Customer reviews:

Since the inception of Eurotubes we were asked why we did not have a customer review page but none were more passionate about this than one of our Carvin customers named Brian Au. Brian won and in 2001 we posted his review! The first review will be Brian's forever! We will include email reviews and reviews posted on various forums from time to time. If you see a review that you wrote posted here and you want it removed please let us know and it will be deleted. This is a VERY long page with well over a thousand reviews!

I must say that I'am extremely impressed with JJ tubes! I was initially going to sell my Carvin MTS3212 combo because the sound was kinda lackluster ...grainy and
alittle sterol...I regreted buying the amp and was going to sell or trade it for something else....good thing I decided to give it another chance by retubing it in
hopes that it could be a difference maker. After replacing the tubes with JJ E34L and E83CC S ...I couldn't believe how wonderful my Carvin sounded! Certainly a
difference maker!! The Carvin is a keeper now!! This amp has got some balls!! The harmonics we're definitely richer than before, the grainy harshness this amp had was gone...alot smoother sounding than before, the treble may be a bit high for my taste... but still very musical sounding,...backing off a bit of the treble control from my amp took care of that. This amp is such a joy to play through now!! When I Crank this baby sounds even better!!! Eurotubes has got some outstanding Customer Service, Bob Pletka has been great to answering all my tube and amp questions. The prices are very affordable compared to the other tubes like Sovtek, EH, Svetlana and etc. You definitely get your bang for your buck not only with JJs but also the wonderful service Eurotubes provides. I would encourage anybody to try
Bob says.."They never fail to sell themselves" Thanks Bob!! Great Tubes!!

Brian - Skokie,IL

-----Original Message-----From: Darryl H [mailto:] Sent: Saturday, August 11, 2018 12:44 PM
To: Eurotubes Support
Subject: Tube Dampers

Hello! I received my tube dampers in the mail last week and finally got a chance to install and use them today. Wow! Tube rattle on my amp (a Two Rock) has been driving me insane for over a year. Anytime I play a G on the second string it was just terrible. These have totally solved my issue!!! Just felt the need to write to say thanks for a great product!
- Darryl 

From: George S [mailto:] Sent: Friday, July 13, 2018 5:54 AM
To: Eurotubes Support
Subject: Carvin Belair Blues Option #2


I wanted to drop a line to you and thank you for your suggestion. The Carvin vintage series has always been known for really good cleans, but the soak(distortion) channel was very muddy/muffled sounding. I didn’t want to do circuit board level modifications if I could help it and after emailing with you I decided to try the Blues Option #2 for the Carvin amp with a different pre-amp tube to lower the gain and give some more headroom to that channel.

Wow, did it work. Now I can turn the soak knob past 2 and it sounds much better. Very much a “British” type higher gain sound. You gave my amp a new life and thank you for your suggestion.

From: [mailto:] On Behalf Of  Uruguay Sent: Wednesday, December 20, 2017 5:32 PM
To: Eurotubes Support

Hi, I bought a couple of valves to replace all the set for my Blackstar HT Stage 60 combo. I have to say that the difference is astonishing, the original valves (Ruby) were terrible...really awfull, I almost sold the amp thinking that the clean channel was useless, but with the new valves he woke up and it's alive! 
Sweet harmonics, strong presence and punch. Now the beast sings like a bird. The E34L for the power amp are so good...I love it, too!

Very satisfied with the service, was quick and I recommend every person I know to use it, and if somebody has a Blackstar HT series, changing valves is a must. 

Thanks from Uruguay, South America!

Cheers and merry Christmas, 


-----Original Message-----From: Leslie [mailto:] Sent: Saturday, December 09, 2017 12:21 PM
To: Eurotubes Support
Subject: The Damping Rings Worked - I’m Amazed.

Hi Bob,

I wanted to write to let you know these damping rings solved a vexing problem I had with a Mesa Lone Star 100 combo. The tube rattle drove me nuts to the point that I couldn’t use the amp to do recordings for my ad music sessions. 

Mesa said that tubes basically suck now, and this is just a problem that’s part of living with newer combos, nothing can be done. I gave up on using the amp for anything other than practice. My other amps are heads and cabs, so I used them for recording instead.

Last week I decided to get serious about fixing the problem, and found your dampers on the web. I was extremely skeptical, but I figured if they reduced the problem 50%, that’d be great.

Well, there is zero tube rattle now. None. The amp is finally useful; sounds great.

Just wanted to let you know how sweet that is! Here’s a shot of the installation (the amp is upside-down so I could install the rings without being a contortionist).


-----Original Message-----From: Kevin K [mailto:] Sent: Saturday, December 09, 2017 9:32 AM
To: Eurotubes Support
Subject: Re: JJ KT88 in SVT-2 Pro

THE JJ KT88’s are AMAZING!!! Thank you guys so much! They just arrived on Thursday and I just can’t say how thankful I am for you guys and JJ Electronics!! These new JJ KT88’s are just killin’ it in my Ampeg SVT-2PRO! They sound amazing and what really impresses me is the construction: the glass is thicker, the internal metal parts look beefier - it does weigh more too. Plus they look sexy as hell I am thrilled - now the amp is all JJ! THANK YOU EUROTUBES������

From: Brian K [mailto:] Sent: Wednesday, December 06, 2017 7:14 PM
To: Eurotubes Support
Subject: Eurodampers


As always, thanks for sending me replacement 6V6’s for my amp (a Wonderdawg by Lil Dawg Amps). Thanks also for the Eurodampers. The Wonderdawg is a Mesa Boogie Mark I sized 1X12 25-watt amp along the lines of a Blackface Deluxe Reverb, and (as you say) it’s a real torture chamber for the tubes. I figured I had nothing to lose with the Eurodampers… and I’ll be darned but they work! 

So thanks for the innovative idea – my tubes will love it too, and it won’t be quite so painful to record with the little beast as it has been in the past. 

‘just thought I’d let you know!

Brian Kilcourse

-----Original Message-----From: Dave [mailto:] Sent: Saturday, October 14, 2017 2:39 PM To: Eurotubes Support
Subject: Vox Tube 


I received my replacement tubes today for the Vox 15C1 (order no. 113299). Frankly speaking, you folks could tell me the earth is flat right now and I’d believe you. What a difference! Fifteen watts goes along ways in this house now. I am going to order the isolator rings and the spring retainer attachments. I am not a big fan of the stock retainers. I see there are several options. If you would, please give the info on the correct ones to order, I will have an order to. Again, thanks for your excellent service. My next outfitting is my Fender Deluxe 3.


From: Nathan [mailto:] Sent: Friday, October 27, 2017 8:52 AM To: Eurotubes Support
Subject: Re: Order ID #113509 - Shipment Completed

Thank you!
I just wanted to let you guys know I received my tubes last night and I am completely satisfied. The shipping was fast, easy, and well packed.

I slapped these in an old Groove Tube Soul o 45 combo that had a bunch of microphonic tubes, and its back to its glorious self. This is my second order of tubes and will be ordering from you guys again when I need some more.

Thanks for the outstanding tubes!

-----Original Message-----From: [mailto:] Sent: Tuesday, August 22, 2017 3:19 PM To: Eurotubes Support
Subject: Customer satisfaction review

I just wanted to take a moment to complement the fine people at Eurotubes and especially my customer representative Michael.

I purchased a JCM 900 a while ago off of eBay and when I received it I took it in, fired it up and OMG! It sounded horrible, like nails on a chalkboard!

I knew it needed to be biased and a new set of tubes but I wasn't sure how bias an amp or what kind of tubes I needed to buy, so I called Eurotubes and spoke with Michael who was very patient with me as I explained my situation and the sound I was looking for. 

After our conversation he recommended set of tubes and sold me a bias probe and even explained how to bias it and what settings to use. Way Cool!! I received the tubes almost over night, in other words, they ship FAST!
Put them in, biased it the way he explained and lo and behold it was SPOT ON for the sound I was looking for!! I couldn't believe my ears!! It was a totally different amp and exactly what I was looking for in sound!
So in closing, due to the incredible patience and respect of the people at Eurotubes I am now a loyal customer, and will use nothing but JJ tubes.

Rock On!

From: Ryan Bailey [mailto:] Sent: Tuesday, July 25, 2017 12:42 PM
To: Eurotubes Support
Subject: Re: EVH 5150iiis el34 stealth


I was just about to email you back. I sincerely appreciate your help and honesty. It would have been really easy to make a quick sale on some KT88 but going the extra mile led me down a different path and validated what I had just done with the kt77s as the more logical choice. That is extremely appreciated. 

This type of business practices is a rare thing today but know that I value it. I love guitar amps and creating unique tones so its cool to be able to call and talk openly about my passions without feeling like a burden. 

Ill be ordering a quad of KT77s soon and will call you to do so. Thanks again. Btw that EVH 5150iiis el34 amp with the 6CA7 tubes got so many compliments at the first gig I used them at. 


From: Tor Hagen [mailto:] Sent: Saturday, May 13, 2017 3:00 PM To: Eurotubes Support
Subject: Re: Retube kit for my Splawn

Hi Michael,

Tubes arrived on Thursday and I finally got a chance to stop by the studio and swap them into the amp.


The tubes that was in the amp was a mish-mash of random brands and quality tubes, so you can imagine the difference now :P

Thank you again for your help, patience and knowledge in assisting me with all of this - I am a huge fan of your help and business and will be returning (and recommending you guys to friends and so etc.)

Best regards, 

-----Original Message-----From: Gerald Jachyra [mailto:] Sent: Sunday, May 07, 2017 3:45 PM To: Eurotubes Support
Subject: Another great review!!

Thanks so much for the assistance I have gotten from your knowledgeable, and apparently very reliable staff. You guys turned me on to the Gold Pin JJs (12ax7s). Love the sound (installed them in all my tube amps), JJs improved my Marshalls, and a Peavey Valveking I had almost given up on. But I especially appreciate the help you gave me biasing the Marshalls, I had them biased at a shop locally and the JVM sounded OK, my DSL 15H was not so great. 

I purchased your bias probe "Pro One" and gave it a try. Much, much better tone and feel on the DSL, and some improvement on the JVM (which seems to sound great always). The local shop had both amps biased wrong, the two sides were not even on the JVM, one side too hot, the other on the cool side, the DSL set way too cold. 

I used your recommended calculations and WOW, what an improvement, best sound I have ever got out of these amps!! If you want your amp to sound the way YOU want it too, take a little time and bias it yourself, the guys at Eurotubes can answer any questions you have, they must know their business, I don't know a lot about the guts in my amp and I am getting superb tone with their assistance! You won't be disappointed!! Thanks again!

Sent from my iPad


From: Johnny Patterson [] Sent: Friday, April 28, 2017 5:15 PM To: Eurotubes Support
Subject: Satisfied customer 

I just want to thank you guys for your service, you treated me great and my tubes got here super fast, and best of all they made my 5150 sound like a monster again. I will defiantly be doing more business with you guys in the future so thanks again for the great tubes. 

Fan for life Johnny Patterson.

From: -[mailto:] Sent: Tuesday, March 07, 2017 3:49 AM To: Eurotubes Support
Subject: High Gain KT88 retube kit for Mesa Single Rectifier 

Dear Eurotubes,

I just wanted to say thank you!!! I acquired my Mesa Single Rectifier used from a pawn shop with Mesa EL34 power tubes and Mesa 12AX7 Russian preamp tubes installed by the previous owner. I had never actually been fully satisfied with the sound of it... until now!!! Your High Gain retube kit with the KT88 power tubes matched specifically for the fixed bias of this amp really brought this thing to life!!! It sounds HUGE, TIGHT, and AGGRESSIVE as all get out with this setup!!! Exactly the kind of tone I was hoping to achieve!!! 

Thanks again,
A very satisfied customer

-----Original Message-----From: lenny[mailto:] Sent: Thursday, February 23, 2017 5:08 PM To: Eurotubes Support
Subject: RE: Order ID #107391 - Shipment Completed

Good evening,

Tubes arrived today. I have to tell you I was quite skeptical that the DSL-15 low gain option would in fact tame the red channel, without effecting the clean channel. It did exactly as advertised. Excellent tone all around. The red channel is still a beast, but, it definitely gave me more headroom and tonal options, instead of total insane saturation on lower gain settings. All around tonal character of both channels is excellent. The JJ's are great. Very full and musical and quiet to boot.

You guys know your tubes. I have many amps and I'm sure we will doing more business in the future.



-----Original Message-----From: Jeff Rupert [mailto:] Sent: Wednesday, December 21, 2016 7:09 PM
To: Eurotubes Support
Subject: PV 5150 Low-Gain 6L6/KT88 set

Holy shit! 

I'm sorry, but I!

I have never messed around changing tubes. I used to pay a guy to do it for me when I toured back in the 90's, and he only used stock tubes, per my direction. 

I bought a 5150 Block-Letter and was very under-whelmed. I figured I would replace the tubes and try something different for the first time ever. Let me say that when I called, Michael was a big help. V1, V3...hell, I have a V6 in my Nissan and I used to have a Flying V...anyway, he straightened me out. 

The sound is UNBELIEVABLE!!! I worship my Blackstar Series One and my Laney, but my PV5150 just rose near the top now. The low-gain is perfect (still too much gain even for metal players, as anything past 5 is just silly).

Thank you for the help, and the great product options. What should I toy with next? Hmmmm...


Jeff Rupert

-----Original Message-----From: Eurotubes Inc. [mailto:] Sent: Saturday, November 19, 2016 9:21 AM To: Eurotubes Support
Subject: Customer Service Request - Great tubes

Customer Name: Norman Rivers
Customer Email: 

Hey, Just letting you know that the KT77 tubes sent in my recent order were the closet match quad of tubes I have ever installed in my Marshall 6101. I burned them in for about 1/2 a day yesterday in my 250V Class A tube tester and the tubes were super stable for current and transconductance upon testing in the tube tester. Never seen any other tubes that I have installed and tested in my life be as stable. They were also just as perfectly matched and stable when I installed and biased them in my amp. All four tubes were all within less than 1mA of each other with my bias probe and stable throughout the biasing procedure. 

Also I am really impressed with the four high gain ECC83S tubes in my order. They are very nice. The amp is performing just about as good as it can get.

Norm Rivers

From: Daniel Smith [mailto:] Sent: Monday, August 22, 2016 9:34 AM
To: Eurotubes Support
Subject: Re: Order ID #104242 - Shipment Completed


I have a recently purchased Fuchs Blackjack 21 MkII combo that was rattling the heck out of brand new JJ 6V6's. Your tube dampeners are AMAZING! Literally destroyed all hints and signs of tube rattle. I bet these would work wonders in most combo amps, plus they look like they would last for at least a decade, that's a lot of rubber!

I'm no longer quite as afraid of combos as I was, didn't realize how well these dampeners would work.

Daniel Smith

-----Original Message-----From: David Young [mailto:] Sent: Friday, September 16, 2016 1:48 PM
To: Eurotubes Support
Subject: Young-Great tubes

i don’t normally take the time to write comments but I just had to let you know that I’ve been ordering from you for over 10yrs now and I can say that these JJ’s are absolutely everything you’ve said they were. 

i just got a Friedman BE and it is a fire breathing beast with these tubes compared to the tubes that shipped with the amp. 

Many thanks for the great service and for all the great advice. I will continue to order all my tubes from Eurotubes. Also the Pro Bias probe is excellent! Take care!

Dave Young

-----Original Message-----From: Dan Peick [mailto:] Sent: Sunday, March 06, 2016 6:14 PM To: Eurotubes Support
Subject: My jj set

Hi Bob,
Got my new tube set of JJs for my new EVH/100 installed, and they sound GREAT! Not a single microphonic tube in the set of seven preamp tubes! The phase inverter appears well balanced as the outputs are crystal clear! The 6L6 power tubes are also solid as the proverbial rock, and make this amp sing like a bird!

this is I think my third time doing business with Eurotubes, and I have many tube amps to service, and several tube based studio pieces, so it's nice to have a quality vacuum tube source!

I am sure we'll be doing more biz down the road!

Great tubes Bob!

Thanks for helping with my amps! The JJs ROCK!!!

Dan Peick,

From: Kenny H [mailto:] Sent: Sunday, February 21, 2016 4:33 AM To: Eurotubes Support
Subject: Re: I need some expertise

I wanted to thank you, once again, for your recommendation and expertise. I put the new tubes in my Fender Concert after using the contact cleaner your accompanying paper suggested. I had intended to check for operation and go to bed because I am up for a long work day today and it was late when I got the tubes in. After the tubes warmed up a bit I couldn't put my Les Paul Standard down. I never tried anything but clean tones because it sounded so good! I didn't get as much sleep as I needed and it is all your fault, ha! Fantastic sound! I have always loved that amp and have turned down several offers from friends to buy it. But now, it's just a little better! Less noise and even warmer. When my other amp needs a re tube I will check with you again.

Much appreciated,

-----Original Message-----From: Willy Snook [mailto:] Sent: Sunday, February 21, 2016 8:30 AM To: Eurotubes Support
Subject: Thanks!!!

To Eddie and Michael~
Thanks to you both for your input and guidance regarding my Vox AC-10 the other day. I just installed the new tubes with dampeners, and the amp is transformed. Very musical, warmer, more output, more headroom, no rattle! Everything you said they would do, they did. Could not be happier. I do have a Weber ceramic Silver 10 on order. Fun stuff. 

Thanks again, and best regards to all ~

WIlly Snook
Lake Oswego

From: Tom  [mailto:] Sent: Saturday, January 23, 2016 9:05 PM To: Eurotubes Support
Subject: Re: power tubes for my Primaluna amps

Hi Matt- I have had the JJ KT88's running for about 100 hours straight in my system and all I can say is WOW!!!. These tubes are so much more dynamic and extended at each end of the spectrum and doing it with being sooooo smooth. The Gold Lion reissues sound dark and flabby compared to the JJ's.Sound stage is much bigger and the detail and depth of vocals and instruments is amazing.

Thanks, Tom

-----Original Message-----From: Gabriel F [mailto:] Sent: Thursday, December 17, 2015 8:13 PM To: Eurotubes Support
Subject: Really enjoying my euro tubes


Just wanted you to know that I retubed my Budda Superdrive 18 with the JJ tubes that I ordered from Euro Tubes and the amp sounds AMAZING, the amp sings with clarity, the bottom is crisp and not mushy and the new tubes have given new life to my amp. I never knew that new tubes make such a big difference to the sound of the amp, Thanks so much for offering such a great set of tubes for my amp.

Best Regards,


From: Andrew [mailto:] Sent: Monday, November 16, 2015 6:37 PM To: Eurotubes Support
Subject: 6v6s and eurotubes speaker cable

I did some tracking this past weekend with the 6V6s in my Anderson 20/45 and man, what a beautiful sound! I had a pair of nos GE 6V6s a while back and they were great, but they went bad rather quickly as is often the case with nos tubes. The JJs are really big sounding for 6V6s and the breakup is just perfect. JJs outshine everything else I've tried.

The speaker cable kicks ass! Very sturdy and rugged, and there is decidedly less signal loss compared to my other speaker cables.

Thank you guys so much for the fantastic products and service!

-----Original Message-----From: Brett [mailto:] Sent: Tuesday, July 21, 2015 8:29 PM To: Eurotubes Support
Subject: Marshall DSL 50

I just retubed my DSL 50 based on your tube recommendation. All I can say is WOW! My amp really came to life. Before I changed the tubes, I was contemplating selling it because it was mediocre at best. Thank you so much for your expertise. Now I'm anxious to get new tubes for my JCM 800.

Brett Diaz

Sent from my iPad

-----Original Message----- From: Eurotubes Inc. [] Sent: Friday, June 12, 2015 2:20 PM To: Eurotubes Support
Subject: Customer Service Request - Just wanted to say thanks for helping me dial my sound right in.

Customer Name: Bryan Gumieny
Customer Email: *************

Hey Eurotubes Bob and the rest of you guys. I just wanted to take a quick minute and express my gratitude for the amazing tubes you set me up with and for the top notch service after the sale. A while back I purchased a custom set of tubes for my Peavey JSX from ET and was so thrilled with the results that I just ordered a standard tube kit for my Ampeg SVT-CL and a "House Favorite" tube kit for my Orange AD30HTC. I am again thrilled with the results. The Ampeg is so punchy and musical now and the Orange.....Let me tell you... I have read the page you set up just specifically for the EL844s extensively, and those negative comments about the lower power and plate voltage and all that b.s. I find that so laughable. 

The proof is in the pudding. I really didn't think that you could improve the sound of the AD30HTC. I have loved that amp ever since the first time I ever played through it. But now the sweet spot is so much more managable at the lower output level. I fell in love all over again. You have really blown me away ET and I won't even consider another source for my tube needs from now on. Thanks again and all the best to you.

Rock on.


From: Daniel  [] Sent: Thursday, April 23, 2015 3:44 PM To: Eurotubes Support
Subject: Re: Ibanez TSA15combo

Hi Eddie,

I came home to find my new tubes waiting for me on my doorstep, AWESOME!

I followed the directions included in the package and swapped em out and have noticed an increased top end clarity while also squeaking out little bit more gain as well. This was just what the doctor ordered for my little combo. I have played on the amp for about an hour and it continues to sound better and better. 

Thanks so much for all your help and I will look forward to doing more business with you in the future.


-----Original Message-----From: Eurotubes Inc. [] Sent: Thursday, April 23, 2015 1:14 PM To: Eurotubes Support
Subject: Customer Service Request - new tubes

I hated my YCV 40. I had since the day I bought it. I always thought it was brittle sounding. The overdrive channel mushy.

The blues set and the 5881 JJ's made..., and this is an understatement,... a HUGE difference!

My amp sounds great!

From: drcozzens [mailto:] Sent: Saturday, March 28, 2015 11:34 AM To: Eurotubes Support
Subject: My Recent Order & Service


Talk about great service! WOW!! 

I recently bought a new Marshall JVM205c and one of the stock EL-34's crapped out about 2 weeks later. Decided to order a matched pair of EL-34L's from you after reading the info on your site.

I placed my order and immediately received an email conformation. Then, about 15 minutes later, I got a shipping confirmation. Two days later the tubes arrived from you in OR to me in PA. I really appreciated your attention to detail: a very sturdy box & lots of packing material. Tubes were each wrapped in tissue paper inside their respective boxes. Obviously, you cared about my tubes having a safe and comfortable ride across the US.

Following the directions on your site, I checked and adjusted the bias on the amp with a multimeter; surprisingly it was pretty far out of spec even thought the amp is brand new. Thanks for that info. It was easy and well work the minimal effort it took

Thanks to your advice and the recommended tubes my amp sounds noticeably better already. I'll be back for a full set of JJ's. You've more than earned my business!

With Gratitude,

D Cozzens
Lancaster, PA

-----Original Message-----From: MarkR [mailto:] Sent: Friday, January 09, 2015 1:22 PM To: Eurotubes Support
Subject: Order Code VJE9181452899


My God, once again you have exceeded my expectations. I received the new set of "Gold Pin Option" tubes for my Mesa Boogie Recto-Verb today and the word that comes to mind is simply WOW!

A quick phone call to your company earlier this week aided me in my decision making process, the gent who answered my questions and gave me information was patient and incredibly helpful.

The KT-77’s that you suggested I use for the power tubes are performing as described and then some. The bass is tighter, harmonics and midrange are balanced and musical sounding. I notice a major difference between them and the stock Mesa 6L6’s that were replaced The Gold Pin 12AX7’s are also performing as your website states. The high end (icepick) grit is gone, the EQ of the amp is far more responsive and the gain structure is easier to dial in.

I have been in AV industry for about 23 years now and have to say that the level at which you operate your business and the care that you put into your website and offer your customers is the finest I have seen in a while.

Thank you for everything you do, I will be suggesting you to everyone that I encounter who can benefit from your service.

Warm Regards,
Mark Rehfuss

-----Original Message-----From: Ron Thomas [mailto:] sent: Tuesday, January 06, 2015 8:47 PM To: Eurotubes Support
Subject: Re: Order ID #82904 - Shipment Completed

Hey Folks,

Man o man..these tubes are just unbelievable!

This old Dual Showman sounds just as sweet as I remember them to sound in the 60’s. How I wish I could afford to sell these in my shop.

I keep telling my customers to order from Euro and stop buying anything Guitar Slimmer, I mean Center or any other store sells.

These are just amazing!!

Thanks BOB!

Ron Thomas
Edmond, OK

From: vaughn gallacher [] Sent: Sunday, November 23, 2014 9:32 PM To: Eurotubes Support
Subject: Simply Amazing!

To the EuroTubes staff: 

I recently purchased your gold pin option 6L6s retube kit to replace the RED Fender tubes for my 1997 Fender Tone Master and had to let you all know that from the moment the retube kit was installed and biased the Tone Master truly became a TONE MASTER. You all are true to your word. My Tone Master now has the “WOW” tone factor be it at a volume of 1 or 11 and regardless if it’s the clean A channel or driven B channel. 

Your gold pin tube tone brings back life to my 1982 Fender Strat, 1972 Gibson SG, and Paul Landers Les Paul. 

You all simply flat out Rock!

THANKS A MILLION for making TONE your Business!

Vaughn Gallacher

P.S. I also have your gold pin tube kit in my 1996 Fender Hot Rod Deville and as you can see from my facial expression it too has the “WOW” tone factor!

-----Original Message-----From: Joseph Desouza [mailto:] Sent: Wednesday, October 29, 2014 5:18 PM To: Eurotubes Support
Subject: Wow! What an amazing difference!

Hi Bob,

I just wanted to let you know that these tubes have transformed my old amp! I have a recently purchased old 1970 marshall super lead that, like so many old Marshall's, has been extensively modded back in the 80's for a crazy amount of gain. That's all good for playing some van halen & dokken, but for the most part I'm a blues player in the likes of bonamassa, clapton, etc. I had read on a forum somewhere to swap out the 12ax7's with a 5751 in V1 to reduce the distortion somewhat, and you recommended a balanced ECC81 as a phase inverter tube.

Well, I'll tell you I am blown away how much better it sounds! It has a fuller bass, and a nice top without being shrill like it was with the stock Chinese marshall branded tubes!! It seems almost like the amp is more "equalized" all around, I guess more musical is a good description...And it also has a three dimensional depth to it that wasn't there before, which I guess would be the ECC81!! I didn't think a balanced tube could do so much for the TONE!

And FINALLY I can have better control over the distortion! I used to have both volumes set at 2 and be at what seemed to be full just got messier as you turned it up. Now the volumes are set at 5 (straight up) to get the same gain as I used to get on 2, but the distortion is clear and smooth with good definition, you can hear every note on a strummed G chord...

If I need more gain I kick on a boost pedal and I'm in brown territory! I was considering having the mods reversed, now I really don't need to - It sounds so good I don't want to touch it!! And I can always go back to the overkill distortion if I wanted to by just swapping tubes. Loving it.

Thank you SO MUCH for a great product and support!

Joe Desouza
Palm coast, FL

-----Original Message-----From: Chris Smart [mailto:] Sent: Thursday, October 23, 2014 12:23 PM  Eurotubes Support
Subject: Hughes and Kettner Grandmeister: Big Improvement!

To Eurotubes: Feel free to use the below testimonial on your Website.

I've been using JJ tubes from you in hi-fi and guitar amps for years, and even preferred JJ tubes from another vendor before that. But, I have never experienced such an improvement in tone as I just did by upgrading the tubes in my Hughes and Kettner Grandmeister.

With the stock Chinese tubes, this amp was very bright, even with the Presence control at minimum. The distortion, although nice, had a brittleness and fizziness I wanted to tame but couldn't dial out. Installing a quartet of JJ EL84's in the power section, ECC83S gold pin in V1, regular ECC83S in V2 and ECC83S with balanced triodes in V3 accomplished the following improvements:

The brilliance in the treble is still there, but it is refined now. Where before I ran the Presence control at minimum, I now run it at about 30% and get the same tone. It's whole range is both more musical and useful. On the high gain channels, I can now go from a dark tone to a very modern-sounding bright tone easily.

I was skeptical about a gold-pin 12AX7 having a "smoother" break up compared to the non-gold pin variety, but with the gold-pin in V1, I'm now getting a lovely more subtle break up when I push the amp's clean channel. This is now perfect for blues, Steely Dan tunes, etc.

Anybody with a Hughes and Kettner Tubemeister or Grandmeister, before you write your amp off as "too hi-fi sounding", try the above tube upgrade!

Thoroughly impressed,

Chris Smart, Ontario Canada

From: Dave Wood [mailto:] Sent: Monday, October 06, 2014 3:11 PM To: Eurotubes Support
Subject: Review part II Carvin V3 High Gain Option with 6L6GC

I am so pleased with my tone, I had to write back again. Remember, these tubes are over 2 years old.

When I sent my original review over 2 years ago, I was playing a Gretsch 6120 and Yamaha SGB 2000 - both of which have low to medium output pickups. I recently acquired an Ibanez Xiphos XPT 700 that has very hot pickups. 

Oh man does this rig roar! My Carvin V3 with 4x12 cab sounds incredible. The cleans sound suprisingly good with the hot humbuckers and are full, round and articulate. The crunch sounds are dynamic and complex. The cranked up distortion is amazing and very responsive. 

My amp responds very differently to each guitar and I feel my investment in a quality set of matched tubes has been at least as important as the rest of my rig. 

I am astounded at the variety of tones available now after switching out the original GT EL-34's.

Many Thanks, again.

Dave Wood
Hesperia, CA

From: Michael K [mailto:mk] Sent: Saturday, September 06, 2014 6:00 PM To: Eurotubes Support
Subject: Re: Tubes 


I just wanted to let you know the new MG tubes are amazing. My supply of NOS tubes has dwindled over the years, but these can hang with everything I have left.

I find them to have a tight bass, a pronounced and rich midrange, and plenty of musical chime. They don't have quite the breakup the ECC83S, which makes it a nice alternative!

By far, my favorite current production tube for all amps that aren't high-gain!

I hope this one is around for a LONG time!

- mk

From: Michael M [mailto:] Sent: Friday, July 25, 2014 8:53 PM To: Eurotubes Support
Subject: Orange AD30HTC Personal Fave

Hi Bob,

I just wanted to let you know how much I am enjoying the "Personal Fave" retube kit for my Orange AD30HTC. I am running 2 cabs with it: an open back Orange cab with 2 Celestion V30's and a closed back Hot Rod Fender converted extension cab loaded with 2 x 10" Eminence Ramrods. The tubes were expensive, but well worth it. Not that it sounded bad with the stock tubes, but there was a certain type of grittiness to the sound that I didn't personally care for, but with the gold pin ECC83s and ECC803 in V1, the sound is total high fidelity and as you said, smooth and creamy. Adding a mild sustain pedal to the mix is sonic nirvana.

Thanks again for providing a great service.
Louisville, KY

From: Jen & Al [mailto:] Sent: Sunday, July 13, 2014 8:32 PM To: Eurotubes Support
Subject: Re: 1969 Super Reverb

Hello Staff at Eurotubes,

I just got the new tubes into my ‘69 Super and it sounds incredible. This is the second amp you have helped me re-tube and I am so grateful for the knowledge, tools and support you all have given me. My tone has never been better. I have been bragging you up to all my guitar buddies and they can hear the difference as well. Til we do it again.......


-----Original Message-----From: The Danimal [mailto:] Sent: Friday, July 04, 2014 10:27 AM To: Eurotubes Support
Subject: Re: ReTube Sets - Boogie

Hi Bob & Jay,

It's been a week since I got and installed my tube set and I've got to tell you: when I first put them in I thought "whoa, way too much mids, what have I done?!"

As I continued to play I realized that there weren't too much mids, it's that my old sound was just lacking more tone. It's addictive and fun again to play through the amp! The sound is so much more rich. The Half Drive mode on the 395, which I wrote off initially as "harsh," sounds great! And my oh my, the cleans. They finally have that great sparkle to them that was always missing previously. 

Honestly, the improvement to the cleans alone was worth the upgrade, but the distortion patches all sound splendid as well.

The TriAxis is complicated and has a LOT of sounds in it so I'm not done exploring them all yet. This is mostly because I get stuck on how good each patch sounds and end up just playing that one for hours.

Thank you so much for your help, this is really the best the amp has ever sounded!

Have a safe and happy Fourth of July!


-----Original Message----- From: Kevin [mailto:] Sent: Tuesday, June 24, 2014 7:37 PM To: Eurotubes Support
Subject: THANK YOU!

I retubed my carvin amps and wow what a difference! The V3 combo with 6L6s high gain kit is beyond my wildest expectations. I may sell the V3m combo to get another V3 and put the high gain 6L6 kit in. I cannot get over how great it sounds. Don't get me wrong the upgrade of the V3m is very good but the sparkle, spring and spank the gain the 6L6 high gain kit brings is outstanding. 

Thank you from very satisfied customer

Kevin P

From: Dan K [mailto:] Sent: Saturday, June 14, 2014 8:37 PM To: Eurotubes Support
Subject: To Jay / M. Kohn - ECC 832 etc

Hey guys,

I phoned in my order a few days ago, and received the new tubes yesterday. Had the house to myself today, so I put em in and tried em out and WOW!


... This cheap ass little amp (Epi valve jr combo) sounds really really REALLY good now!

Thanks for your help!

Jay answered my emails and gave me great info... and then I guess it was Michael that took my phone order, very helpful, very well informed. 

I am a very satisfied customer, I got exactly what I wanted. Great customer service and great product delivered quickly! 

The results are wunnerful!

I am up near Seattle, so you guys are almost neighbors. Even better.


-----Original Message-----From: Terry N [mailto:] Sent: Tuesday, June 10, 2014 12:49 AM To: Eurotubes Support
Subject: Re: Bias for the Twin Reverb Re-Issue

I really want the world of tone freaks to know how awesome your re-tube kits are. I liked the DRRI sound so much I purchased a kit for my twin and my Blues Jr. 

I've been looking for a particular tone for quite some time. I've owned at least 10 amps in the past five years. Last year I purchased a Deluxe Reverb '65 reissue. I was a little disappointed with it's sound. I play Jazz, Blues, Rock and country so it's difficult to find one amp that can meet my tone requirements. At first I didn't think the DRRI was going to cut it. It seemed okay for Country but I was really disappointed in the Jazz and Blues sounds. Then I stumbled on your website. After reading a few reviews I decided to try the high headroom re-tube kit. Holy smokes! I was grinning from ear to ear as I played thru this amp. It still puts a smile on my face just to think about it. The bass are tight and clear. The mids are no longer hiding in the background. The highs sparkle. I like this amp so much I may get rid of my Two-Rock.

I'm sure this email resembles a cheesy commercial but I don't really care. Props should be given where they're due. They are definitely due for y'all.

Keep up the good work!


-----Original Message-----From: Jeff Raymer [mailto:] Sent: Friday, May 23, 2014 4:39 PM To: Eurotubes Support
Subject: Customer Review

Thank you wonderful people at Eurotubes! JJ Tubes have made my Hotrod Deluxe sound fantastic! Always great to deal with and very knowledgeable. I have no reason to ever deal with anyone else for tubes. The shipping was super fast to Missouri from Oregon and was able to be tracked through USPS. Prices are better than anyone else too. Installation and bias made easy from the help of the great people at Eurotubes. It's nice not having to pay a tech big bucks for something I can just do myself. JJ Tubes have a clean sound that is melodious to my ears. 

Thanks again!

From: Jason Perry [mailto:] Sent: Tuesday, May 20, 2014 8:15 AM To: Eurotubes Support
Subject: RE: Tubes 

Just wanted to say thanks for the awesome service. I ordered tubes Friday and they were at my house Monday. I had never used JJ tubes before and I am very pleased with them. My AC30 has never sounded quite like I thought it should, it sounded good but not great and I've always known it was the tubes but haven't gotten around to replacing them until now. 

The stock tubes didn't even have a brand on them, just said made in china. Now it sounds amazing, much better character and detail. The AC4 has never sounded better. With the stock tubes the sound got really thin and fizzy when you cranked it and you couldn't turn the tone control up very much without it sounding really nasty but now with the EL844 and the JJ 12ax7 it's like a different amp. 

The EL844 is a killer sounding tube, the volume difference isn't all that noticeable (could be cos it's a single ended 4 watt amp) but the tone is awesome. I've got a couple of other tube amps (Fender Hot Rod Deville 410 and a Blues Deluxe Reissue) and when I get ready to retube them I'll definitely be ordering from you. Thanks again


From: Michael Alexander [mailto:] Sent: Saturday, May 10, 2014 12:15 PM To: Eurotubes Support
Subject: Nice job!


Just wanted to tell you how happy I am with your product and service! Who knew what a difference these tubes make? As a first time customer certainly not I.

I've been running thru boogies for over 20 years and loved their sound. A few years ago I decided to try a mesa dual rec and wound up disappointed. I run thru two 4x12 cabs, and although it's loud it didn't have the wrath of god tone I was looking for. The clean channel sounded cold and crappy as well. It sounded as thought the cabs were overloading and sounded broken. I tried new mesa 6L6 tubes thinking that may be the problem. I also tried changing pickups in some of my guitars to no avail. I still wasn't getting that killer crunch and bleeding feedback I prefer. While online searching up voodoo labs for a possible solution I tripped on the eurotubes website. For the price difference I thought I'd give eurotubes a try first. 

There was so many options I wasn't sure which way to go. I emailed them and explained my situation. Bob promptly emailed me back with a suggestion and why he thought this would be my solution. He suggested the 6V6 high pre option with the GZ34s. What a difference! 

I finally had that sweet sizzling thick raspy distortion I was looking for yet it wasn't blisteringly loud. And how it slowly bleeds into feedback nirvana is gorgeous. Power chords that want you to grit your teeth while you're playing them! The clean channel also surprised me as well as notes and chords chimed and sparkled as never though possible. 

Thanks again for helping me solve my dilemna! I am a eurotubes customer for life! Thanks everyone!


From: Mitchell G [mailto:] Sent: Sunday, April 13, 2014 3:08 PM To: Eurotubes Support
Subject: Re: Tubes

Hi Jay,

Just wanted to say thanks. I followed your instructions to the letter, cleaning the contacts with electrical contact cleaner, working the new pins in and out a few times. I took my sweet time both installing and biasing (it was my first tube install). The whole process went off without a hitch. You provided all the information I needed, I just needed to read it a few times to make sure I understood everything. Remember those plastic model kits from when you were a kid that said "read through and 
familiarize yourself with all the instructions first?" Same idea here.

LOVE the JJ 6V6s in my Hot Rod Deluxe! I got the volume down to where I need it, and the tone is even sweeter than the stock GT6L6Cs that I pulled out! And when I need to use my Weber attenuator at home, it's a lot more effective!

You guys are the best.


From: ed [mailto:] Sent: Saturday, March 29, 2014 6:31 PM To: Eurotubes Support
Subject: Re: 5150 combo tubes

Hi Bob, 

I know you get these kind of emails all the time but I wanted to let you know that i just finished putting the new tubes in my 5150 combo and it went absolutely fine, was super simple (yes I used the contact cleaner) and it sounds great!

I couldn't be happier with your service or the sound of my amp.

Thank you.


From: Matt Alexander [mailto:] Sent: Tuesday, March 11, 2014 6:53 PM To: Eurotubes Support
Subject: Re: Tubes


I meant to reply to this email to give thanks sooner, but have been busy the past couple weeks and forgot.

Just wanted to say thank you, and the tubes arrived for my AC15C1 lightning fast. I installed them the night they arrived and they sound phenomenal. It's my first tube amp, so I thought it sounded great with even the factory China tubes, but the JJ's 
turned it into a whole different animal. Serious range of tone from ridiculously bright jangle to warm and mellow at the turn of the tone cut or EQ knob. They overdrive just right, and I can put a boost in front of it if I want more out of the amp itself. Otherwise, plenty of clean to throw whatever pedal in front of it.

Thank you!

Matt Alexander

From: Kevin Savage [mailto:] Sent: Friday, February 28, 2014 10:40 AM To: Eurotubes Support
Subject: Re: Tubes


Got my KT66's in mail. Installed them with my tech @ 39mA in my Soldano SLO-100. Pushing 500 volts at rehearsal volume. Still rocking JJ 12AX7's you matched for me from a retube order I made about a year and a half ago.

My amp is an absolute f***ing beast.

Thank you so much for your attention to the little things. I coordinate customer service for a living, and yours is top notch. 
Keep up the great work.

Take care guys.
-Kevin Savage

-----Original Message-----From: mx [mailto:] Sent: Friday, February 21, 2014 11:35 AM To: Eurotubes Support
Subject: tubes

to Bob and Michael,

i recently purchased from you, a retube kit for a marshall tsl60 ( j j's, kt77, ec83s ), and i am so happy with the results, that i bought some ec83s gold pins. i put one in my solidstate marshall avt 50 head ( it's a tube preamp), and like wise in my marshall valvestate 100. in both amps the tones smoothed out and sound great!!!!! i'm looking forward to servicing my tsl100 soon!!! i'll definetly be making another purchase from you guys, thanx !!!!!!!!!!!


-----Original Message-----From: jesposi1[mailto:] Sent: Saturday, February 15, 2014 3:08 PM To: Eurotubes Support
Subject: mesa boogie f50 retube kit

Hey Guys
Just wanted let you know that the Mesa Boogie F50 High Gain Retube kit was a home run. I purchased the amp from the original owner and the amp still had the original tubes. The amp sounded ok but I knew it could sound better. I have purchased kits and preamp tubes from Eurotubes in the past and I knew you wouldn't let me down.

I installed the tubes as per instructions and WOW, the amp sounds phenomenal. It's so much tighter with the right amount of crunch and gain. Thanks again for making another one of my amps sound perfect. JJ'S RULE!!!!!

John Esposito
Saratoga Springs NY

From: tim kramer [mailto:] Sent: Wednesday, February 12, 2014 10:47 AM To: Eurotubes Support
Subject: Re: a kit for my vht 2/50/2

Hi Eurotubes,
My tech just left, new set of 6ca7's and pres are in the VHT 2/50/2, biased and working. I can't say enough what a difference this has made. The extra help from Michael in finding out the ins and outs of tubes was super helpful and re-assuring. I'll 
be getting all of my tubes from Eurotubes, for life! Many Many Thanks!

Tim K 
Palm Desert, CA

From: Kerry Adams [mailto:] Sent: Monday, February 10, 2014 2:36 PM To: Eurotubes Support
Subject: Re: Fender Supersonic 22 Tube Kit

Michael, tubes arrived today. Great kit...well packaged. All in great shape.

Perfect install, bias set and after about a 5 minute standby burn-in, they sound great. Nice compliment. Preamp tubes are clean yet just spongy enough as are the 6V6's.

This amp is only about 6 months old and after about 5 gigs it started having low frequency boominess after any chord or even single low notes. Terrible. Almost a constant rumble that would last upwards of about 1/2 second or more. Almost unplayable and although I can tolerate some amp noise, this was like an odd ordered harmonic that was almost constant after any strum. I chalked it up to factory tubes (hoping I didn't have a PCB issue)

Well, not only is that ALL gone, what great tone! This is how my old Deluxe's used to sound...but being a SS it's even more flexible. As a 40 year player and working with a lot of artists here in the Metro Detroit area, I will definitely plug your outstanding product lineup and even better support.

I couldn't be more pleased with you and your company. Please pass this along to your team.

Kerry Adams
Adams Audio Works

-----Original Message-----From: Chris Halford [mailto:] Sent: Sunday, December 29, 2013 3:19 PM To: Eurotubes Support
Subject: Mesa nomad tube set

Wanted to drop a line and say thanks. Your advice on my amp was spot on. The el844s and the blues option preamp tube set have turned a mediocre (at best) sounding mesa nomad 45 into an amazing amp. The el844s are truly a winner. For the first time i have an amp with a perfect clean channel for my style. I am thinking of swapping my dc 3 over to the same set. Also, shipping was great. Well packaged and incredibly fast, 3 days across the country with christmas in the middle isn't bad. Once again, thanks and great job! 
Chris Halford 

Sent from my iPhone

From: John [mailto:] Sent: Thursday, November 28, 2013 9:06 AM To: Eurotubes Support
Subject: This is a review that I hope you post.

I have a Carvin "Legacy" 212 Combo. When I bought it used it sounded terrible. It popped and crackled when I hit certain tones on my guitar. The overdrive or "Soak" channel sounded dull and lifeless. It was totally unplayable. I got on line and crammed my brain with tube amp knowledge. I made sure that the bias was set to Carvin's specs. The Carvin web site said it should be set at 100. It was a little off but that didn't help at all. I learned that I was hearing "tube rattle" so luckily for me found the Eurotube web site. There was a whole section on the problem I was having with my particular amp. Just to make sure I was doing the right things I called a couple of times and a real nice guy took the time to tell me what was going on and what to do. I learned that the 100 that Carvin suggested I bias the amp to was way too cold and that I should set the bias to 160-180.

I also learned that the tube rattle was happening because some or all of my tubes were bad. Skeptical, I ordered all new tubes, both power and preamp tubes. I went for the JJ gold pins. I replaced all of the tubes and set my bias to 160. I could not believe what happened. All of those ugly noises went away and it woke my amp right up. The soak channel is very useable now and the amp sounds so good on either channel. I was getting ready to sell it and buy something else but I'm so glad that I found the Eurotube web site. I didn't plan on writing anything like this but it's been a few months now after being complimented so many times on how nice my rig sounds, I decided to write something to show my appreciation for the folks at Eurotubes. I knew very little about tube amps. I never biased an amp before this one. I'm grateful for Eurotubes and the folks that run it.

Sincerely, John K. Gee
Bow, NH

From: Tim & Sue [mailto:] Sent: Wednesday, October 30, 2013 1:26 PM To: Eurotubes Support
Subject: Thanks for the great tube help!

I thought I’d give you an update on a tube transition recently completed on my Fender Hot Rod Deluxe.

I called recently and explained what I wanted the amp to do……be clean, and I mean pristine Fender clean when I wanted clean, but be able to take some gritty distortion in front of the amp when I needed that.

I was advised to try the “Max Headroom” full tube package, and it is PERFECT!

I have a Celestion G12H Blackback 30w speaker in my HRD, replacing the original, and between the tube make-over and the speaker upgrade, I will put this up against any amp in its class. Terrific tone!

Thanks again for the advice and great personal service!


Tim Lungstrom
Buffalo, MN

From: Goldwyn [mailto:] Sent: Friday, September 20, 2013 9:21 PM To: Eurotubes Support
Subject: Re: Tubes

Hi, i have just installed them tubes on my Bugera TriRec yesterday, and i must say i actually noticed a very real difference in tone, it has warmed up and not as fizzy as anymore like with the old tubes! The tone sounds fatter, richer, and smoother! 

I really like your costumer service by the way, great communication there! I felt i was well instructed and educated and felt really confident in the process.. I can really see why Eurotubes's reputation is high! Would easily recommend you to anyone looking to get new tubes! 


From: Mike Davis [mailto:] Sent: Friday, August 02, 2013 1:32 PM To: Eurotubes Support
Subject: Massive kudos to Eurotubes

Hi Bob,
Long time customer; a few weeks ago I called and had Eddie send me your Mesa Dual Rec Integrated Quad of KT88's and KT66's with the GZ34 Rectifier tubes.

I'm at a loss to describe the tonal characteristics of this tube combination without using several colorful politically incorrect metaphors woven together in a paragraph in order to competently convey the concept. Even at a club volume setting, the tone from my dual rec is astoundingly impressive and almost holographic. I've never been so pleased with my tone since I moved from Marshall amplifiers over to the Mesa Boogie camp. 

Generally speaking; most acoustic guitarists don't care much for, or have little recognition for rock or metal amp tone... however, one of my best friends is an acoustic artist who plays many festivals around the Chicago area; he was thoroughly dumbfounded as to the character and clarity of my Dual Rec! It's a very interesting thing to see... the attention grabbing, rubber necking and the looks on the speechless faces of my guitar peers when simply firing it up! It's like remembering what a guitar amp was always meant to sound like; only we forgot!

Your technical prowess and experience with tube combinations will always be promoted by me; you don't need marketing when your product or service speaks for itself. Thanks again and I'll be calling soon to outfit my Triple Rec with the same KT88 & KT66/GZ34 combo. Yours, Mike Davis

From: Mark R [mailto:] Sent: Sunday, May 05, 2013 9:14 AM To: Eurotubes Support
Subject: Thank You


I would like to take a moment and thank you profusely for the tubes I recently purchased from you. The help you gave to me over the phone as well as the in depth information you maintain on your comprehensive web site offered me the ability to make an educated decision in purchasing. The tube set you sent me for my Peavey Classic 50 are everything you said they would be. Every time I fire my amp up I hear something new, increased harmonics, smoother saturation and great sustain. I play classic rock and metal. I had good tone before, but now I would have to humbly state that it has crossed over into great tone. Very suitable for what I am doing. I also feel that the price is more than fair for the matched/graded set of tubes you sent me.

Thanks for everything you do, I will recommend you to all of my fellow guitar players whole heartedly.

Mark (Savannah GA)

From: Greg G [mailto:] Sent: Monday, March 25, 2013 8:53 AM To: Eurotubes Support
Subject: Re: Tubes 

Installed the lower-gain retube set for my peavey 6505+ combo on Saturday. Gigged with it that night. Huge difference from the stock tubes!! Made the tone really come alive, tightened up the lows and mids and make the distortion much smoother and more musical!! Big compliments from the sound guy. Excellent result!! And fantastic service, had the tubes in hand two days after my order was placed!! Thanks guys!!


From: Joseph - Jay - Comfort [mailto:] Sent: Friday, March 15, 2013 5:10 AM To: Eurotubes Support
Subject: Thanks so much!

Gentlemen - 

I am truly impressed with your service, thoroughness and the love for what you do the shows in how you do it! Michael was very helpful over the phone before I ever ordered and that instilled confidence that I would not be left with a box of parts after the order was delivered.

So, I ordered on Monday and received my retune kit for Fender Twin Reverb on Thursday. The packaging was great everything was present and clearly marked – thanks for the redundant instructions!!! 

I removed the old tubes and installed the new ones as instructed – also set up the bias probe. Initially, I found a bias reading that was way off, then remembered that I had disconnected the speaker to access one of the powertubes. With that corrected, I found a reading of 23.5 once the tubes had warmed – I dialed the bias knob to the counterclockwise and was able to achieve a 35.4 reading, allowed the tubes to get good and burned in and came back to see that everything had settled to 35.5. I left it right were it was. 

After re-assembly and re-warmup, I found a beautiful warm glow from the back of the cabinet. I have a Schecter PT and a Gibson SG that I affect lightly with a small pedal board and a VOX tonelab st that I've been using exclusively, but wanted to hear everything clean. Clean channel, no affects, all settings up the middle – volume 1.5 = NASTY. While I know that the Fender Twin Reverb is a venerable amp, I had no idea what it was capable of! Where before the tube swap you could hear the amp, now I seem to be hearing the music through the amp – so much presence and penetration. Sadly for me last night, the baby and my wife were asleep and I did not have a chance to do much of anything other than noodle around a bit with the clean channel, bright, high and low–gain inputs – impressive! Clean, bright great ring from the single-coils and grunt and grit from the SG that was just outstanding!

I think I'm going to play hooky from work and really dig in this evening and give it the gas. Thanks so much for revitalizing my investment! 

Warm regards, 

J. Comfort

From: Raven Ferrell [mailto:] Sent: Sunday, March 03, 2013 11:28 AM To: Eurotubes Support
Subject: Dude...the tubes! The Tubes!!

Just got done re-tubing using the JJ's High-Gain Set for my Carvin X-100B...Zappa's amps never sounded this good! From one tube just humming along to full-out ALL-GUNS-BLAZING...this amp is alive like I've never heard it before. From now on, I don't talk to nobody but YOU!

From: Terry Browning [mailto:] Sent: Friday, February 15, 2013 6:18 PM To: Eurotubes Support
Subject: THANKS!!!! You guys ROCK!

Bob, I just wanted to say THANK YOU!!! I received the High Gain re-tube kit for my Mesa Boogie DC-10, and couldn’t wait to get in and try it out tonight! However, I first went to Radio Shack and got electrical contact cleaner, exactly as you recommended, and cleaned the sockets as you recommend, because I wanted to do everything right. (By the way, I’ve been playing guitar for over 30 years, and I have never once been told to be sure and clean the sockets before installing the new tubes). That’s a great tip…

Anyway, I have the new tubes in, and I have to tell you, this amp freakin ROARS now! Its absolutely NEVER sounded better, not even the first day I brought it home (well over 10 years ago). Its exactly what I was hoping for…The amazing thing to me is that the gain is so much higher (and just has so much “ummmph” on the gain channel, but the clean channel is still just as clean as it ever was. (I assumed there would be some degradation of the clean sound in order to get the higher gain on the other channel…That wasn’t the case at all…The truly amazing part though is that even though it’s a much higher gain, and just a much stronger sound, the amp actually runs “quieter” (less noise) than it ever has. I’m not sure exactly how that works, but I love it!

I also want to compliment the gentleman who was still in your office on a Friday night, (I forgot his name), but he was very helpful with a couple questions I had re: pre-amp placement, etc... He was very helpful…. You guys absolutely rock! From now on, all my tubes will come from Eurotubes! I’m so glad I found your web-site…I will highly recommend you to all my friends who play…
Thanks so much!

Terry Browning
West Palm Beach

From: jim [mailto:] Sent: Friday, February 15, 2013 6:05 PM To: Eurotubes Support
Subject: Thanks

Good evening to one and all, I got the tubes today I ordered from you ( Dr Z maz 38 gold ), put then in this afternoon, and have been playing non-stop. The tubes make my Z sound better than it did when it was new. Super head room, clear as a bell, and super overdrive when I really stand on it..Thanks to you for these great tubes. I will, indeed, pass on to my friends about Eurotubes..


-----Original Message-----From: Steven Van Nostrand [mailto:] Sent: Tuesday, February 05, 2013 6:58 PM To: Eurotubes Support
Subject: 6V6's in my Hot Rod Deluxe

Hi Bob

I bought some JJ 6V6s from you for my FHRD. I had done every 'internet' mod available and replaced the speaker with a Celestion Vintage 30, all which definitely improved the tone but I was still tone searching... 

Then I popped the 6V6s in, amazing difference. I can hit the sweet spot on any channel and the goofy boost channels that used to sound like a cheap fuzz pedal are now useable and musical...lately I have been keeping the red 'more drive' on all the time, with the gain on 3.

With my Strat or Tele at half volume, it is nice and clean. Turning up to full volume, gives me that tasteful creamy crunch. I have had more compliments on my tone since I replaced the 6L6s than I have owned the amp, purchased new in 1996. 

Eurotubes completely transformed my Carvin Belair and now my Fender HRD is unbelievable! My buddies have even asked to borrow it for 'important' gigs! 


Steven Van Nostrand

From: Lou Tirrito [mailto:] Sent: Monday, January 21, 2013 9:04 AM To: Eurotubes Support
Subject: Re: Tubes

Hello Jay and Co., 

Just wanted to thank you guys for a job well done. Its not often, that I have no idea what I need, and after asking for advice, I get perfect results. The retube kit you guys set me up with for my Mesa Electradyne head installed in a snap (cleaning the tube sockets was a breeze), and the results are nothing less than amazing. I was literally at a loss for what was missing in the sound of this amp, and had gone back and forth with different cabinets and boost pedals, but couldnt 
seem to dial in the sound I was looking for. After retubing, I plugged straight into the amp and played for 2 hours straight, no effects, just volume and tone knob tweaking, and this amp rocks..

Trying to figure out how to get out of work early now,...

Thanks again, and I'll be back..Mesa Mark V is next..

Lou Tirrito

From: H Johnson [mailto:] Sent: Sunday, November 18, 2012 7:13 PM To: Eurotubes Support
Subject: Great improvements to Vintage & Current Fender Amps...

Guys –

I must say I rarely write a review, takes something special to get one out of me…

I recently purchased two of your tube kits for a vintage 1973 Twin Reverb and a current issue Custom Vibrolux. The Twin was a great find, in impeccable condition with the ORIGINAL 1973 tubes (still lighting up and working!). The Vibrolux, while a wonderful amp, spent many hours at a very good tech’s house, getting out all the new circuit board based and poor component quality problems I find new Fenders bothered by.

Installing the supplied kits was a revelation for both amplifiers. Vintage tubes being sacrificed (but hidden away safely!), the Twin came back to its proper huge, warm, forgotten about tone. The Vibrolux, “finally”, displayed an incredible  increase in fidelity, clarity, and warmth that I suspected was in there, having spent way more than enough time and money trying to get all the bugs out. BOTH amplifiers exhibit wonderful tonal balance, are now dead quiet at idle – and then 
will blow your head off at the drop of a hat.

Finally, I might have a justification for obtaining all those more expensive, high end instruments I prefer – the amps both now bring out the true individuality of a Custom Shop Tele, a good Les Paul with P90’s, and a nice American Strat with Lindey Fralen pickups.

And yet, the tubes are probably the least expensive and most cost effective upgrade to my general fanatical interest in good instruments and great guitar sounds. I appreciate the informative nature of your site, wish your business well, inform you that you have it right, will purchase from you again in a snap, and will recommend you to all the other nuts I know in my area… ;)

Sincerely – h.

From: xavier guyot [] Sent: Thursday, November 08, 2012 4:35 AM To: Eurotubes Support
Subject: Re: Tubes

Hey J
I received my full retube kit for my Mesa F30 yesterday (one week from Oregon to France is quite a performance). Thank you for such a fast shipping ! I installed it in my amp and : wow ! It's awesome, my F30 never souded as good ! Pristine ultra dynamic clean sounds (and I play exclusively G&L guitars with MFD proprietary pickups wich can be very unforgivable with tubes, especially preamp tubes, anyway, dynamic is a major thing 

I want from my clean sound) And big chocolate crunch on the lead channel (even my wife did notice !), the low to medium gain on the F30 is finally usable.

I'm totally satisfied with JJ products and Eurotube ! I sure will spread the word.


-----Original Message----- From: rex goodell [mailto:] Sent: Monday, October 29, 2012 12:06 AM To: Eurotubes Support
Subject: mesa maverick

This message is for Michael. I wanted to thank you for your advise on tubes for my Mesa Maverick. The new set up really cleaned up the tones. I especially noticed a difference in the lead channel, although the rhythm channel is much better also. 

Thanks again for caring and for a job well done! Rex Goodell

-----Original Message----- From: David Fox [mailto:] Sent: Sunday, October 28, 2012 7:51 PM To: Eurotubes Support
Subject: Got my new tubes

I just have to say I am thrilled with the new tube set for my traynor amp. What a difference. I went with the most expensive and love the singing "Santana" type sustain my amp gets. My sound is just awesome. I would highly recommend your product to all players and the service was fantastic. 100 percent satisfied and you will always be my tube brand from now on. 

Thank you, David Fox Scottsville, Kentucky

From: Dale V [mailto:] Sent: Sunday, October 07, 2012 6:12 PM To: Eurotubes Support
Subject: Thanks

I purchased the Low Gain Option to retube my stock Delta Blues. With your assistance, I could not have made a better selection. I now have a pristine clean channel AND the gain channel and that translates into a wider range of possibilities. I just wanted to say thanks.

All the best,


From: Bob [mailto:] Sent: Wednesday, September 19, 2012 5:51 AM To: Eurotubes Support
Subject: Re: JD30T jack daniels (peavey classic 30)

Good morning J’ and everyone at Eurotubes. I got up this morning feeling that I should write you a huge thank you for your recommendation on the JJ tubes for my Jack Daniels JD30 (Peavey Classic 30) combo. All I can say right now is WOW!!! 

I received your tubes and put them in yesterday afternoon, plugged in my 60s road worn strat, dirty channel, and four hours later I found myself still floating around in outer space. It would have been much longer but kids came home from 
school , the wife from work and I hadn’t even thought of what was for supper yet, I usually have supper ready on my days off,lol. Anyway I wanted to say that I’m glad I changed my mind about selling this amp and going with a tube change instead, J’ recommended a matched quad of JJ EL84's and three ECC83S's (one with a high current output for the Phase inverter) and I gotta say that this completely changed my amp, and even my playing for that matter. What a huge difference for the better. 

Thanks J’ and everyone at Eurotube for getting my amp off it’s deathbed. Oh Yeah, one question: what are in these tubes that cause me to see all these musical notes floating around in the air?

From: scottwg [mailto:] Sent: Wednesday, September 12, 2012 6:14 PM To: Eurotubes Support
Subject: Retube kit

Once again I am supremely impressed with the JJ tubes from Eurotubes! If you own a Peavey XXX head you NEED to install KT77's. After a year with JJ 6L6GC's in the power section I decide to try out the KT77's, just looking for something a little different. 

All I can say is WOW, I'm so glad I took the chance! So chunky and crunchy, with much more clarity in my opinion, it was exactly what I was looking for! HUGE metal tone with the gain set at just below 9 o'clock, hardly any at all! I got a standard retube kit with a high gain ECC83S in V1. I have PERFECT tone coming out of my Vader cab! I f-ing love these tubes so much! Super fast shipping too! Many thanks to Bob and his crew! You still have a customer for life.


From: Goldsmith, William CIV USA USMA [mailto:] Sent: Wednesday, August 08, 2012 9:36 AM To: Eurotubes Support
Subject: A very satisfied customer...

To Jay Haygood and the Eurotubes Staff, Ordered a complete set of JJ’s (2 EL84’s & 4 12AX7’s) for my Mesa Boogie F30 amp. Bought the amp used about 8 months ago and it had Mesa tubes in it. I play in a weekend warrior 5 piece commercial group and noticed that I recently had to gradually turn up the volume to 2/3’s of max along with hearing a lot less clarity. I figured it was time to go baseline and order power tubes, not knowing how long the tubes I had in it were in there. 

Called Eurotubes and spoke to Jay Haygood. He talked me into swapping out all the tubes which was good advice, along with inquiring about what I was looking for in terms of my amp’s performance. Didn’t realize that you could fine tune 
the amp so to speak. I told him I wanted my F30 watt amp to be as clean as it could be, because I use multiple pedals for my overdrive/distortion. I followed your instructions as you presented them on your website and with what accompanied my order. 

This is the first time I ever swapped tubes in my 48 years of playing. I am very happy with the results. We played an outside gig this past weekend, and the amp’s performance has greatly improved. The volume, along with more clarity, sustain, and tone has left me extremely satisfied. My strat never sounded so good. Even my bass player with his 600 watt Peavey was impressed with the difference in contrast to what it was sounding like, and how well it cut the mix next to his bass.

Thanks for showing me what a good investment I made when I purchased my Boogie. My rather cheap tube investment confirmed that this amp is a keeper.


Bill Goldsmith

From: Sune Andersson [mailto:] Sent: Friday, August 03, 2012 11:03 PM To: Eurotubes Support
Subject: Just wanted to say thank you...

Just wanted to say thank you for your excellent service!

I ordered some tubes a week ago and got them yesterday! 7 days from the US to Sweden, Europe!!! The tubes I got (For my 1998 Hotrod Deville 410 and my new Fender Excelsior) were great and really lifted their sound!

I use your SRV opt #1 on my Deville and 6V6S and ECC83S in my Excelsior...

Two great amps that got even better with your JJ tubes and your tube damper rings.

It took away that irritating high pitch ringing tone in the Excelsior and gave it a more sweet smooth more usable break up tube dist. It seems that it also gave it a bit more headroom.

Thanks again,
Sune Andersson, Lund / Sweden / Europe

From: Dave Wood [mailto:] Sent: Wednesday, July 25, 2012 2:49 PM To: Eurotubes Support*
Subject: Carvin V3 High Gain Option with 6L6GC's

I just wanted to thank everybody at Eurotubes for their help in my recent purchase of a full retube kit "Carvin V3 High Gain Option with 6L6GC's."

Oh man, what a difference! The cleans are smooth and fat and the distortion is hard and grinding. The bottom end is full, deep and HUGE on all channels. The mids are vibrant and musical. The highs sing on every channel. The dynamics and tone are a giant improvement over the Groove Tubes I had in it.

I followed your instructions and cleaned the tube sockets. My amp now purrs even when cranked up and without static or electrical noise.

Bottom line here is that your product is exactly as described. I based my choice on your online descriptions and a few emails with your staff.

The tubes arrived two working days later.

Thanks for Superb Service

Dave Wood
Hesperia, CA

From: Ken [mailto:] Sent: Tuesday, July 17, 2012 2:06 PM To: Eurotubes Support
Subject: Pro One Bias Unit

Hey Guys -
Thought I'd drop you a quick note to let you know my new Pro One got used today for the first time. It was just as straightforward and simple as claimed. It allowed me to find that one of my amps, one of few Fender Bassman replicas built by Bob Arbogast, was under-biased a bit. I had stuck some new tubes in it and didn't bother to bias it until now. It sounds noticeably more robust after setting the bias up to ~45 ma with 427 VDC. The tubes are Groove Tube/JJ 6L6's which supposedly dissipate 30 watts ea. Thanks for coming up with this unique unit that is so easy to use and available for a very reasonable cost.

Cheers -
Ken Sheldon

From: RICHARD PLEASANT [mailto: ] Sent: Tuesday, July 17, 2012 1:10 PM To: Eurotubes Support
Subject: jj tubes

I had been playing via Marshall amps , for over 40yrs, although my jcm 800 had been sounding so bad lately , I thought it was time for it to retire,, problem was not amp but pre-amp groove tubes (which were newly replaced ), upon your suggestion and replacing tubes with JJ preamp tubes, my amp now has that wonderful Marshall sound once again, so many other amplifiers try to mimick,, with much appreciation,, 
thankyou ,thankyou, thankyou,,,,,richard 

From: Stolzenberger, Tom [mailto:] Sent: Friday, June 29, 2012 8:37 AM To: Eurotubes Support
Subject: Recent Order for my Mav

Jeez, you guys are good. I got my tubes yesterday. That’s 2 days after I placed the order. I was pleasantly surprised to get my tubes that quick. Oregon to Florida is about as far as you can go in this country. That’s great customer service, 
thanks. And that’s to say nothing of the personal attention to my, and my amps, needs. I’m not a name player, but you guys took the time to answer my question about my Maverick and gave me plenty of info to able me to make my choices. 

You gave me what I feel is next level access to your extensive knowledge of how tubes perform and how I could tweak my amp without modifying it. The combination of the gold pin 12AX7’s and the matched 12AX7 for the V6 slot in conjunction with the new EL 844’s are magic in this amp. It overdrives sooner and at lower volumes. 

I’d recommend this to anyone retubing a Boogie Maverick. Ok. I had to crank it ! And it’s just a whole different amp. What’s left of my hair is standing up. I WILL be tapping you for recommendations on my 1965 Princeton (NR) and my 75 JMP MKII head in the near future. But, to say the least, I can’t give a stronger recommendation of your shop. This amp smokes, even in the clean channel. I’d love to talk cap mods at some point. My Princeton may need that done. I’ve been hearing a lot about Sozo Vintage mustard caps. But, that will have to wait a little bit.

Thanks for your commitment to your customers and your love of what you do. While money is always important in business, it’s obvious to me that your shop is manned with personnel that love what they doing. Just Excellent.

Tom S

From: Conrad Engineering  Sent: Friday, June 22, 2012 5:30 PM To: Eurotubes Support

Hello all Eurotube members of the Tube Hall of Fame.

I purchased a Blues Jammer amp from a fellow who purchased it from one of my customers. When the amp came in I put the amp on the Oscope and I've never seen such a terrible wave form. The amp had been violated with a weird assortment of tubes namely 2-GE 12AX7's, Jan Phillips 12AT7WC, Sovtek 12AX7LPS, 2- Tung-Sol 5881, JJ 5AR4.

I First replaced all the preamp tubes. Much better but still had a weird wave form. Replaced the 5881's with JJ 6L6GC's – Yea, perfect. Improved performance and output swing. The only tube kept was the JJ 5AR4.

JJ all the way, baby!

Conrad Sundholm
Conrad Engineering, LLC

From: James Wyre  Sent: Sunday, June 24, 2012 8:13 PM To: Eurotubes Support
Subject: RE: Tubemeister 18 tube replacement

Please feel free to use this as a testimonial and edit it as needed. 
After replacing the Hughes & Kettner Tubemeister 18 Head tubes with standard JJs, I’ve definitely heard improvement. I wasn’t worried about a warranty as the amp is used so I went right after it with a Phillips head. To help others retubing theirs, you will have to take the 4 screws off of the end ‘handle’ square plates as well as the back screw on each handle itself. 

It can be a bit tricky to fit back together since the top metal plate comes off. I just worked them back in and only partially screwed in the screws on each end and then finally tightened all of them alternating sides after I was done with the change to get it to fit back together nice and tight. A flashlight helps to make sure certain things are lining up. 

The good news is that the tube retainers are super easy with the preamp wires pulling forward and down and the power tubes being simply spring held. I used the contact cleaner and the old gentle lovemaking on the tube sockets as per the instructions and everything worked perfectly. Of course, it the bias needs no attention because it's cathode biased. The Chinese stock tubes (12AX7B marked China with a 9 in ink on the bottom) in amps are supposedly better than they were years ago, and did seem a bit better than previous stock tubes, but they still had a rather sterile clean channel and some fizzy (in a bad way) highs on the distortion channel. 

The rock and blues mid-range is much better after the tube change and metal now sounds like it should without a fizzy high and I feel like the bottom end has tightened up allowing more abilities there (like better palm muting for heavy stuff). The already good ‘singing’ quality of the amp has also been improved as has the ability to roll the volume off and get cleaner tones (volume changes now do this even on the boosted lead channel up to a point). I like all styles including metal and I think there is so much gain on tap in this unit that getting higher gain tubes seems unlikely to be necessary. 

You can overdrive the frontend a bit with something if you’ve just got to do something crazy. The unit also takes effects better with more headroom and less feedback although you will do best to use the effects loop on the 18 rather than mess with going straight in due to the complex switching they do in order to get so much gain from 2 12AX7 and 2 EL84 tubes. It will be interesting to see if they truly managed it without solid state clipping, it feels very tube-y. I’ll also be interested to find out on this unit how they did the wattage attenuation. The unit gets plenty hot, so make sure you always leave it where it ventilates ok. I run it flat out much of the time. 

Thanks, I’m continuing to only get my tubes from Eurotubes!

James O. Wyre, II
Attorney at Law

From: Ron Mays [] Sent: Saturday, June 09, 2012 8:30 AM To: Eurotubes Support
Subject: wow

Hey Bob, Thanks for your tube recommendation, my Fender super 210 never sounded so good, never, really! I mean freakin awsome breakup like not crunchy but crispy and smooth, and single note chime and liquidity!

Again, thanks

Ron, Mays Landing NJ

From: Dean Griff [] Sent: Friday, June 08, 2012 7:04 PM To: Eurotubes Support
Subject: RE: Tubes


Got the tubes today. Fast shipping & handling. Nice! 

The E34Ls are just as describe. 

"The JJ E34L's provide a deeper low end and are more aggressive and punchy than an EL34. The E34L is tighter with slightly more headroom and power with a more aggressive crunch, a very articulate British tone."

I like the fact the tubes are a matched Quad set. Balanced power tubes performance between 50 & 100 watts operation. Mesa never offer that for there over priced tubes, only pair sets.

The E34Ls sound great!

Thanks, Great Customer Service.


From: Andrew Jeffers [] Sent: Tuesday, June 05, 2012 10:40 AM To: Eurotubes Support
Subject: Re: Tubes & bias probe

Hi, I installed the tubes last night with absolutely no troubles. Just thought I'd touch base and leave a review for the site.

I installed a quad of 6L6GCs and a trio of matched and balanced ECC83Ss in my Mesa 50/50 power amp which I previously modded for adjustable bias. Using the Eurotubes Bias Probe was a cinch; it really made easy work of biasing the amp. 

The key audible differences between the new JJs and the Ruby 6L6s/Sovtek 12AX7LPSs I was using before are that the JJs have a stronger low-mid punch and much more focused highs--big and fat. Everyone at Eurotubes is extremely knowledgeable and helpful, and what I love most about the company is that you get an extremely consistent product for a great price.

Thanks again!

From: Lucas Stricker [] Sent: Friday, May 25, 2012 6:59 PM To: Eurotubes Support
Subject: Re: Tubes

Hello Jay. 

Just wanted to give you an email back about my tubes. 

I recieved them around noon on Wednesday and I put them in and they sound absolutely amazing. Great prices, great service and great quality. What else could I ask for?! 

Thanks again.

From: JKLOTZ [] Sent: Monday, May 14, 2012 3:52 PM To: Eurotubes Support
Subject: Thanks

To whom it may concern;

I recently contacted Eurotubes seeking info on a full retube of my Orange AD30 twin channel. Michael sent me several e-mails anwsering all my questions in great detail. I decided on one of his suggestions and purchased 
the tubes. I would like to extend my thanks for a great experience and for an amp that sounds perfect to my ears. Mike did a great job. I will use your company again and suggest to others to check you out. 

Mike Klotz 

-----Original Message----- From: Luiz Felippe Santos [] Sent: Thursday, May 03, 2012 4:33 PM To: Eurotubes Support
Subject: Awesome sound!!!

Hey, Bob! How's going?

I'm emailing you to let you know that the Classic 20 Low Output kit that I bought from you guys sounds amazing!!!! Sounds just like you described! 

My "Little Beast" is screaming with joy, hahaha! 

Thanks a lot for everything, man!

Blest regards from Rio de Janeiro

Luiz Felippe Santos

From: Jerry Baldy [] Sent: Monday, April 23, 2012 4:55 AM To: Eurotubes Support
Subject: Fender HRD 6V6 tubes

Hey Guys

This is Jerry Baldy I just ordered (4/18/2012) and installed the 6V6 tubes and ECC83S into my Fender HRD and it sounds amazing !! 

I first purchased GT tubes (elsewhere) as they were the Fender recommended replacement, and was very disappointed, they were noisy,harsh/trebely and had a low tone buzz. I researched to find out if something else could be wrong with my amp and in the process found you guys!!

I talked with Eddy on the phone and really want to thank him for his help !!

I love my amp !! It has never sounded this great !!

I am also going to soon be purchasing the 6L6 tubes just to hear them as well

I use this amp in my studio, so having both sets of tubes could really give me more options!!

I will be sharing your info with all my muso buddy's and clients !!

Thanks !!

a very happy !!

Jerry Baldy

From: Warren M [] Sent: Monday, April 09, 2012 8:37 PM To: Eurotubes Support
Subject: Thanks for the new tubes!

Hi There,

I just wanted to drop you guys a line and thank you for the new tubes for my Vox AC15HW1X that I got recently. I got a retube kit with EL844s and a new rectifier tube and i'm blown away by how much better this amp sounds now. One of the factory power tubes packed it up and I picked up some EL84s (not JJs) locally but they really ruined the amp for me. I was on the verge of selling it when I decided to order some JJ's for it, having had great luck with the gold pins I got from you for my Engl Thunder. I couldn't be more pleased with the tone from the EL844s. 

I love the earlier breakup and singing quality of the tubes now. They didn't really knock down the volume any but getting that fabulous Vox chime has never come earlier or easier on the top boost channel of that amp. The amp has this lovely bloom to it now and is so much more touch responsive. 

Thanks again for the great product, great service, great communication and great amounts of tech info on your site. I'll definitely be ordering from you again in the future.



From: [] Sent: Friday, April 06, 2012 5:28 PM To: Eurotubes Support
Subject: Re: Mesa Tripe Rectifier.


Wow!!!!!!! That all i can really say. I received the new tubes for my mesa triple rectifier today. Plugged them in right away. I went with the integrated sextet of KT88 and KT66. An ecc 803s v1, ecc83s in v2-v4 and a balance phase inverter in v5. 

Where do I start? My main want was a fenderish clean. Have always loved the jj 6l6, but you were right and that glassy sound is gone. My clean sparkles now. I used no effects at all and I was very happy. On my Les Paul I have always rolled the volume back and used the neck PU.. Wow middle position on the LP is amazing. Almost acoustic. I am the most happy I have ever been while in channel 1. I even used pushed mode rolling volume back. More usable mids. On the amp I rolled back the lows and it was sweet. 

I have generally found channel 2 useless. I only used it for a step down for channel 3 in modern. Let me tell you what. remarkable! Even more so than channel1! I love the vintage mode in channel 2. Ripping van halen, to zeppelin tones here. I was even playing a lil dokken in modern mode. Has a real Marshall sound. Channel 2 is now a gambit of tone variations. 

Channel 3. Animal! I actually dialed the gain way back here. Now all I used was my 212 cab with 1 v30 and 1 g12h 30 watt so I wasn't cranking, but man the sound is huge and clear. Has that mesa chug, with huge punch and clarity. Solos rip instead of being a lil muddy. Bob I have used JJ's in several triple rec's, 5150's. But man this is flat out incredible! Thank You so much for the work and study you have put fourth so us tone rookies can be happy. 

Incredible tone!!!! And man that triple rectifier is full of tubes now and glowing like a light bulb. Thanks again Bob. If my spelling was a lil off I apologize. This phone keyboard kills me. Lol

In tone bliss

Russ, MesaT-Rec-Russ.jpg (503782 bytes)

From: CHRIS MCCOMBS [] Sent: Friday, April 06, 2012 12:55 PM To: Eurotubes Support




-----Original Message-----From: Michael Johnson [] Sent: Tuesday, April 03, 2012 1:08 PM To: Eurotubes Support
Subject: Thank You


Thanks for the Tubes for my Fender 75. It's never sounded this good. As my wife said, that's Fat. They also make my Leslie 16 sing as well. Awesome combination. Amazing clarity in the low frequency response.

Thanks again,
Michael Johnson

From: JAMES SMITH [] Sent: Wednesday, March 28, 2012 6:03 PM To: Eurotubes Support

Just want to say thanks to eurotubes for their great service. You provided a great product with excellent customer support. Eddie was super thanks again.

From: David Gainer [] Sent: Monday, March 19, 2012 4:48 PM To: Eurotubes Support
Subject: HDRx 6v6


I ordered, got and installed the 6V6's for my Hotrod Deluxe. Set bias at 37.5mv and OMG. This thing sings with either my Musicman Reflex or my new ES339. 

Thankyou thankyou thankyou for my newtone heaven


-----Original Message-----From: Joshua Osmun [] Sent: Saturday, March 17, 2012 3:37 PM To: Eurotubes Support
Subject: Thanks from a satisfied customer. 

Just wanted to drop a line to express my appreciation to your company and to Michael in particular for all the help, patience, and expertise to guide me to the greatest tone known to mankind. You guys rock and you have a fan/customer for life. 

Sent from my iPhone

-----Original Message-----From: Andrew Strazic [] Sent: Thursday, March 15, 2012 5:59 PM To: Eurotubes Support
Subject: Thank You

My name is Andrew. I just put in my new tubes from you guys into my Swart AST and it never has sounded better. Thanks for the tip on the hotter 6V6's. I've got way earlier breakup with the 5Y3 as well and am lovin it. You guys have a faithful customer and I'm rockin my Eurotubes shirt still from years ago. I will continue to purchase from you guys. In the future I will be hittin you up for a hifi tube amp as well. I've never heard one but have been drooling over an amp for the man cave from your reviews on them. 

Thanks a bunch and keep up the great work. 



From: Dale Roberts [] Sent: Saturday, March 10, 2012 10:46 AM To: Eurotubes Support
Subject: bias probe pro

Dear Bob just received your bias probe today . Not only did it get here quick but i have to tell you its the best 103.00 bucks i ever spent! Bias all 4 of my Marshalls and they sound amazing. 

Thanks again great job! Dale Roberts

From: Jeffrey R [] Sent: Wednesday, March 07, 2012 5:40 PM To: Eurotubes Support
Subject: RE: Re-tube advice - Carr Slant6V


I got my tubes today and installed them in my Carr (after cleaning the tube sockets, as instructed!). After I biased the amp and plugged in my Tom Anderson Drop Top, I was treated to some of the best sounds I've heard from my gear. The Carr was great with the stock tubes, but now I can hear what's been hiding in there all along. The JJ's really took a lot of the brittle sounding highs out and gave the amp a smoother sound overall. But, it still has a great rock crunch to it with lots of character. It just sounds much more "there," if that makes sense. It makes me wonder why even boutique amp makers like Carr don't use JJ's as stock tubes. 

Thanks for waking up both of my amps! 

From: Zach B [] Sent: Saturday, March 03, 2012 6:02 PM To: Eurotubes Support
Subject: Re: Tubes

Just wanted to shoot you guys a email, I got my gold pin tube set for my Dr Z Maz 18 JR NR and the difference is night and day!! All the bad grit and fizziness is gone! Power and punch with my Les Paul and Snap and clarity with my Strat. I recommend you guys to pretty much everyone that uses a tube amp. Thanks for the amazing tubes and the lightning fast service!



From: Sent: Thursday, March 01, 2012 5:18 AM To: Eurotubes Support
Subject: Re: DSL100 noise

Hey Bob and everyone,
I just wanted to let you know that my noise issue with my DSL was in fact the old tubes. As soon as i recieved the new tubes i cleaned them and put them in, as per your specs (as always), and everything is quiet as a mouse! 

Thank you very much for your info and expertise. You guys are awesome.


From: Spencer Newm [] Sent: Friday, February 24, 2012 9:50 PM To: Eurotubes Support
Subject: Thanks!

Hey, last week I ordered a pair of ECC81 matched triode tubes for my Electribe EMX-SD, put them in tonight and the horrible noise coming from both channels is totally gone. The tube gain control is actually useful for changing the dynamics of sounds now, instead of just distorting the hell out of everything.

Thanks for saving my EMX!

-----Original Message-----From: Sent: Wednesday, February 22, 2012 11:14 PM To: Eurotubes Support
Subject: tubes and speaker arrived

Hi Bob, just wanted to let you know the tubes and the Weber speaker arrived safely: thanks again for the great service. Regarding the 50W Weber bluedog speaker with pre-Rola doping, I can't believe the change in sound it has made to my Victoria 105 amp. The sound is chimey with a big low end and incredibly responsive: a massive improvement on the Eminence Cannabis Rex I had in the cabinet. So thanks for the advice and pass on my thanks to the Weber people.
Best Regards

Robert V

From: John H [] Sent: Saturday, February 18, 2012 7:45 PM To: Eurotubes Support
Subject: Attn. Customer Service

Bob and company at Eurotubes, I received my complete retube kit the other day for my Peavey Delta Blues combo and I am beyond impressed. The story is: I bought a used Delta Blues off Craigslist and was reasonably impressed with it’s performance until late one night I was wailing away with my Stratocaster at about #5 on the clean channel volume and all of the sudden the sound got really dirty nasty non-musically distorted and then a loud pop and a couple of cracks and the audio dropped way down to almost inaudible. 

So I thought “jeez, I hope I didn’t just toast my speaker” and I figured I better start tube shopping and went to several forums where I found a link to one of your competitors and after looking around their sight, I decided to look elsewhere. I believe it was a Peavey forum where I found a link to Eurotubes and I took a look and thought “ man these guys are serious about tubes and with the complete retube kits they care about convenience for their customers .” so after reading a lot of the info on your site, I selected the blues retube option, placed my order and crossed my fingers. 

I was greatly surprised at the speed of your shipping and even more so the care of packaging. ( I had bad thoughts about my mailman drop kicking my box of tubes onto the front porch). The way you folks pack‘em they could have flown over and dropped them out of the plane and they’d arrive OK. Anyhow, I followed your socket cleaning instructions and installed the tubes and reinstalled the tube guard and fired it up. 

What an experience, the response of the amp has more spank on the clean channel, the tone is creamy smooth and my Delta Blues can now “ooze th’ blues”! Thanks for being there for musicians and actually caring about our final satisfaction. I have therefore sworn a sacred oath to buy only JJ tubes and only from Eurotubes for all eternity. Please also thank Mr. Jurcho for turning out such a fine product for todays market.

Most Sincerely. John H. Cox’s Creek, Ky.

From: Kevin Key [] Sent: Tuesday, February 07, 2012 5:57 PM To: Eurotubes Support
Subject: Thanks!

Just dropping a line to say thanks for the help on biasing my Bassman 50 head, not sure who I talked to on the phone, but he was very helpful and I now have the Bassman up and running like a champ! You guys keep me from having to spend a fortune on amp repairs and keep me stocked with fresh tubes, and always speedy with shipping them out! YOU ROCK EUROTUBES!!!!!!

Kevin Key
Nashville TN

From: Dan Sorber [] Sent: Saturday, January 21, 2012 8:34 AM To: Eurotubes Support
Subject: Tubes sound great!

I finally got to install the integrated quad of 6L6's and E34L's into my Carvin V3 and ran the amp at practice last night. This is EXACTLY what I was looking for! Thank you Eddie! It's amazing I can give you guys some dimwitted description of what I want my amp to do and you can recommend just what I need! Thanks again for the professional, courteous help and top quality products. Oh yea, and SUPER fast shipping!

Oh, and NO 'motorboating'! AND it's properly biased!

From: David B. [] Sent: Friday, January 13, 2012 5:55 PM To: Eurotubes Support
Subject: bias probe

Hey Guys
Just wanted to drop you a quick note to say the bias probe works great. The instructions are easy to follow and the whole thing is totally painless. I got my amp biased up so easy, now I can play around with different tubes to see what I like! No more $30+ charges per bias service, appointments, dropping shit off, etc... I just can't believe I waited this long to drop $25 on the best tool I've ever owned. Thanks!


From: michael wilson [] Sent: Wednesday, December 28, 2011 7:41 AM To: Eurotubes Support
Subject: THANK YOU!!!!!!!

Hello Folks,
Just want to say that I received my HRD "Blues Option #1 Set" yesterday. I put them in this morning and biased up. What a tone machine my HRD is now! I played my 3 P-90 Hollowbody through it and it just sings. My Strats are 
happy too. I've only had an hour playing with the new tubes today. They should be SWEETER when they break in fully. Ran my TS808 with it..WHEW!!! I also just ordered a Weber 12F150 Speaker on Xmas, and cannot wait to hear what this amp is going to sound like. Thanks to EUROTUBES I am extremely pleased! Your customer service and super fast shipping kicks ass. Thank you again!

Best Regards,
Michael Wilson

From: Larry Martin [] Sent: Thursday, December 22, 2011 2:27 PM To: Eurotubes Support
Subject: JJ preamp tubes

Hi guys,

I just wanted to share with you a little tube story that I just experienced. I very recently bought a set of JJ preamp tubes for my Egnater Renegade from you. They worked great, and I was happy with the improved sound. After 2 gigs, the Renegade died, and I have to send it back for repair, and will be without it for our New Year's Eve gig. Bummer, I thought. Well, no problem, I'll just use my Hot Rod Deluxe (still has original tubes), which I thought sounded ok, but not as good, or versatile as the Renegade. 

Then I realized, I'd better get the new JJ's out of the Renegade before I ship it back, in case they decide to replace it, rather than repair it. Then I thought I might as well put 3 of them in the Hot Rod to see if they might make a difference in the tone. Well, they made a DRAMATIC difference! The tone had been bass heavy(almost boomy) on the clean channel, and generally a little uneven(but still a pretty good clean). Now the tone is very even and refined, with reduced bass. I think the response is more touch sensitive, too. And the lead channel is noticeably more even and smooth!

I didn't know preamp tubes could make this big of a difference. Would you expect this type of difference going from the stock Groove Tubes, to your JJ's?

Well, at any rate, I am well pleased, and am looking forward to the gig, using these better tubes. The Egnater may sit, of be sold when I get it back!

Thanks for the great tubes,
Larry Martin

From: jonathan fish [] Sent: Thursday, December 15, 2011 2:19 PM To: Eurotubes Support
Subject: Re: Tubes 

Hey my tubes arrived and I never thought it was possible for a Valve ]unior could sound so great. It went from sounds dead and flat to sounding like it alive and pure and crisp. I can't even really describe it. Thank you so much for the taking the time and emailing me like 30 times answering all my questions for a $22 retube kit. 

You guys are the best.

From: Scott Wartenberg [] Sent: Saturday, November 19, 2011 11:12 PM To: Eurotubes Support
Subject: Thanks for help with my Deluxe Reverb Reissue!

Bob and Jay,
As a long time guitarist, great tone is not an option, but a necessity. I called Eurotubes on Thursday, speaking with Jay, placed an order and got the Fender Deluxe Reverb RI standard tube set the next day. Jay gave me 4 Star customer service on which tubes to use. I've built some JTM-45 Metroamp kits, a Dynaco and an overdrive pedal but am no electronics tech. With your instructions (very thorough, btw), it was very easy to complete a complete re-tube and rebias within 45 minutes. My Deluxe Reverb is a limited edition blonde with the Jensen P12-Q and to be honest it was very harsh (highs) prior to the retube, but now is only slightly so. I'm not sure if I'll clip the C10 bright cap to take it the rest of the way or change the speaker out, but I can say that the JJ tubes alone improved the tone and reduced most of  the high end harshness and fizziness. Please be sure to read the FAQ, watch the video on how to bias an amp along with the precautions (always use contact cleaner, even on new tubes, and secure from the base of the tube, not the glass). 

I've spoken to Bob and then Jay the other day and I was on both times treated with respect and given very useful info. I highly recommend Eurotubes and JJ tubes for your amp needs. You couldn't get better customer service if you tried. These guys "get it" and very importantly, they are musicians and understand your needs as a musician or amp tech.

Eurotubes...slam dunk!


Scott Wartenberg

From: Mike McWilliams [] Sent: Wednesday, November 16, 2011 10:48 PM To: Eurotubes Support
Subject: Satisfied customer

Eurotube folks:

I just wanted to let you know how I pleased I was at the change in character of my V3M Carvin amp following a full change to the JJ EL84 and a combo of gold pin ECC83s in V1 and V4 and a pair of ECC803 in V2 and V3. I think the biggest difference is from the gold pin 803s which really make the amp more creamy and much less raspy. As you probably know, the V3M is a great amp for extreme overdriven sounds but it's very hard to get an in-between sound. The combo of gold pin JJs makes it much more easy to pull it off.

The 803s seem to perform much like a 5751 in that they have less gain and more top end, but nonetheless, they sound great in this amp and makes it much more user-friendly. 

Thank you for your expertise and dedication.

Mike McWilliams

From: Matt B [] Sent: Wednesday, November 09, 2011 12:54 AM To: Eurotubes Support
Subject: Fender Hot Rod Deluxe Full Retube Kit? Great Success!

To the team at Eurotubes,

Just writing to say how amazingly happy I am with the new valves inside my HRD!

When I first blew the stock valves in the amp, I was left knowing I had to try to find valves that didn't completely change my tone, just improve it if possible. Thanks to your helpful advice, I ended up selecting the Full Retube Kit. Admittedly, I placed the order with some skepticism; Are these valves as good as the testimonials say? Will my amp change at all?

Well all I can say is wow! I installed them today (a job made easy by your instruction video) and I was blown away. My tone is so much better than before. While it has all the same characteristics as before, it is now RICH, WARM, and DYNAMIC! The amp has come to life! The new valves paired with an Eminence Cannabis-Rex speaker is a match made in heaven; warm, buttery and mellow.

And the fast shipping, great prices, courtesy emails/great service are all just an added bonus.

So thank you very much, we'll be dealing with each other again!

Cheers from Australia!

From: Eric Royals [] Sent: Monday, November 07, 2011 9:09 AM To: Eurotubes Support
Subject: Happy Customer

Just wanted to thank you guys for another great tube recommendation for my amp. I play through an Egnater Tweaker 15w (head through an over-sized Mesa 1x12 cab). After learning that the Tweaker is cathode-biased and you can swap out different power tubes, I got on the phone with one of you guys at Eurotubes. I described what I wanted out of my amp--a tight, crunchy "British" tone. So I was advised to try out the E34L tube. Love it! I am very pleased with the tone I'm getting! So thanks again for the recommendation! 

And thanks for taking the time to talk with me and help me find what I was looking for! 
Eric Royals

From: toby saltzman [] Sent: Friday, November 04, 2011 5:15 PM To: Eurotubes Support
Subject: Re: Tubes for Hughes & Kettner Coreblade


I received my tubes in the mail today. After cleaning the tube sockets with some contact cleaner, I plugged all the tubes in carefully, saved the old (well, not old but currently unused) tubes in the boxes, and fired the Coreblade up. I let her sit for several minutes just to make sure everything was good to go before plugging in and flipping the switch from standby to stun. Luckily for me the Coreblade has a self-biasing power monitoring system so I didn't have to worry about messing with that portion of tube changing. 

Man, just like the tube kit for the 5150, the difference was instant and very noticeable. Fat, smooth high end, thick, juicy mids, and punchy (even more than before, the Coreblade is one vicious amp!) low end came roaring out of the speakers. It's incredible man, those JJ tubes turned a great amp into an absolutely incredible amp. I couldn't be happier and I'll continue to keep stocking JJ's in my 5150 and now my Coreblade. 

Many thanks to you and your kick-ass staff at Eurotubes!!


From: Parts [] Sent: Wednesday, November 02, 2011 2:59 PM To: Eurotubes Support




From: Douglas L [] Sent: Sunday, October 23, 2011 10:06 AM To: Eurotubes Support
Subject: RE: 76 Fender

Well guys, thanks to your website and FAQ's and the videos on there along with the bias probe and instructions I have just serviced my first amp! I retubed and biased my 76' Fender Twin Reverb and I could not be a happier camper right now! I am in love with my Twin again. I have always thought this would be a hard and painful job but now I am ready to do another one! 

Rock on! My amp just came alive and sounds so good now. I woke up this morning and after stalling for a week or so I just sat down and did it. Thanks to all the great people at Eurotubes I am a customer as long as you are in business! Now I'm gonna get some swag to brag!

God Bless!

From: Jay Filippone [] Sent: Wednesday, October 19, 2011 3:49 PM To: Eurotubes Support
Subject: Just A Thank You Email

Hi Bob & Jay:

Just wanted to say thanks for your great service and of course, tubes (EL84 and 803S) , over the last couple years. And you guys do it with such reasonable prices, coupled with great sounds. I still stand on my soap box for anyone who listen to me about the great 803S gold-pin.

Best Wishes,
Jay Filippone
from "nearby" Federal Way, WA

From: garry hanna [] Sent: Monday, October 17, 2011 8:39 PM To: Eurotubes Support
Subject: thanks to michael and the whole crew

I was in yesterday getting tubes for my blues junior, remember me? I just wanted to let you know that I am as happy as could be with the set up, I am getting the David Lindley "fender Super, dumble mod" sound I like with almost no searching for it required. 

I was using the volume set at screaming high levels and choking back the master to match the level of my stereo system, now I can get the same tone at mid volume and I can actually open up the master and get some use out of the power section. This amp could play clean and match a drummer for volume, or break up all sweet and thick at the lower (conversation possible) levels I play at. 

I am a happy guy in a tonal kind of way, thanks again, and know you have my business and will refer people to you with total confidence. Nice call, job well done.

-----Original Message-----From: Chris Smart [] Sent: Tuesday, October 04, 2011 9:05 AM To: Eurotubes Support
Subject: Testimonial For Your Site


"The tubes and the customer service are both first-class! As a lifelong audiophile and tone junkie, I really appreciate how Eurotubes takes time to select the best tubes for my various hi-fi and guitar amps. Not only that, but someone is always willing to answer my many questions on the phone. Highly recommended!
Chris Smart, CTS Mastering

From: David Kirkpatrick [] Sent: Monday, September 26, 2011 6:57 AM To: Eurotubes Support
Subject: Thank you!!!

I wanted to write a quick note to thank you guys for your help and great service with the re-tube kit for my Hot Rod Deluxe. 

I had purchased the amp used and knew that it needed some TLC. The clean channel would start to break up when you turned it up to 2 and the drive channel was, how do you say, sort of out of control. The sound was harsh and just not very musical to my ears. So after some poking around the internet for information and coming across Justin Holton’s page, I was able to then link to Eurotubes. 

Thursday morning I called and spoke with Bob for about 20 minutes explaining what I was experiencing and how I was unsure what kit to purchase. He was very helpful thorough in explaining all the “ins and outs” of the different re-tube kit options and the “pros and cons” of choosing one over another. His thoughts were that the standard re-tube kit would probably be the best overall choice for the sound I was hoping to achieve. His comment was that I’d absolutely see a marked difference in sound and performance with the new tubes.

So I ordered the tubes on Thursday and they arrived cross-country to the East Coast Saturday. I watched the extremely helpful videos on the site, cleaned the sockets, installed the tubes and biased the amp (at 70mV to get the max headroom). 

I must say that I was completely overwhelmed by how great the amp sounded. Bob had been right on the money with his comment about the sound and performance. The clean channel is very clean with the beautiful chime you’d  expect from a tube amp. The drive channel now sounds smooth and musical. I couldn’t be happier.

So thanks again to the gang at Eurotubes. Your products (JJ Tubes) and service have made me a believer.

-=-David K

-----Original Message-----From: [] Sent: Friday, September 16, 2011 3:45 AM To: Eurotubes Support
Subject: RE: Mesa Boogie V twin pedal.


My Mesa Boogie V-twin came ALIVE! More tone that it ever had before. The gold pin ECC83S’s SING! Smooth rich and beautiful sustain. Thanks again for tuning this mud tone into a thing of beauty. 


From: richj66 [] Sent: Wednesday, September 14, 2011 12:32 PM To: Eurotubes Support
Subject: Thanks!

Hey, I just want to thank everyone Eurotubes. You guys are AWESOME! After putting your KT88 complete retube kit in my Marshall 2203 head and re-biasing it, it now sounds like it came straight out of HELL! Seriously - it kicks ASS now!!!! WOW!!!!!!!!!!!!!! 

Those tubes are killer, and you guys ROCK! Also - your "how-to" videos and all the info on your website is extremely helpful and much appreciated, as well as your awesome customer service! 

Thank you so much,

- Rich J.

From: scottiew [] Sent: Monday, September 12, 2011 7:15 AM To: Eurotubes Support
Subject: Retube kit

I bought a Eurotubes high gain retube kit for my 5150 combo about two years ago, what a huge difference that made to the tone of that amp, and I mean HUGE!! I had never really liked the sound of 5150 amps before but I took a chance on the combo because of the great price I found it for. 

I came across Eurotubes while researching on how to get the best tone out of it without any mods (I also installed 2 new Eminence speakers). I was so impressed with the JJ high gain tubes that I had to put them into my newest cheap find, a XXX head. 

Once again, HUGE difference in tone!! The power coming out of my speakers is just amazing! I'll never stray from these tubes, simply the best!! Many thanks to Bob and the rest of the crew! Scott

From: BRYAN SAMB Owner [] Sent: Saturday, September 03, 2011 4:36 PM To: Eurotubes Support
Subject: Re: Attention Bob or Jay-Fosgate info for my tube purchase

Hey Bob,
I got the tubes AND the Fosgate phono stage today. To top it off I more then doubled the already good quality of my phono cartridge. My God, this sounds phenomenal! I wanted to thank you for the advice on the gold pin JJ's, I 
appreciate it. It means a lot to me to have someone tell me what I am thinking of buying tube-wise is a little too much for my applicateion and that I don't need to spend the extra money on matched and balanced tubes. That tells me you truly care about the right application and happy customers, not just making an extra buck.

I can only imagine what this setup will sound like with a few hours put on the gold pins and the new cartridge................I will know later this weekend, because this thing is playing long into the night tonight.


If you ever have a hi-fi guy that needs convincing about your tubes from a happy customer, send him my way, I will enlighten him.

Thanks again,

From: Rick Vester [] Sent: Thursday, September 01, 2011 7:26 PM To: Eurotubes Support
Subject: RE: Customer Order: 39537

Hey Bob,

The new tubes arrived today (Peavey Valveking Highgain kit). I had time to switch them out before rehearsal tonight, and let me tell you, my amp sounds amazing. The tone, clarity, and the response to pick attack have all improved to the point that even our drummer commented on how good it sounded. Our bass player was floored and commented that he could hear “more” of my playing and was in love with the tone.

Thank you very much putting together such a great package at a really great price and for providing terrific service.

-Rick Vester

From: Matt Wright [] Sent: Wednesday, August 31, 2011 7:49 PM To: Eurotubes Support
Subject: Thanks

I recently purchased a new Vox AC-15c1. I know its not the cream of the crop when it comes to Vox, but it gets the job done. However, after a week or so of playing on it and trying to get that perfect tone, I couldn't help but notice that something was lacking. 

Hopped on to your site and ordered a set of JJ preamp and power tubes for it, and all I can say is "WOW". I'm not an expert guitar player nor am I an amp guru, but I know good tone when I hear it. You offer an excellent product at a perfect price. 

Thanks for getting my amp where I wanted it. You will see business from me again, and I'll be telling the other guitar player in my band to check out your site. Thanks again.

Matt Wright

From: Scott Bailey [] Sent: Wednesday, August 31, 2011 3:54 PM To: Eurotubes Support
Subject: Re: Tubes 

What the hell happened to my amps?!!
They went from mediocre and crappy to fun and amazing! Seriously, I wouldn’t have thought that these tubes would make such a huge improvement!

My Fender Hot Rod Deluxe III finally does its name justice. Both channels have dramatically improved articulation. And that ridiculous rattle is gone. The clean channel is clean and powerful with a great range from warm to bright. The drive channel has a nice Blues to Rock grit that it should have had in the first place. This channel is now usable! Overall, I couldn’t be happier - This Fender is indeed a Hot Rod now! (A little corny, I know.)

Then there’s the little Vox AC4TV. Originally this amp was like an ice pick in the ear drum. I was rather disappointed with it and didn’t even use it much. With the tube change it has a much sweeter tone and maintains the Vox chime. It’s now a blast to play...mellow or cranked up...and great with a tube screamer!

Thanks for making my guitar journey more enjoyable and for helping me get the most out of my investment!

Rock on!

Scott Bailey

From: Paul Scovil [] Sent: Thursday, August 04, 2011 9:12 AM To: Eurotubes Support
Subject: Thank You 

Just a quick note of thanks for the on-line and phone assistance.

I decided to experiment a little with my Marshall Haze 40 and installed the gold pin and 6CA7 option. Outstanding result for my playing style of blues and classic rock stuff. 

I also have found this combination seems to give me a wider selection of tone without using the attenuator I usually use. (Which also allows me to access a purely clean sound when needed without a lot of adjustments, especially nice when playing out.) This little Marshall has become a staple for hauling around to gigs, especially nice for a ol fart pushing into his late 60's. 

Thanks again.

Paul Scovil

From: [] Sent: Tuesday, July 26, 2011 8:23 PM To: Eurotubes Support
Subject: goldplated ECC83S TUBES

Hi Bob. I received the gold plated ECC83S tubes and installed them in my JSX. I thought you might be interested in some feedback about the tube's performance.

I frequently record the amp direct recorded through a speaker simulator; I can really hear the sound of the amp in great detail. The gold plated tubes make a very noticeable effect. Typically, the treble pots on the JSX's distortion channels are extremely buzzy / fizzy even when set fairly low. The gold plated tubes virtually eleminate this quality (in comparison to a standard JJ ECC83S) and made the treble much more usable through its full range. I would wager that this tube is excellent in tube distortion pedals like the Tone Bone Hot British pedal (which can sometimes be on the gritier side of the distortion spectrum) and others. I am pleasantly surprised at the improvement that this tube is. Great tube!

Chris P

From: dan swanson [] Sent: Saturday, July 23, 2011 1:32 PM To: Eurotubes Support
Subject: Re: Tubes

Thanks for the fast shipping - first retube ever... went well. I followed your instructions: unplugged, sprayed, and plugged. Everything went perfectly, and my amp (5150 Combo) sounds amazing. Now, I want my neighbors to leave so I can bring it up past 1! 

Thanks and take care.

Dan Swanson

From: Kurt F [] Sent: Saturday, July 09, 2011 11:07 AM To: Eurotubes Support
Subject: WOW thanks

I was there yesterday Friday June 8th and picked up a set of tubes for my DR Z Mas 18nr. I have to say that this is a big improvement over what I had. The tubes I had were getting old and I didn’t realize how much change had 
occurred. It’s seems I have more gain too which is always appreciated and the clarity of the notes and sustain is better. 

Thanks again for your help and finding a fuse for me. I will make it to the Shack and obtain some more for the future. 


From: danny martin [] Sent: Friday, July 01, 2011 6:55 AM To: Eurotubes Support
Subject: You guys are the best

Bob: Once again you guys hit it out of the park. I want to thank you for your prompt response for my dilemma. You diagnosed my problem with my Marshall TSL 100 and suggested a retubing would cure what ailed it. I was concerned about the timeline to get the tubes and complete the work before my next gig. 

I received my tubes within 2 days and had the time to install and rebias my amp in ample time to use it at my gig. I thank you and I tell all my musician friends about your service and professionalism.

Thank You

Danny A loyal Eurotube customer 

From: Frank C [] Sent: Wednesday, June 29, 2011 12:23 PM To: Eurotubes Support
Importance: High

Dear Bob,

Thank you so much for your knowledgeable and patient assistance with my retubing project. You couldn't have been more helpful.. or more right!

My 115 Delta Blues has never sounded better after yanking out the Sovteks and replacing them with your EL844s and ECC83s tubes. The sound is beefier and much more dynamic, and even at conversational volume the distortion is incredible, and very musical. The EL844s do exactly what you say they'll do. The happy day approaches when all my amps will have nothing but JJ tubes in them.

You have made a customer (and a friend) for life!


From: Jim Shrock [] Sent: Thursday, June 23, 2011 1:03 PM To: Eurotubes Support
Subject: Thank you

Hello to all at Eurotubes,
Just wanted to send you a few lines to thank you for your fast service and realy great tubes, you saved me a bunch of money, I was going to buy some Hi end speakers for my 4-12 cab. A friend said try some new tubes, so three mounths later I found you guys . Two weeks after that I have two of the best sounding amps, I have ever owned in my 40 years playing !! I will never buy a tube from anyone else .

I hope you can keep eurotubes going for a long time because I have two Grandsons just getting into my gear and I'm sure thay will be needing lots of your tubes.

Thank You very much !!

Jim Shrock 

From: ERIC PINCHUK [] Sent: Thursday, June 09, 2011 1:56 PM To: Eurotubes Support
Subject: Saying thanks for great tubes.

To Everyone at Eurotubes,

My Name is Eric and recently purchased the high gain package with 6l6's, as well as the rectifier upgrade, for my Mesa Dual Rec. Over the course of the last few weeks, I've had the pleasure of running the new tubes through their paces, and all I can say is WOW!!!!! The amp sings on the clean channel, its jangly, full and warm and wholesome sounding. The highs are still there but not as harsh and brittle sounding as the Mesa's that were in it. The fun came when I went to channels 2 and 3. The tones these two channels unleashed is unreal. Like aftermarket pipes on a Harley, it made my Dual sound the way it should....... "Mean". 

The instructions were easy to follow, and everything labeled well and easy to figure out. Shipped out extremely fast, and well packaged. I just wanted to say thanks for supplying a great tube, and satisfying another customer. I look forward to doing business again when I retube my Peavey. Thanks again!!!!!

Always Rocking Out,
Eric Pinchuk

From: Dwight Waldron [] Sent: Tuesday, June 07, 2011 9:51 PM To: Eurotubes Support
Subject: Re: Tubes 

Jay, Bob-

The tubes (low output for Delta blues) arrived on Monday, sooner than expected. Thanks for the quick service.

I've been playing the amp a few days now and couldn't be happier. What a difference. The overall sound seems clearer and punchier, the tone controls have a broader effect, and even the previously useless 'boost' switch is now usable. The thing is way quieter now too in terms of noise and buzz. All in all, I'm blown away.

Many thanks again for giving my amp new life.


From: John Hudak [] Sent: Sunday, June 05, 2011 6:22 PM To: Eurotubes Support
Subject: Thank You

Hey Guys, 

I bought a set of tubes for my Dr Z Stangray about a week and a half ago. I just got back from the studio and all I can tell you is that the difference was NIGHT AND DAY! I'm sure you hear this a great deal, but it was like taking a blanket off of my amp. I listened to some of the tracks we had done before I put the JJ's in, and they sounded boxy and really compressed. 

When we A/B'd the tracks from last time with what we laid down today there was absolutely no comparison at all. The JJ's are the bomb.

Thanks for helping me out! I have been burning up EL84's with this amp about every 4 months, so I am looking forward to getting some more tube life out of my JJ's. 

I'll be ordering another set as a backup real soon.

Thanks again!

Johnny Hudak
Richmond, VA

From: Ron Coulter [] Sent: Thursday, June 02, 2011 12:33 PM To: Eurotubes Support
Subject: Thank You! Order #37663 

Thank you for taking the time to assist me in my tube selection for my Mesa Stiletto Series 1. The tubes you recommended (which were NOT the tubes I had planned to buy) sound tremendous in my amp. Your knowledge of my specific amp was impressive, and helped me to make a confident purchasing decision. 

I received them very quickly, which was a pleasant surprise as I had not requested any sort of ‘extra-fast’ shipping. I was able to install and dial-in before our next gig – no stressing out about my amp failing totally (or tonally)!

I’ll be back for more.

Ron Coulter, Guitarist
Phoenix, AZ

From: Cliff Comstock [] Sent: Thursday, May 26, 2011 6:08 PM To: Eurotubes Support
Subject: Customer Review...

To all staff @ Eurotubes,

Thanks you very much for your prompt service. I put your JJ tubes into my Peavey C50 410 & it sounds like a new machine! A nice rich & warm tone. Don't worry... I'll tell everyone about you guys! Keep up the good work! 
I'll be in touch in 10-12 months for another set of JJ's. I'm sold!

From: MICHAEL RIDE [] Sent: Thursday, May 26, 2011 2:54 PM To: Eurotubes Support
Subject: thank you

Hey Eurotubes,

I just wanted to take a minute to say thank you for making buying tubes, for a complete tube noob, easy. I've had many amps in the past 20 years and all of them have been solid state. Recently I purchased my first tube amp. It's a Bugera 6262. I liked the amp and loved the lead channel. The clean channel left a lot to be desired however. 

After installing the standard re-tube kit for my amp. I now believe that it has realized it's full all round potential. Very sweet, smooth clean tones. And the lead channel,I loved, got tighter and fuller than ever. I've now gone from really liking my amp to loving every tone I get out of it. 

Any competent person owning a tube amp would do themselves a great service by purchasing a bias probe and swapping tubes for themselves. You can save some cash and not be at the mercy of someone who may not care about your time, tone, or your tubes. To keep it simple. Thank you for a great product at a reasonable price. And thank you for giving the information to a DIY guy on how to get it done. I'll be back for my next swap.. 



-----Original Message-----From: zach_h_a_r [] Sent: Friday, May 20, 2011 10:47 PM To: Eurotubes Support
Subject: HOLY CRAP!


I got my Weber Blue Dog and low gain blues set of tubes from you guys in the mail today for my HR Deluxe. I just finished installing everything and setting the bias minutes ago. This easily hangs with a Deluxe Reverb or Twin Reverb. 

There was nothing wrong with the stock tubes or the stock speaker, but still a vast improvement. I have <$700 tied up into this amp now and to me it sounds like a $1500 amp easy.

Keep on rockin'!


From: Loderick M [] Sent: Friday, May 20, 2011 7:39 AM To: Eurotubes Support
Subject: JJ's Installed in Blackstar Artisan 15 Initial Thoughts

Hi Bob,

I thought I would take a second and send you an email regarding my satisfaction with the JJ tubes I purchased from you and installed in my Blackstar Artisan 15.

First, thank you so much for the prompt shipping. It was very gratifying to have the tubes at my house last night just 3 short days after they were ordered.

A history of the events that led to my selection of JJ tubes.

When the amp was first purchased, its purpose was to be used on Sundays at manageable volumes when I led worship in the church where I serve. When I did have the opportunity to push the amp to higher volumes, I found that there was a marked absence of overtones and my overall impression of the sound was that it was very sharp. But in contrast, when the amp was kept at low volumes, like I those I used at church, I was able to coax pleasant sounds out of the amp and often I found that I was very satisfied with sound from the amp. So I could see there was a lot of potential and promise in this little combo, it just needed the right selection of ingredients.

Finally, push came to shove for this amp when 2 months ago it began to see expanded (and much louder use) in rehearsal (for reasons already listed and then cited below the amp was not used in live music venues) because I picked up a gig playing guitar for a Texas country bar band whose repertoire varies from true Texas and Nashville-type country to some classic rock songs from the 70’s and (now) 80’s. 

As a reference for usage, our repertoire has only a few songs that require me to use a canonical country type fendery clean tone. In contrast, the vast majority of our music is played with me sending the amp into power tube overdrive. And again, the unpleasant flavor of this amp at higher volumes disturbed me and caused me to look for a solution to the issue. 

To my impressions of JJ tubes; last night before rehearsal I took a moment and replaced all of the OEM Electroharmonix preamp and rectifier tubes and two EL84 power tubes in the Artisan 15; the JJ tube complement I installed was 2x EL84, 1 ECC83S, 1 balanced ECC83S (PI), 1 EF806, and one EZ81 rectifier tube. 

Unfortunately, I did not have time hear the sound of the new tubes before we jumped into practice. However, I did immediately notice that the amp sound was much warmer and that the bridge pickup of the twang king pickup equipped tele did not immediately feedback when the guitar’s volume was up (which was another one of my complaints about the amp and why I did not play bar gigs with it). 

As we progressed through practice, I found the power tube overdrive to be very warm and musical when compared to the previous complement of tubes with plenty of overtones. In addition, I was able to dial back my guitar’s volume effectively to have a usable and musical clean tone which, historically I had not been able to do with the previous complement of tubes because they were so quick to jump into a distorted state. 

When I finally had an opportunity to play solo lines in a song that did not require any extra drive beyond the guitar on 10 and the amp on 6, I was very pleased with the sustain and warmth of the tubes however true joy was found in another song where I used of the OCD for a little more drive through the lead section. It was there that I found my sedate little under-performing amp with its OEM tubes had morphed into a raging JJ tube equipped 25,000 pound gorilla with a huge, fat, singing lead tone. A fact that I can solely attribute to the JJ tubes replacement tube kit because that was the only thing that had been changed in the rig.

In addition, I asked in our first email conversation about a JJ tube kit if replacing the phase inverter tube would have a positive effect on creating the swirl and 3 dimensional aspect to the sound that I found absent in this amp. You told me that replacing the V3 tube with a balanced tube would eliminate dead spots due to phase cancellation. I am very happy to say that you were right. After rehearsal, I finally had a moment to listen to the amp in a quiet environment and I could hear a very the subtle swirl in the sound, almost like a tremolo set very shallow and slow. By contrast my Category 5 Tsunami, which is also equipped with JJ’s, has a very distinct and pronounced swirl with a profound 3 dimensional quality to the sound. So achieving a subtle swirl in the Artisan 15 is a huge bonus for me and I am very, very happy with the results.

Finally, I don’t know if the Artisan 15 will ever make it out to a bar gig because the Category 5 Tsunami is completely my go-to amp, but with the full complement of JJ tubes, the Artisan has become a consideration as a viable alternative.

Thank you so much for your help and thanks again for some great tubes.

Kindest Regards,


-----Original Message-----
From: Alex W [] 
Sent: Friday, May 13, 2011 9:03 PM
To: Eurotubes Support
Subject: RE: Customer Order: 37596

I am happy to report that the JJ 6V6's made a night and day difference in the Double Deluxe amp. The harshness of the Tung Sols has been replaced by a great musical fullness and warmth. I used it at two four-hour gigs last weekend, one low-volume (with the amp miked) and one full-out, with the amp on 9. Killer tone both nights. I was so frustrated with it that I was considering giving up and selling the amp... not any more.

Thanks as always for the good advice and the great service. 



From: Tom Pierson [] Sent: Wednesday, May 04, 2011 1:19 PM To: Eurotubes Support
Subject: Thanks!!

I really enjoyed getting to see the new building this morning, Bob. Eurotubes has certainly come a long way since you retubed that tweed Fender Deville, on the spot, so many years ago at the Rose City Vintage Guitar Show. I was sold on the tone then and there, and spread the word every chance I get. Your staff is so very helpful, accommodating, and knowledgeable. Doing business is always a pleasure, and I always come away more than satisfied with the quality, service, and pricing.

Well done mate!!

All the best!!

Tom Pierson 

From: Raymond Temperley [] Sent: Sunday, May 01, 2011 10:36 PM To: Eurotubes Support
Subject: Re: Tubes

Hi guys,
Just wanna say you dudes ROCK IT!!!
after alot of deliberation an maybe I decided to go with you eurotube boys and I must say....

best decision I made rockin it with your kit. I own a Mesa boogie dual rectifier, I've added all sorts of rack eq's overdrives and even swapped out all my speakers but still couldn't find my coveted sound..... In I drop a high gain KT66 and KT88 tube kit. And instantly my sound DIVES outta my speakers, and my band is asking me to turn down at practice cause it cuts through so brutally!!!

Bob and the whole Eurotubes madmen have just MURDERED my audience with your product.
Keep it heavy boys, YOU ROCK

Raymond Temperley
Voodoo Tattoo, Brisbane

From: Arne W [] Sent: Tuesday, April 19, 2011 7:10 AM To: Eurotubes Support
Subject: Re: Tubes

This set of tubes (mesa dual rec personal fave) are absolutly stunning! I always liked the recto sound but to be honest the low mids has been quite difficult to get right. I never imagined that a different tube setup would change that but it actually did. Now I think the recto gives me everything that made it my favourite amp but with no drawback. Thats really amazing!



-----Original Message-----From: Ben Farr [] Sent: Sunday, April 17, 2011 4:09 PM To: Eurotubes Support
Subject: review/thanks for the prompt shipping of my Peavey C50 410 retube 

Hi, Bob
I just wanted to send you an email to say thanks for the prompt shipping of the full retube kit for my Peavey Classic 50 410...I was amazed at how fast it arrived!

I had been swamped with schoolwork(still am, it's now one week till finals week, lol.), but I finally got enough time to play some more yesterday, and I was still in awe of how much better the JJ tubes made my amp sound!! It sounded more warm, and woody like an old Fender Bassman and when I added more gain with my distortion pedal..It went into Marshall territory in terms of how much punch and sustain it had! 

I am a very satisfied customer....Thanks again!

-----Original Message-----From: Ron K [] Sent: Friday, April 15, 2011 9:59 PM To: Eurotubes Support
Subject: Re: Tubes

Hello Jay

The tubes I ordered arrived here in Lacombe Alberta today, and I installed them this evening. I have a Traynor YCV 20 WR amp that I bought a couple weeks ago and was a bit worried about the tone especially the break up at higher volume. I ordered the Gold Pin Option for my amp and am I ever happy with the sound. I now feel much better about my amp purchase and, the sound!

Ron K
Lacombe Alberta Canada

From: Steve Suter [] Sent: Friday, April 08, 2011 5:59 AM To: Eurotubes Support
Subject: Great Tubes

Hey guys,

Just received my tubes yesterday and installed them in my Traynor YCV 40 amp and all I can say is WOW!!!!!!!! This amp did not sound this good when I bought it new. I purchased the blues option tubes and I was blown away. 

The instructions were easy to follow and tubes were labeled so it was basically a no brainer to install. This was the first time by the way I had ever attempted a job like this. No worries any longer though. Thanks again for a great product. I will definitely be a repeat customer.

Steve Suter

From: Michael Ho [] Sent: Wednesday, April 06, 2011 12:50 PM To: Eurotubes Support
Subject: Bugera V22 Re-Tube Kit

Aloha Eurotubes,

I just wanted to say thanks! The re-tube kit for my V22 was a needed investment! The JJ’s are incredible! Especially the ECC83S preamp tubes. BIG difference from the stock 12AX7’s. The amp has more headroom now with a 
whole lot more clarity and definition. The harmonics that the kit added really is amazing, too. The high gain set, which is the one I got, added just the right amount of extra gain I needed to fulfill my quest for the right tone out of this amp, and the clean channel is so clear and bright… really pops out! 

My other guitarist has a hard time keeping up with me with his Peavey Ultra 112, now! From the factory, it had a lot of compression on the gain channel and too much break-up on the clean. My tech said that it was not biased right, and one of the power tubes were starting to fall, which is a testament that Bugera is a hit or a miss. No worries, now! I can play a small venue un-mic’d, or mic it up and play a huge venue, with enough headroom and power to carry me through the night. It really does sound like a 50 watt combo, now! 

And, of course, the customer service that you provided to me really helped me decide on the high gain set. Eddie was a huge help, and I thank him and all of you for your assistance. My next purchase from you will be a re-tube kit for my Bugera 333. But I am loving the tone out of this amp, plus the fact that it weighs like 40lbs. lighter than my 333! 

My tech, Robert Upchurch from Edgar Audio here in Hawaii also had great things to say about you guys, and that says a boatload coming from Robert! In my opinion, one of the top 3 techs on this island, and I have been to the other 2. If he recommends you, I will go! Thanks again, Eurotubes. You can add me to your list of loyal, lifetime customers. 

Michael Ho
Pearl City, Hawaii

From: Justin [] Sent: Saturday, April 02, 2011 10:19 PM To: Eurotubes Support
Subject: Re: Tubes, etc

Got the tubes just fine, installed them as per your awesome instructions, biased her up, again with great instructions, turned on the HRD, and damn near shit my pants I was so happy. I can't thank you enough for the advice and service. Customer for life!!! 


From: Brendan M [] Sent: Saturday, April 02, 2011 1:49 PM To: Eurotubes Support
Subject: 5150 tubes

Great tubes, Did the bias mod and got the standard retube setup. I'm blown away, it's like my amp took a sinus tablet all the muffled harshness has been smoothed out, very responsive and textured.



From: Steve Pitt [] Sent: Tuesday, March 29, 2011 3:13 PM To: Eurotubes Support
Subject: Re: Quick question

HI Eurotubes

I just wanted to drop you a quick note to let you know of my experiences after ordering some tubes from you guys.

I had a new Blues Junior on order which arrived on Saturday. I had pre-orderd one of your blues Junior Fender kits in anticipation of the arrival of my new amp. They have been sitting in my drawer for the last week or so.

When the amp arrived I made the conscious decision not to change the tubes until I had played with the device for a while to make sure that it was OK. To say that I have had a crap weekend would be the undertstatement of the year. The hiss and noise from my brand new amp have driven me to despair. I have a pro co RAT which I have used forever on my transistor amp and when I plugged it into my new one the noise and hum was unbearable. I have been on web sites and forums all weekend and did not solve the problem.

In despair I had decided that there must be something wrong with the amp itself and decided to send it back. It never once occurred to me that there may be something wrong with the stock tubes! Its a brand new amp for crying out loud.

So tonight just before I packed it back up I thought in for a penny in for a pound and changed the stock tubes for the Eurotubes replacement and all I can say is wow.

Instantly and I mean instantly hiss gone and hum down to recoding level acceptable. And when I plugged my proco RAT in nairy a sound other than the distortion I had dialed in!

I cannot tell you how happy I am with the tubes you supplied. I thought that there would be a difference but I never expected the leap from almost unplayable to the tone I now get.

So I would just like to say thank you for your emails and advice let you use this email as a salutatory lesson to all new Fender Blues Junior owners – Get rid of those crappy stock tubes and get some decent replacements they make a world of difference!

Thanks for all your help and saving my sanity


From: Doug Sheppard [] Sent: Wednesday, March 09, 2011 10:47 AM To: Eurotubes
Subject: Blackstar amps - KT77's

Thought I'd give you my .02 cents...

I bought an HT-60 2x12 all-tube combo, which came with TAD EL34's. I had some Tungsol EL34B's I threw in, (which are pretty sweet tubes, in my estimation - beautiful mids, so, so, bottom end, but really nice sounding tubes). Then, came the E34L's I got from you, and it add some thump, and a little more aggression, but I wasn't blown away with the mids.

Now, we all hear things different, but up next, I finally got a chance to try the KT77's I got from you. Now, granted, I swapped the 70/80 stock speakers, for a Anniversary Heritage 30, & a Vintage 30 combination, but let me tell you - those KT77's transformed this amp into a warm, warm, thumping beast of an amp. I couldn't be happier. 

In short, the KT77's are THE tube for my Blackstar, and I can't recommend them enough, (and have on the forums). THEY KICK SERIOUS ASS!! As does the JJ ECC803S in V1, which has grown on me as the go-to V1 tube in my past 3 amps. It's got a sweetness that the Tungsol 12AX7's everyone's creaming over does not. It's warmer, and sweeter in the mids, if you ask me.

Thanks for all you do for me. 
Doug Sheppard

From: Brian Angiel [] Sent: Friday, March 04, 2011 3:33 PM To: Eurotubes
Subject: Re: Tubes for a Roadster


I finally got the chance to put the new JJ's in my Roadster. The results were phenomenal! The cleans were chimey, and the distortions were clear and without mud or fizz. Note definition is fantastic! and better than on any other amp I've ever used! Even on the highly distorted channels, I could strum a chord and pluck some individual notes underneath it AND hear them! 

I love the sounds I'm getting, and I feel that the newer tubes and the better tone are going to open up many more sonic options. I am very grateful for all the help that you have offered, and I will be coming back the next time I need tubes!

Thanks Eurotubes!!!

From: Daniel Salcido [] Sent: Friday, February 25, 2011 6:18 PM To: Eurotubes
Subject: Thank You!


I just wanted to send a quick thank you out to the person or people that helped me tonight (2/25). I called twice about my Laney AOR 30 - once for the multimeter setting for my plate voltage, and again because I was getting no sound from my amp after biasing it.  Well, it turned out to be my speaker connection (at the speaker's negative post)!  It had become disconnected and once I reconnected it - voila! Sound!

I will say this, though - JJ tubes sound the best!  This Laney sounded mushy in the low and and under defined.  I wasn't sure if tubing this particular amp with all JJs was going to be a good thing - but it ABSOLUTELY was!!!

My first experience with JJ tubes was when I had to trade out my EVH 5150 III amp head (under warranty). Guitar Center ordered me another one, and the second 5153 head came equipped with all JJ tubes - and I noticed an immediate difference!  The tone was just everything I thought the 5153 should sound like.  I noticed that immediate difference tonight when I re-tubed my AOR 30 with nothing but JJs.

IMHO, the JJs bring out the best in every amp I've tried them in. Don't get me wrong, times when I try other tubes it sounds pretty good, but with all JJs it sounds GREAT!  It's THE tone I'm yearning for!

BTW - your customer service is truly SUPERB. You all have responded to my emails and questions about tone and biasing with such rapidness and competence.  Please know that you have my full trust and business - for years to come!

Thank you again!!!

Daniel Salcido

From: David C [] Sent: Tuesday, February 22, 2011 6:28 PM To: Eurotubes
Subject: Tubes & bias probe


All I can say is THANK YOU!! I received my tubes and bias probe for my Bugera 1990 very quickly. Your instructional video for tube biasing is so straight forward and easy. I feel as though I am handy but I applied almost no effort to do this. Thanks for doing all the leg work.

My amp sounds great. I liked it before but the new JJ's cleaned up the low end mud. It is more dynamic and articulate. The bonus is that my rhythm player has the exact same amp and cab as me. So we got to do a amp shoot out. 

My rhythm player will be ordering his set soon.

Much Thanks,

From: john calahan [] Sent: Wednesday, February 09, 2011 5:32 PM To: Eurotubes
Subject: Tubes are good

The KT-88/KT-66 tube set turned my Dual Rectifier into a Mercury spraying, fury of metal. My clean channel is also so unbelievably full and round with perfect clarity without any rack components. In the extreme high gain department the KT-88s deliever the tight organ slashing bass that crushes your cell walls. 

Not only that but the KT-66s bring such a clear crisp mid and high end that scortches the sky. I used to have to EQ my amp for a happy medium between huge bass, and searing highs, but this tube combo provides both at whatever setting. I cant wait to order a set of GZ34s aswell. 

Before the tube swap I was just going to buy a new 4x12 cab but I always have wanted to try new types of tubes, now I know its deffianantly not the cab. All I can say is Bob and his crew know tubes, and I would suggest a tube change before adding any other piece of gear. 

Thanks guys 
cya round.

From: Phillippe [] Sent: Tuesday, February 08, 2011 11:44 AM To: Eurotubes
Subject: Thank you!!

Hey Guys,

Just wanted to send a note your way to let you know that I am one very happy customer!!

Received my tubes yesterday for my Fender Supersonic to replace the factory Fender Groove Tubes. Wow!! What a difference in tone. The vibrolux channel sounds so much better. Before I had the treble all the way down and the bass cranked and it still sounded very shrill to the ears. 

I can actually bring the treble knob to around 4 – 5 and it sounds great. The burn channel sounds really good too. All in all it is a huge improvement over the stock Fender Groove Tubes. Also I have to give you guy’s props for all the information on Biasing. 

I actually biased my own amp for the first time yesterday. Took me about 15 minutes to do. 

Thanks again!!!


From: Frank L [] Sent: Monday, February 07, 2011 5:24 AM To: Eurotubes
Subject: Re: Re-tubing a Peavey Classic 30

Hello Michael,

Installed the new tube set in my Peavy Classic 30 - Eurotubes are the bomb!

I thought the Classic 30's lack of bass, middle and treble range was a function of the amps tone controls- Wrong! It was the bad stock tubes. Now when I turn up the bass, I get lots of bass, same with the other controls. What a difference a tube change makes!



From: Ante [] Sent: Saturday, February 05, 2011 3:17 PM To: Eurotubes
Subject: Re: Peavey Classic 30 replacement kit

Hey, just a quick follow-up. I got the tubes a while ago, installed them and they sound great! Just wanted to say thanks for your great customer service. Had I bought them form anyone else, I would have never known to buy the contact cleaner and all sorts of nasty stuff could've happened. Seeing as this was my first time changing the tubes, your included instructions were invaluable to me.

They arrived pretty quickly and I'll be sure to recommend your store to everyone I know!
Thanks again,


From: Eric Risdon [] Sent: Friday, February 04, 2011 7:55 AM To: Eurotubes
Subject: Fantastic !!!

Hi to all at Eurotubes.

Just wanted to report that I had a fantastic experience because of you guys !!! A couple of years back, I bought a second hand 2005 Vox AC30 CC2X. I found it played OK but with lots of hissing, humming. Like there was a faulty ground...

Thought it was "normal" since I hadn't played on any other one... Then it got worse, it was terrible as I even got some "puffing" (on low notes like the big E string) if you know what mean... Thought about changing the tubes. Heard a lot of good about you guys on a forum.

I live in France but still ordered a complete re-tube. I received the kit in under 10 days !!! Then replaced the tubes and WOW !!! Tried the Strat, then the Explorer at low and volumes... No hissing, humming, puffing, nothing !!! 
Super clean chimmy sound on the normal channel, as it should be. Really warm, jaw dropping full sound on Top Boost !!! Now I know (hear) what a Vox trully sounds like... Man it' beautiful !!! So nice it was, I played alone for two hours (well, the neibourghs heard me for sure...)

So a million big THANK YOUs for the super fast shipment and the great quality of tubes.


From: mark g [] Sent: Friday, January 28, 2011 11:24 AM To: Eurotubes
Subject: Just stuck the JJs in

Hey bob,

Just put in the JJ EL84s and the 12AX7 in the splitter. What a huge difference in the Traynor YCV 20. Louder, clearer, much more bottom end and some of that high end sparkle. Love it! Thanks for the great advice and the outstanding customer service. Count me one happy Christian guitarist. 

I'm recommending you to all my fellow tubists.



-----Original Message-----From: Nicholas Carlos [] Sent: Thursday, January 27, 2011 3:01 PM To: Eurotubes
Subject: Thanks!

Just wanted to drop a note and say your customer service is amazing! I emailed you guys a couple times regarding my amp noise. And you guys weren't hesitant to help, didn't even ask me to buy tubes from you, just genuinely felt like you were trying to help out a fellow musician, you pointed me in the right direction for which tube set to by and when I called on the phone you guys were nice too! Ordered my tubes Monday night and got them today on Thursday afternoon! ( I live in southern Cali ). 

Just wanted to say keep it up!!! I love feeling like an appreciated customer and you'll definitely be getting more business from me and I'm telling all of my guitar playing friends about you! Awesome awesome awesome!!!

Nick Carlos

From: Vinny [] Sent: Wednesday, January 26, 2011 1:06 PM To: Eurotubes
Subject: Thanks


Ok, so I have to start this email by admitting I spent a lot of money trying different tubes over the past year for my MetroAmp 50W Marshall clone. All I had to do is take the advice Eddie gave me a about year ago. I described the tone I was looking for and Eddie recommended JJ ECC83S preamp tubes and the JJ EL34 power tubes. Since I had all JJ tubes in my other amps, I wanted to try something different, so I went on a search buying different preamp and power amp tubes (new production and NOS). 

After much frustration and money spent, I decided that since I am happy with the JJ's in all my other amps why don't I try them in this one. So, I did it and I have to say I am very happy with the tone I am getting. Eddie, Bob, Jay and everyone at Eurotubes, I just want to thank you guys once again for your great advice, customer service and super fast shipping.

Now all my amps are outfitted with all JJ tubes and they will stay that way.

Oh yeah, I know you guys speak very highly of the SED Winged C EL34s, but I think the JJ EL34 sounds much, much better and the breakup and the high end is much nicer.

Thanks again,

From: Karl E [] Sent: Monday, January 24, 2011 12:36 PM To: Eurotubes
Subject: RE: About a Hughes&Kettner Edition Tube

Hi, Eurotubes!
I'm really a sucker when it comes to expectations. I knew little about tubes and the control of the sound that they hold until I just now swapped my own tubes for the very first time. Still I expected - that's me! - alot since I was hanging on forums on the net immensely, prior to this quest of all quests. You delivered what you promissed! God damn; you answered the call! 

My new EL84's gave me exactly what I wanted; that extra cream on the top. I biased it hot (80%) and now I know what 'brown sound' is! The punch 'n' crunch is there and I LOVE IT! I am also so glad that I now know how to change and bias my own tubes/amps. It feels great to be in control of my own tone.

Thank you! I'll be back!!

Kind regards
Karl, Sweden

From: Nathan Carey [] Sent: Sunday, January 23, 2011 8:34 PM To: Eurotubes
Subject: The Benz

I just have to say thanks to Michael at Eurotubes, he spent a lot of time with me on the phone to really figure out what i needed before selling me something. The tubes are in and are pretty much exactly what i needed, plus you can't beat the price!!! 

I ordered a quad of 6CA7 for the power tubes and three different ECC83s for the preamp. The big bottle 6CA7 is perfect!!! I would recommend these to anyone playing an EL34 type head, the cleans are about the same as an E34-L but they are a world better when pushed. They still have all the harmonic complexity of the "34" but have a smoother top, tighter bottom and about 20% less mids which seem to be less harsh. 

For the preamp the high gain ECC83s may be overkill in my GENZ-BENZ, I actually had to dial the gain back from 7 to around 4-5. That being said, the selected low gain for the clean channel is great. It allows me to dial up the gain (from 3 up to 4) on the clean channel so when I dig in i can get some great "bluesy' breakup, or play nice for a smooth bell like clean tone. The gold pin for the dirty channel however, may be the best part of this re tube. It is a little quieter, a little smoother, a little lower gain, and a little more money than a standard ECC83 and it's perfect for this, as Michael called it, "wrecking ball" of gain called the El Diablo. 

Next year when it's time again to retube, I will certainly call Michael again and order from Eurotubes. (I just might get gold pins for the entire preamp though. They ARE, in my humble opinion, that much better)

Thanks Michael and all of you at Eurotubes, Nate

From: MRilje [] Sent: Friday, January 21, 2011 2:04 PM To: Eurotubes
Subject: Re: Tubes 

Hello Jay,

I just wanted to drop a line & say how stoked I am with the re-tube. My AC30 reissue just got 10x better, the tone immediately had more definition and punch while going into the most musical feedback all around 1/2 way up.

But I was most surprised with my '97 AC15. The EL84's brought it back to life & more. For the past 10 years I had used Mesa issued EL84's and have been only mildly satisfied. They seemed to run "cold" if that makes any sense. Anyway, the JJ's (with the higher headroom) woke it back up. And my biggest surprise was that the master volume actually has range above the 1/2 way point. Before it just got flabbier beyond that point. Now it just continues to increase that crunchy chime all the way up.

Thanks again for your help on the tube layout. I will proudly refer you guys!!!

-Michael Rilje

From: budbbc [] Sent: Thursday, January 06, 2011 7:48 PM To: Eurotubes
Subject: Customer Review

Hi Eddie, Jay & Bob. This is Bud Bremner from Vancouver, BC and I recently purchased a low output retube kit and damper rings for my Peavey Classic 30. Long story short, I absolutely love these tubes! The low output EL844’s initially took me by surprise - with my P90 equipped Les Paul Custom wide open, the clean channel was distorting and the amp had never done that before. I called Eddie and he took the time to explain the headroom differences between the standard EL84 and the low output EL844. (Your customer service rocks!)

Now with my guitar at just 30-50% volume, ooh baby this clean channel is so sweet. : ) It gets a bit grainy if you push it but that’s what would happen if you had standard tubes and cranked the snot out of it, which is 
what we like to do right?! Now, with just my volume pot and picking dynamics I can control the amount of warmth I want from the clean channel. The lead channel gain is so smooth, I never knew my guitar and amp could sound like this. My last tubes (GT) were buzzy sounding but the JJ’s are tight, focused and sing with harmonic richness I’d never heard from this amp. Now that I understand the character of the low output kit, man, I’d never go back to standard EL84’s unless I needed the volume for a larger gig. I’m a customer for life!

For those reading these reviews before purchasing, take the time to consider your playing style, playing environment and read the explanations of the re-tube kits for your amp, you’ll be so glad you bought JJ’s from Eurotubes! 

Thanks again Eddie for the education. Cheers!

Bud Bremner,
Vancouver, BC

From: steven wen [] Sent: Monday, December 27, 2010 7:41 AM To: Eurotubes
Subject: Tube order

I recently purchased a mesa boogie dual rectifier roadster full retube kit with the high gain preamp tubes.I just wanted to tell you how pleased I am with the retube.The jj tubes completely blow the stock tubes away. I just ordered two GZ34 rectifier tubes for the amp. I'm sure it will further improve the amps sound.You now have a loyal customer.I will have to get some 
eurotubes merchandise to help spread the word about eurotubes!!!!Thanks 

From: Ray K [] Sent: Saturday, December 11, 2010 1:19 PM To: Eurotubes
Subject: Re: Tubes for Marshall Haze 15

Hey Bob,

Here's a quick update on how the new tube set is working in my Marshall Haze 15 head. I wound up putting the Gold Pins in both V1 and V2 and adjusted the bias to your recommended value of 30mV.

The note clarity and articulation is noticeably better! I even took it all the way up to "eleven" and it held together nicely, with no hint of ugliness. There is plenty of headroom. This amp sounds really good at low volumes as well as higher volumes. I'm quite pleased with this JJ tube set and really appreciate your helpful suggestions!

I hope you and yours have a very Merry Christmas and a safe and Happy New 

Ray K

-----Original Message-----From: Justin F [] Sent: Friday, December 10, 2010 6:39 PM To: Eurotubes
Subject: A Customer's Review

Hello Bob and Eurotubes crew,

I recently ordered a pair of high gain ECC83S tubes for my Johnson Millenium head. I've installed them and I must say that I'm quite pleased with the sound. The other tubes that were in the amp lent themselves to a 
"fuzzy" sounding distortion as you may describe it. 

The high gain ECC83S's are so much different then I imagined they would be; in a good way! They are much more warm and dynamic than I expected. While the gain is definitely there, the amp also has much more of a natural feel to it now than before. 

In addition to giving you my opinion of the new tubes, I also wanted to let you know that I think your customer service is top notch. I had an email letting me know that my order was received and shipping on the same day that I made my purchase, and I didn't even ask! I appreciate your attention to detail, and the details that you provide on your webpage. Keep up the good work! I look forward to doing business with you again! 

Happy Holidays,
-Justin F.

From: Ross H [] Sent: Monday, December 06, 2010 2:43 PM To: Eurotubes
Subject: EL-844's

Bob and Crew,

I received my order over the weekend and have the JJ EL-844's in the amp. All I can say is WOW! I have a crate v33-212 that has always been too loud to play in the house whether with a band or alone. The EL-844's did lower the volume enough to play indoors and really improved the sound. Great cleans plus easy breakup into distortion and took the muddiness out of channel 2. I am impressed.  

Thank you for a great product and excellent service.

Ross H
Yakima, WA

-----Original Message-----From: Kieran G [] Sent: Thursday, December 02, 2010 7:26 PM To: Eurotubes
Subject: Thanks Man!

Hey Bob,

I just received the tubes for my Prosonic, and first thing I wanted to say was your customer service is incredible. Super fast shipping and thanks to your advice I've definitely made the right decision. I went with the low gain "kit" and let me tell you, this amp sounds incredible. The clean channel has all the sparkle and spank that you'd expect from a great Fender amp, and the lower gain of the lead channel is superb. 

I have bought tubes before but never have I seen the absolute attention to detail that you provide with your tube sets, not to mention providing a balanced phase inverter. Another thing I wanted to say is that your prices are beyond fair. I priced out JJ's on other sites and you absolutely crush them all. 

Thanks again,
Kieran G

From: Michael B [] Sent: Thursday, December 02, 2010 11:28 AM To: Eurotubes
Subject: Re: Tubes


I received my quad of EL844 tubes yesterday and installed them in my Mesa Nomad 45 right before band rehearsal. They sound great, and they did knock off a bit of output level, just as advertised. They also appear to be a higher quality product than the Ruby Tubes I replaced. 



From: Roberto Frejat [] Sent: Thursday, December 02, 2010 9:08 AM To: Eurotubes
Subject: RES: Tubes

Thanks for the agility. I also want to tell you that after trying KT88s from two or three other well-known brands I finally got the ground problem I had on my Leslie 122 cabinet by using your tubes. The Leslie worked fine with the 6550s from every brand but when I tried to use KT88s the ground problem Always showed up. Now I got it working perfectly and what a tone these tubes produce.
Thanks for the good work.
Roberto Frejat

From: scotty.s [] Sent: Friday, November 19, 2010 6:52 PM To: Eurotubes
Subject: Thank You

To Bob, Jay, and the rest of the guys and gals at Eurotubes, Thank you. Jay, thank you for the prompt and informative emails bro. Much appreciated. Your product arrived safe and sound and currently (no pun intended) resides in my 6505+. I have never been more happy with my sound. After 2 hours of testing I can honestly say I have reached my goal. This bad boy will be heading straight into the studio after some further preliminary testing and tone tweaks. Thanks for bringing me home peeps!!!! 

Stay cool,

From: Steven Van Nostrand [] Sent: Thursday, November 11, 2010 6:46 PM To: Eurotubes
Subject: A long overdue note

Hello Bob!

I ordered a tube set several years ago for my '96 Carvin Belair 212. When I bought it new, the tubes it came with had no markings and although I liked the amp right out of the box, those 'things' had to go. Same with the speakers that you could throw a rock at and not break... I put in GrooveTubes and thought the amp sounded really nice but still not alive.

After speaking with you about my guitar playing proclivities, which is mostly blues, you recommended, I believe '#35' power tubes for my amp. I had the amp re-biased a bit hot by my guitar playing tech friend and that amp is still my number one tone machine; especially with my Tele w/ Custom Shop '54s. The amp breathes with me and it very responsive. When I play slide, I have been told I sound like a Hammond B3. Still sounds great: still has the same tubes. I have had many compliments on my tone. Thanks.

Steven Van Nostrand

From: Christopher [] Sent: Tuesday, November 02, 2010 10:48 AM To: Eurotubes
Subject: EVH 5150 III

Hey guys,

Just wanted to send out a big thanks for everything. Ordered a full set of 6L6GC's and 12AX7's for my EVH III I got them is 2 days all packed nicely.

Like a night and day difference. I couldn't believe it was the same amp. I had to pull back on the gain and volume.

I crushed for 3 hours solid last night on 6. My fingers are sore and my ears are blown. Seriously a happy camper.

thank again guys.

From: David Hirsch [] Sent: Monday, October 25, 2010 3:00 PM To: Eurotubes
Subject: HRD retube


Just wanted to say thank you for the quick turnaround on the bad pi tube. Installed the replacement and the amp fired up perfectly. This being my first re-tube of any amp ever I have to say your site and service made it as painless as possible. I am really most impressed though that a simple tube change can make such a big difference how an amp responds. This tube set HRD blues option #1 did something I never in a million years would have believed you could do and that is give me a useful second channel on the HRD. Mine was so miserably bad I figured it was just inherent to the amp design and nothing could fix it. I am delighted by the 
results on the second channel alone. I now have four distinct tones that I don't have to mask in any way. In order they are:

1. Clean channel. Still great. Slightly warmer than the Sovtek but with increased touch sensitivity. You can tell when you have to change strings now.

2. Distortion channel. Wow. Gone is the fizzy, biting, thin and useless drive channel. In it's place is a great blues grind that will moan with harmonics and bleed into feedback if you want it. 

3. Need more, hit the more button. 

4. EHX English muffin with 2 jj 12ax7 into the clean channel. Holy shit. I immediately launched into some Dimebag riffage. Gain on the pedal is at 12oclock. Half. I'm not into death metal but I imagine with the right pickups it could be done. Which leads me to say I haven't even tried a single coil yet. A veritable cornucopia of tones. My deal since I started playing 25 years ago was plug into an amp, any amp and use the guitar selection, volume, tone and my fingers to make it sound the way I wanted. I didn't own a pedal until about three years ago. This has added another layer of color to play with. Joy. A tweaker is born. I might try a gold pin for v1 in the future just to hear what it does.

Neat stuff and I will recommend you to my tweaker buddies.


From: Mike Thompson [] Sent: Thursday, October 21, 2010 2:16 PM To: Eurotubes
Subject: Thanks!

Hi Everyone,

I just wanted to drop a quick note and say thanks for all your help. This goes especially to Mike. He talked me into switching to E34L power tubes and ECC83's for the preamp on my Carvin V3. I was hesitant to switch to anything different than the original Groove Tubes EL34R's. I loved my tone and was a little nervous about changing it. I went with Mike's advice. In truth, he wanted me to go with the 6L6's. After hearing how great these new tubes sound, I think I'm going to go ahead and also get the 6L6's. 

Additionally, thanks to the great videos, biasing was a breeze. I'm really looking forward to this new found relationship with Eurotubes and the tonal options that I now have available.Your company is a tremendous resource and I certainly appreciate everything you do.

Thanks Again,
Mike Thompson

From: Joseph Romero [] Sent: Tuesday, October 19, 2010 5:47 PM To: Eurotubes
Subject: Eurotubes Rocks...pun intended. 

My name is Joseph Romero and I recently did business with Eurotubes. Only one word can describe my experience with them: awesome. Everything from information, customer care, price, product, follow-up, and timeliness was nothing short of top notch. 

Not only were my questions answered in a fast, informative, and thorough way, my tubes came in QUICK and working perfectly. My amplifier (AC30CC) went from “okay” to “beautiful”. I HIGHLY recommend using Eurotubes for your tube needs. The great thing was that before even being a customer they gave me great customer service. I’m a customer for life ;)

Joseph Romero

-----Original Message-----From: Blaine M [] Sent: Tuesday, September 21, 2010 8:31 PM To: eurotubes
Subject: Re: Fender 75 retube

Hi Eddie,

Just wanted to drop you a line to say I received the tubes and just finished installing them. WOW! Did they ever wake that 75 up! It sounds like an entirely different amp! The high end sparkle is there now - and does this amp ever do a good blackface impression. And the gain channel... it sounds nothing like it did before. With the old tubes, anything above 2 on the pre-gain dial just turned to fizzy buzz. With the JJ's the whole sound and character of the lead channel is different. It sounds much more like a classic tube amp overdrive. With a sweet grind instead of a harsh buzz. Plus, it seems like I have a lot more play in the settings to get usable sounds.

So, my advice would be if you ever see one of these amps on the market, pick it up. They can be had for really cheap (I got mine for $250) and they sound better than a Hot Rod Deville. And obviously, drop in a set
of JJ's and you're rocking!

Thanks again!


From: brett jordan [] Sent: Tuesday, September 21, 2010 8:41 AM To: euro tubes
Subject: all i can say is WOW!

Hi everyone,

I would just like to say how extremely impressed i am with both of my re-tube's that i purchased from you a few days ago. Not only is your knowledge of tubes better than anyones that i've ever heard, but your quick replies to my email's with suggetions for my amps (Peavey 5150 212 combo, and Marshall JCM2000 TSL100) were amazing to say the least. My amps sound like something you would have to sell your soul to get!

They simply scream, but retain all of the clarity i need to strut my stuff and make it noticeable. It's funny, because i always thought of amp biasing to be a job for some specialist, rocket scientist type of amp genius, but with your help, i found it no harder than putting the tubes in the sockets themselves! Once again, thanks for all of your help and great service! I will always be using you for future tube needs and advice!

Brett Jordan

-----Original Message-----From: Rob W [] Sent: Saturday, September 18, 2010 3:30 PM To:
Subject: Great Job!!

Hey Bob (or who ever is reading this), My name is Rob Whitaker and I recently just ordered and installed a high gain tube set for my JCM 2000 TSL 100 head, and I just had the urge to let you guys know on how much better these matched tubes made my amp sound. The tones are much more juicy and deep than the Svet's and GrooveTubes that was in it before, and as for the gain I honestly can't believe on how much more growl this thing can get now. So mainly I just felt the urge to praise you guys for what you do because you truly care! Also at the age of 19 with 7 years of playing and being a total music gear head I've learned so much from your site about biasing, how amps work in detail, and how important contact cleaner is! (haha) So thanks for helping me out with knowledge, tone, and letting me be the only guy in my town who can bias a JCM!

From: David W [] Sent: Tuesday, September 14, 2010 12:04 AM To:
Subject: Feedback and Testimonial

Bob, Eddie,

I was in today and picked up retube kits for my Fender Super Champ XD and Peavey 6505+ 112 combos. From top to bottom I can say you guys have provided excellent service, deep technical expertise and most importantly results.

To start, Eddie provided excellent phone support and spent a lot of time discussing tubes, amps and recording before it was even clear you guys would have a sale. I visited the shop in person and everyone was friendly and accommodating spending a lot of time with me discussing my needs, teaching me what I need, why and how to do the installs and bias the XD (piece of cake BTW but I already had a nice meter). You guys even showed me your recording studio were we discussed gear and technique. But the best part of the experience lay in wait...

The high gain retube kit for the 6505+ 112 KICKS ASS! The tonal balance is improved, the gain is liquid and the articulation is excellent. The amp sounds so much better. I'd already replaced the stock Sheffield speaker (P.O.S.) with a Celestion 25 watt greenback (I tried the greenback and the vintage 30 which were both huge improvements over the Sheffield; I went with the greenback whose characteristic thinner low end seemed to balanced the bass response of the 6505+ 112, at least for my playing, we'll see what I think over time, but I don't mind accumulating a few speakers in the process of exploration). That was a huge improvement. Then the tubes took it up another notch. I'm all in for $700 and I'm not where I was with my Mesa Boogie Dual Rectifier/Marshall 1960B 4x12 half stack I sold some years back (worst decision I ever made) but very close and for a fraction of the price. You were also right about the old axiom when it comes to tube amps. It needs to be LOUD to really get to the sweet spot. A challenge for bedroom recording but I'm so relieved knowing that I can get what I need. I spent weeks of recording trying different settings, mics and mic placement with lack luster results, muddy low end and scratchy gain. I have no doubt I'll get some great sounds to tape now. (For the record the reverb on the 6505+ 112 still sucks, I didn't check the clean channel yet, but that's not really a priority for me right now).

The XD kit was also an improvement, not as huge as the Peavey but definitely closer to what you want to hear out of a clean Fender amp. Again I had already replaced the stock Fender speaker with a Jensen C10Q which was a modest improvement and the tubes and increasing the bias provided another step up. There is definitely more headroom now, and more sparkle and character. I'm all in for $360 on that amp and for the price point it is very very good and had decent flexibility (for anyone considering the XD there are a lot of clean and medium gain options with lots of highs, really great dynamics and natural compression, the pick attack still has a bit of digital character but it is subtle, the digital effects really emulate the classic fender effects nicely, the high gain stuff isn't that usable in my opinion but again, not really a priority for me).

In closing, I'm very impressed with Eurotubes and will eagerly refer all of my guitar playing buddies to you. Huge tone improvement, very reasonable prices, and expert advise. Talk about bang for the buck. Retube your amp with a Eurotubes retube kit NOW! You owe it to your tone.

Your new Bro,

Dave Williams

-----Original Message-----From: Sam M [] Sent: Thursday, September 09, 2010 6:36 PM To:
Subject: recent order

Dear Eurotubes,

I recently ordered and received a retube kit for my Carvin X100B and a bias probe. I received both within 2 days of ordering and I live on the east coast.

I got regular updates from Jay and can't say enough great things about your customer service.

I used my bias probe to set the bias on an old Sovtek MIG50 that I had and , using your instructions, it worked perfectly. I couldn't be more pleased. By the way ,I've never biased a tube amp before and I had no problems.

I want to thank your for your outstanding service.

Sam M
Satisfied Eurotubes customer

From: [] Sent: Monday, August 30, 2010 6:30 PM To:
Subject: (no subject)


Just wanted to thank you for an excellent shopping experience. I play guitar for a living, so I've spent a lot of time over the years searching for the holy grail of tubes, and I think I can now stop looking. I ordered over the phone and Mike? (I think it was) was very helpful in my decision, and explained everything thoroughly. The shipping time was way faster than I expected, and the product is outstanding. Thanks again... I'll be doing more business with you in the future, and recommending you as well.

Scott smith

-----Original Message-----From: Julian K [] Sent: Friday, August 27, 2010 5:30 PM To:
Subject: Holy SMOKES!

These tubes are sick.
I ordered the Fender HRD normal clean channel - High Gain lead channel with 6V6's to replace the stock tubes for the Hot Rod. I can't put to words what the difference is, other than 'fat', 'full', and 'nicely nasty'. I play across the spectrum from clean to over-the-top and at all levels these tubes sing.

Thank you for the great tubes and the sets. Awesome is an understatement. For 70$ I jumped from flat to fat. For example, the third fret harmonics (all of them) ring and sustain. Previously, when I hit them, it sounded like I was hitting old strings with a rubber spatula. I play without a pick so the extra gain really becomes critical. The old HRD 'sneeze' tone is now mean and full without shattering ears.

My wife agrees and she knows nothing about guitar. Wow. I mentioned the 70$ because everyone who owns a HRD winds up dropping 3x that to buy a distortion or OD pedal. I'm glad I went this way because it just sounds better.
Thank you.

From: Mark Kunie [] Sent: Wednesday, August 25, 2010 4:55 PM To:
Subject: Classic 50 212 Retube

Hey there,

Mark Kunie Salisbury Maryland. After buying another guitar! I traded the latest one for a used How old?? Classic 50 212 by Peavey Has pointy logo.

I spoke with Eddie through emails, and Michael and the Customer Service was top notch. No less than amazed by his wonderful expertise. I had the install go well, and have to say the quality of the tubes are right spot on, the description given online and on the telephone. There were tubes in this amp with no names or whatever was in there. I am now very confident, that I have tested tubes and Good Tubes!

Thanks a million guys. I am very happy with the service, and help. I hope to tell everyone that I know, about Eurotubes! Mark Kunie

From: Bill [mailto:] Sent: Friday, August 20, 2010 4:57 PM To: 'Bob'
Subject: RE: Customer Order: 32765
Importance: High

Hi, Bob.

Thought you might be interested in what I posted in a couple of the guitar forums. Feel free to add it to your testimonials if you like.

“Well, the new tubes from Eurotubes for my Blues Deluxe Reissue showed up yesterday. The set that I purchased was this one:

‘Fender Blues Deluxe-Deville Blues Option

Description: A hotter matched pair of the JJ 6L6GC's for the reissue or the original fixed bias 90's Blues Deluxe or Deville for a big warm tone along with a standard ECC83S for V1, an ECC81 for V2 to drop the
gain with one balanced ECC83S for the phase inverter in V3. These will reduce the preamp gain for players wanting less gain.’

As soon as I got home from work I plopped the amp on my workbench and had at it. Gotta say, that thing is either getting heavier or I am getting weaker as I grow older. Anyway, I opened her up and proceeded to pull the old Groove Tubes out (old is relative since I bought the amp new in a box at GC's July 4 sale). I then popped the new JJs in (nice tight fit) and fired her up.

I let her sit for about 15 minutes before I rebiased the new tubes (it was still sitting at 70 mV that the GTs were set to last). I set the bias to about 80 mV +/- 1 mV and plugged in my guitar to play a few chords and such. Sounded really nice. Looking at the Weber bias charts, I decided to set the bias at 60 % dissipation (I like a nice, clean sound and use my Monte Allums H2O+ modified Blues Driver for dirt). This worked out to be about 86 mV at a measured plate voltage of 405 - 410 VDC. I set the bias to about 85 mV and took my two Golden Retrievers out for their evening walk.

Upon returning home about 45 minutes later, I rechecked the bias and found it had drifted up a little to about 88 mV. I reset it again to 85, took my shower, had dinner, and watched a little of the Cream 2005 Royal Albert Hall reunion concert. I checked the bias again about 1.5 hours later and found it had settled around 85 - 86 mV. Time to button her up and play a little.

Sounds really good. Much improved over the factory GTs. I can actually sit in front of the amp vice off to the side and not kill my ears while using the bridge pup (Fender SCNs all around) on my MIM Standard Strat. Overall, the sound was really nice with a great improvement in the bass. Much tighter and less farty. But I still thought she could sound better, so I dropped the bias back down to 80 +/- 1 mV.


That was the trick. She sings now! I love the tone. The clean channel is fantastic. The Drive channel is still not great, but noticeably improved over stock, and I use the Blues Driver in the Clean channel for the most part anyway. Bass is phenomenal. Not overpowering, but tight and clean. Mids and highs are very sweet. My strings sound new again. I can now turn the Presence knob to where I like it and not scar my eardrums with the bridge pup. Bright switch is still a bit much, but less so than before. The pick attack sound is sharp and clear. To say that I am in love with the new sound is an understatement. Heck, even the stock speaker sounds much better now. I gotta say, this is the best thing to do to improve the sound of these amps (which is not bad to begin with by no means). And it cost me less than $90.00 (including shipping and 3 of Eurotubes orange tube dampers for the preamp tubes.). Way to go, Eurotubes!

Some observations:

When I started after work, it was still quite hot out (I live in Northern Virginia) and the AC was running full out. When I wrapped up for the night several hours later it had cooled down and the AC was running less. In that time I found that the bias voltage increased about 2 mV (and the plate voltage went up a couple of volts also) from start to finish. So I set the final bias to about 81 mV which should then vary between about 79 and 81 mV during the course of the evening. Naturally, I will monitor the bias over the next week or so as things settle.

I can't wait to get home tonight and play!”

Bill Haegele

-----Original Message-----From: s& [mailto:s&] Sent: Thursday, August 19, 2010 9:02 AM To:
Subject: KT77 + Peavey 3120 = WOW

Bought a Peavey 3120 back in February and overall, it has been a decent amp. However got to reading about guys using various combinations of tubes to give their amps a little different character.

Now the 3120, like the XXX before it has an INSANE amount of gain - almost too much. So I ordered a 12DW7 to try in V2. Now where getting somewhere - the gain went from a scream to a growl. I also
ordered a quad of KT77s.

Popped the KT77s in and took it to my local amp guy for a proper biasing (he used the osciliscope method). Took it to practice last night and WOW. This amp totally came alive and went form being a good amp to a great one. The other guitar player in our band described the amp as sounding so mean he felt like it was going to reach out and punch him in the face. The cleans sound very full now and my gain channels have a punchy, complex mid range and great bottom end and smooth highs. Chords roar with authority and leads are nice and warm sounding.

Best investment I've made. My tube of choice for this amp is most certianly JJ KT77s.

From: [] Sent: Thursday, August 19, 2010 7:04 AM To: eurotubes
Subject: Re: RE: Customer Order: 32468

Just a note to let you know I got everything worked out and have been using my amp with the KT77's and what a difference. I dial in the sweet spot and the thing just sings. This has transformed my JCM 900 from an ok amp to a great amp. I really am enjoying it.

My band even noticed the difference right away and love the sound as well. The clean tone is really sweet as well. Great recommendation. Thanks for all your help and support.

From: Jeremy Zoubek [] Sent: Sunday, August 15, 2010 7:02 PM To:
Subject: I have to thank you Bob.

I have to thank you a lot Bob for the re-tube kit I bought from you 2 years ago for my Marshall JCM 800 50w 2x12 Combo (ECC803S in V1, ECC83 in V2 and V3, and KT77 in V4 and V5).

I bought that amp back in 2002 when I was 15 years old and I fell in love with the tone. It had some old tubes in it. Three Tungsram ECC83s and Two Gold Lion KT77. I hooked up my guitar with a iBanez Tube
Screamer and I could not believe the tone. Everyone I know loved the tone. It sounded nothing less than perfect. It singed. It cried. IT SOUNDED JUST PLAIN AWESOME.

Just over a year later (late 2003), a disgruntled and extremely jealous friend decided to steal the amp from me. I was happy to hear the police found the amp, but with some damage. One of the power tubes was shattered. At first I thought it was not a big deal until I realized the very large price tag for a single KT77 let alone a set of two.

Because of my lack of a well paying job, I had to resort in the purchase and experimentation of several new production companies. After trying GT-6550s (Garbage Tubes) and Sovtek’s EL34s (not so good), I
settled on using SEDs EL34s (which I will admit are not too bad). I used these tubes along with the Tungsram ECC83s for the next few years.

My parents as a 19th birthday present (2006) sent me to a guitar workshop for a week. After much discussion with my instructor, he recommended I go to Eurotubes, I told him I will someday. I wrote down the name EUROTUBES in my set of notes to check out someday. It would be 3 years until I looked at those notes again.

I am glad I did find your company name scribbled on the front cover of my notes. I searched for the name and found your site. I noticed that you sell a tube by the name of KT77, After a short 5 minutes I figure
“why the hell not” and bought a 50 watt retube kit for a Marshall JCM 800 50 watt.

After receiving my order, I plugged the KT77s in along with the new preamp tubes. After a quick bias, I started playing and I could not believe how well it sounded. It sounded just like the amp before it was stolen.

So Bob, I have to thank you for your tube descriptions and you sacrificing some KT77s to be reverse engineered. IF you have not done that, I would not be writing this, nor would I have found out how much I
missed the great tone when I got my great guitar amp.

With much appreciation and thanks,
Jeremy Zoubek

From: [] Sent: Saturday, August 14, 2010 7:01 AM To: eurotubes
Subject: Re: Tubes!


Just wanted to give you some feedback re: the re-tubing of my sons' Peavey JSX with your high-gain tube option...

Unquestionably, the new tubes have made a HUGE difference in his tone/sound and he's thrilled with the results...thanks again...Eurotubes will be our exclusive source from here on...


Dan P

-----Original Message-----From: Jeremy McAllister [] Sent: Wednesday, August 04, 2010 9:53 PM To:
Subject: Thank you, tube tone wizards!!!

I just installed the Hi-Gain rated JJ E34L power tube set for my Marshall DSL 100, along with the Hi-gain JJ ECC83s in the pre's. WOW!!!! I couldn't be happier with the tone. My one complaint about my Marshall (and lots of other Marshalls) is that there is a brittleness that is so hard to extinguish from the tone, even EQ pedals, Sonic Maximisers etc. can't get rid of it. The JJs did and did it well. Now my Marshall sounds, well, like a Marshall should sound, fat, biting, sustain for days, and clear as a bell. Now the mids are so harmonically rich, the low end tightened just right, and the brittleness removed, I am pretty much awestruck.

Now I'll even take the Pepsi challenge against any Fender in the clean tone realm, that's how much my tone got repaired. On top of that, your how-to- biasing video eliminated the mystery of amplifier biasing and I was able to do it myself with a Radioshack multimeter and nothing else. On top of all that the packaging was thorough and protected and the shipping fast. 100% to Bob and his team at Eurotubes,


Jeremy McAllister

From: chris f [] Sent: Wednesday, August 04, 2010 5:28 AM To: bob
Subject: retube 5150 order #32387

Good Morning Bob,J., eurodudes and dudettes,

I purchased a retube kit from you guys for a 5150 combo a couple of weeks ago. The order arrived and I just got around to installing them last night. I'm sure you've heard this a million and one times but here's one more, WOW!

The difference is like night and day!!!! even the drummer noticed the difference,( that's something!!) We have a saying back east here and it is " Wicked Pissah" and now this amp sounds wicked pissah!

Thanks for a great product and great service and advice.

Now I've got a jtm 30 and xv112 to retube!

thanks again euro dudes.
sincerely chris

From: Todd Greene [] Sent: Friday, July 30, 2010 1:17 PM To:
Subject: Thanks for the tubes and lightning fast delivery!

Bob-I am a harp player with a modded Epiphone Valve Junior. The stock Russian tubes that were in it were perfectly described by you on your comparison page as ‘sounding like cardboard’-no warmth, no smooth breakup, little bottom end. I ordered JJ replacement EL84 and 12ax7 tubes from you on a Monday afternoon, and received them on Wednesday around lunchtime-wow! I installed them, grabbed a mic and a harp and let it rip-HUGE difference these tubes have made!

Your product, service and shipping are second to none. I won’t hesitate to recommend your business to others in need of good tubes at a good price.

Thanks!-Todd Greene, New Orleans, LA

From: Jeff Raymer [] Sent: Thursday, July 29, 2010 6:05 PM To:
Subject: Eurotubes Review

Hello and Thank You Eurotubes Crew! I got my tubes and did exactly what you instructed to do on the website. Now my Marshall TSL100 sounds amazing. I'm hearing sounds from my amp I've never heard before. I had the stock Svetlana EL34's and the original Marshall 12ax7 preamp tubes and the JJ's are a huge difference!

The first time I ordered from Eurotubes I really messed things up. I didn't use contact cleaner and set my multimeter wrong. When I finally got the tubes biased they didn't sound right so I went back to the old stock tubes. Time went by and my amp was still sounding bad and getting worse with pops, crackles, and static. I decided to give Eurotubes another try and I'm glad I did. This time I was patient and ordered the contact cleaner and made sure I was really ready to change the tubes.

I was determined to do it right this time. I even waited to be in the right mind set before I did. I was making it a ritual so to speak. After I did all the things that needed to be done I plugged in and was blown away at
how much better it sounded. It made my amp come to life. You guys are right on about using the contact cleaner. It makes a huge difference sound wise I think. I will never retube without using contact cleaner again. Eurotubes knows there business through and through. When I retube again I will be calling Eurotubes for sure.

Jeff Raymer

-----Original Message-----From: Warren L [] Sent: Tuesday, July 20, 2010 8:27 AM To:
Subject: Re: EuroDampers


Received the order yesterday....really fast shipping. The tube dampers work great in my Pro more tube rattle. I will always come back to Eurotubes for future purchases. Your customer service is the best!

Thanks again!

From: Michael K [] Sent: Friday, July 16, 2010 8:31 AM To:
Subject: Them tubes

Howdy Bob,
I just wanted to take the time to drop a line and tell you how happy I am with my Eurotubes experience. The JJ's were flat and lifeless the 1st night I practiced with the band as somewhat expected. The 2nd night...WOW!!!!! Ripped my face off!!!! They still have that big tight bottom and that quick hitting bark of a 6L6. The mid range, although having more bite, also has a much more musical quality to it. My bandmates noticed the upgrade the 2nd night and they never notice anything. I would have to say as awesome as the tubes themselves are, Eurotubes service is even better. I still can't figure out how you got them to me so incredibly fast. Thanks for a good experience. I will be back.


(Hi Mike: Yes, the Kustom Double Cross has an odd "auto-cruise" bias system and it seems to take a couple hours to settle in. * * Bob)

-----Original Message-----From: Stephen B [] Sent: Sunday, July 11, 2010 10:16 PM To:
Subject: Re: Tubes

Cannot say enough good things about the tube compliment you guys set me up with!
Clearly, you can't do tone justice with simple words, but I'll try! Rich, smooth, and buttery with some killer harmonic overtones. The sound that Bandmaster made had my buddy Zakk wanting to trade it for his prized Blackface Bassman!
I think I convinced him just to order some tubes from you guys lol! JJ's all the way, won't be buying any other brand, and I won't be buying from anybody but EUROTUBES!

From: George S [] Sent: Friday, July 09, 2010 2:33 PM To:
Subject: Re:Vibrolux

Thanks for all your help and the great service. The stock tubes were harsh and lacked clear high end definition. In comparison, your tube kit for my CVR has given me way more clean headroom and when it does break up it goes form grind to crunch depending how I set the pots on my axe. It sounds better than my oxblood Bassman and is much easier to carry around. Overall, great tone is available at all volume levels and my reverb/ trem circuits sing. This is no longer a one or two tone amp; much more versatile. For all you CVR haters I have barely any audible hiss with my Strat and no farting bass. Very tight lows
and singing highs.

Thanks again fellas!

-----Original Message-----From: Ty Carson [] Sent: Saturday, July 03, 2010 10:06 PM To:
Subject: Thanks Guys

Bob and Company,
Thanks for the fast shipment. The new tubes got here in two days, 48 hours after placing the order, and we're on opposite sides of the country! And you spent valuable time explaining your tubes and made some solid recommendations.

The little (hot-rodded) Epiphone Valve Junior never sounded better. The gold pin *ECC81 works very well, and is dead silent, no hiss or pops at all. It responds to an MXR classic over-drive (GT-OD clone) with a
smooth, perfect flatness, with no humps. Just crank it up and push the gain to about 11:00 and it'll make you play everything you know in one session. With pedals, it is a perfect setup! The tone knob on the OD can go from searing, wailing highs to heavy, tight low-end. Plumb gnarly. . And the quality! I have never heard a quieter amp, not even solid state. Pedals and guitar cranked up full, the amp has a tiny white sound whisper, so you know it's hot.

Amazing. The EL 84 in the power socket has a sweet breakup, and the gain knob can go higher than 3:00 without any mud at all. No more Sovtek growling. (great for metal but not my style.) These tubes should be OEM for class 'A' peashooters.
Thanks again,
Ty Carson

-----Original Message-----
From: Chris Smart [] Sent: Thursday, July 01, 2010 10:42 AM To:
Subject: Testimonial

I've been meaning to send this in for awhile. I would appreciate it if you could add it to your testimonials page.

Hi guys. I must compliment you not only on selling great tubes, but on the excellent customer service I have always received. Recently, Eddie was quite happy to talk with me on the phone at length about the sound I was after from my amp, suggesting tube substitutions and other tweaks. His suggestions were right on the money! Not only that, but he helped me diagnose a problem tube and sent me a replacement right away. That level of support is increasingly hard to find.

Chris Smart,

From: Edward P [] Sent: Monday, June 28, 2010 7:52 PM To:
Subject: JJ tubes

I purchased tubes from you last week and just wanted to tell you how much I like them. I have used some old RCA, GE and Mullards in the past and am by no means a tube expert, but I think your tubes sound the best. I really didn't think good tubes like these were still being made. I found everything you wrote about the JJ tubes on your website to be extremely accurate. It is very good to find an honest, accurate tube dealer. Once again, I am really enjoying my new tubes and in the future will buy my tubes exclusively from Eurotibes.

Thank you. Edward P

From: Bill McClure [] Sent: Sunday, June 20, 2010 10:13 AM To:
Subject: new tubes

Hello Eurotubes Team:

I should have know better...  Read your company history, amp info, and customer reviews.  Quite frankly,  I didn't think a retube would make much of a difference on my 90's Fender Blues Deville (4-10).  Well I was wrong!  My tube amp has never sounded better - The clean channel is powerful and even the formerly weak overdrive channel is now smooth, sweet, and properly crunchy.

Thanks Eurotubes!!


Bill McClure

From: David G [] Sent: Saturday, June 12, 2010 12:02 PM To:
Subject: Tube Kit

I just wanted to drop you guys a line to thank you for the fast service & Great sounding tubes.I ordered a 'high' gain kit with the early breakup option for my Blues Jr. on wed. and received the kit on friday. I followed the instructions enclosed for swapping tubes and WOW !!

It really woke that little amp up ! It sounds great with lots of sustain & drive ! Just what I was looking for. It also cleans up real nice when I roll the volume back on my guitar. Special thanks go out to Mike for answering all of my questions & recommending the right kit to me.

I will be a return customer from now on.
Eurotubes Rocks !!!!


From: Gabe Chacon [] Sent: Saturday, June 12, 2010 8:26 PM To:

Hello, I just wanted to let you know that my project went well! I build a Valvecaster pedal using the standard ECC82/12AU7 I purchased from eurotubes! It went nicely, its a Tube Booster/Light Overdrive that Boost the signal and adds a tube overdrive/Distortion/Fuzz like sound. It is really warm, and I must say this tube REALLY kicks the heck out of any other overdrive I have used! I tried this pedal with other 12AU7 tubes, one from electro-Harmonix, a chinese tube, and of course the JJ Electronic one purchased from eurotubes, and the Eurotubes one just CRUSHED every other tube I have ever used! I am still pretty new to tubes but from what I have messed with so far, Eurotubes just stocks the most incredible tubes I have ever used...! Thank you for a fantastic Product, and for the amazing quality, the price is just amazing! Thank you to everyone at Eurotubes! I will not purchase any tubes other then Eurotubes!


From: chuckc [] Sent: Sunday, June 06, 2010 5:40 AM To:
Subject: Tubes

You have probably heard this a million times but OMG! what a difference the tubes you sent made. I played Wednesday with the old "Fender" tubes that were in there and it was sterile non active the amp for lack of better words it sounded dead! I popped those tubes you sent me for the Blues De-Ville for Saturdays gig and it came to life, the amp is now an extension of sings and it was a pleasure to play I can not thank you enough!

n Extremely Happy Customer!


From: Marcos B [] Sent: Saturday, May 22, 2010 8:59 AM To:
Subject: RE: Tubes

Hey guys! Hope you're fine.

Tubes arrived in Brazil yesterday direct to my house and everythig went allright!
I'm very impressed for the great job you're doing in Eurotubes. The quality level is insane! Congrats!

Thank you so much and probably we will do new business in the next 3 or 4 weeks.

Best regards,

Marcos Bonas

From: Bill Rouse [] Sent: Thursday, May 20, 2010 11:00 AM To: Eurotubes
Subject: Marshall Haze MHZ15 w/ JJ 6V6S

Eddie & Gang,

Had to let you know how pleased I am with your tubes in the output of my Haze 15. I was hoping that they would improve the sound, but it is markedly better. The clean channel is more sparkly / airy --
enough so that at first I thought the bright switch was engaged when it was not! The drive channel maintained its warmth but has more mid-"sizzle", and the bass is less muddy. Really a terrific improvement over the stock tubes! Dare I say even plexi-ish???

For what it's worth, the bias voltage was almost unchanged with the JJs vs. the stock tubes. Running @ 24-25 mV with plate voltage of 358-359 V each side.

Thanks again,

Bill Rouse

-----Original Message-----From: mal [] Sent: Monday, May 17, 2010 7:32 PM To:
Subject: Re: order 31158

Eurotubes (Bob/Eddie),

I just received my package this afternoon. Your recommendations for my JCM602 were absolutely spot on. My amp has NEVER sounded this good. I've always thought the drive channel tone was muddy on this amp, but the new tubes have really tightened up all those heavy palm mutes and brought the highs back from the grave. Fuzz no more!

Next time I need a set of tubes, I know where to look. I will pass your name on anytime I get the chance.

Also....your coffee mug is bad ass!


Shane Heck

From: Jody [] Sent: Friday, May 14, 2010 11:38 AM To:
Subject: Tube Mod (Mesa triple rec) Install & Thanks

Bob / Jay,

Just wanted to let you know that I have installed the tubes. As instructed I took my time to properly clean all the sockets with contact cleaner, which resulted in a flawless test (no noise artefacts or even hiss
from the gain).

Now for the good stuff... At the strum of the first cord it got most of the guys in the band's attention, a few palm mutes and even the drummer was wowed (hmmm a drummer that is impressed with a guitar tone, mark the calendar)! All I have to say is " ", yup speechless!!!! This mod of KT66/88's and the high gain pre is the best thing that I have done to my guitar rig (on the quest for my ultimate tone).

I have always like my sound from the triple rec but to me it was never refined almost like mesa did not finish the design went 95% of the way and then stopped. Well this is the remaining 15%, that's right it is now 110%. This tube mod has addressed all the things that I did not like about the amp, the sound is more refined with a nicer smooth well rounded voicing with a punch that sounds like it was mixed in the studio (let's hope the sound engineer will not mess up this tone) but with the grab you buy the jugular live attack.

As for the high gain pre this is another WOW, if I did not replace the tubes myself I would of guessed it was a different head. Mesa notes in their manual (2ch Triple Recto) that the gain's sweet spot is 11:30ish to 2ish with the remaining being not really useable. I use to run the gain around 3 to get a little more but at that point it was starting to have the wheels come off. Now the gain is useable right up to 10 still keeping it all in tact with definition and tightness. The gain shape is a lot nicer with no more harshness, I would go on and on but I know you already know all this hence the creation of the

All I have to say is you Rock!!!! I can't wait to see what you dream up next.


From: Dean R [] Sent: Saturday, May 08, 2010 4:18 PM To:
Subject: JJ tubes

I recently purchased a retube kit from you guys for my marshall tsl602. Those JJ tubes rock, its like I have a new amp! Thank you Eurotubes for bringing my amp back to life. You guys know your stuff. I know where I'll purchase my next set of tubes! Classic Rocker, Deano

-----Original Message-----From: Mike W. [] Sent: Wednesday, April 28, 2010 7:17 PM To:
Subject: 5150 high gain tube set

Hello all at eurotubes, first I would like to thank Bob for his help educating me on tubes for my 5150 I went with the high gain 6l6 set ordered them on Mon. and they arrived today (wed). After reading the instruction I had the new tubes in sockets cleaned and all in no time (no bias mod helps) and Holy S@*t its a monster, it was always one hell of an amp but now....the gain is insane and I even have a usable clean channel. Nothing but praise you have a tube customer for life, and the word will be spread.

Thanks again

From: joshua l [] Sent: Wednesday, April 14, 2010 6:30 AM To:
Subject: Re: Tubes


Thanks for the personal note. I ordered my tubes on friday and received them on monday. The packaging was immaculate and the tubes sounded excellent. The directions attached made installing the tubes easy and ensured i was doing it properly. On friday i called Eurotubes and spoke to someone about an issue with my mesa dual rec. The person i spoke with was curteous and quickly helped me identify my problem and gave me the best solution.

I work in process improvement for and understand the importance of customer experience and prompt service. This has been one of my most positive experiences purchasing items online to date.

I will be ordering more from Eurotubes in the future.

Thanks and keep up the good work,

Joshua Lakes

From: Robert Sadowski [] Sent: Saturday, April 10, 2010 7:00 PM To:
Subject: Thanks!

Hi Bob and Jay,

I just wanted to say thanks for the tubes as well as the fast shipping. I just re-tubed my Deluxe Reverb RI (it had stock Sovtek and Ruby tubes) and it now sounds so much better. At lower volumes, clean
tone is beautiful (to be fair it sounded very good before--that's why I bought the amp) but now the top end is nice and mellow yet very detailed. Overall the tone is balanced. Where I notice a huge difference is when turning up the volume, the distortion is now rich and not shrill and the bottom end doesn't fall apart. Playing a Gibson 335 through this amp is nothing less than inspirational.

I've been a customer for about 8 years now and JJs (from Eurotubes) are in just about all of my amps. The quality and tone of the tubes has always been consistently excellent as has been your customer

Thanks again guys,

Rob Sadowski

From: James, V [] Sent: Thursday, April 08, 2010 3:10 PM To: eurotubes
Subject: RE: Customer Order: 30430

Bob I am blown away by you.......... My rig (Mesa 50/50 and JMP-1) now breathes like a firey dragon and is a differant beast all together!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Thank you for all your help and I am now a follower of Eurotubes!!!!

I will spread the word.

Thank you again


From: shane w [] Sent: Saturday, April 03, 2010 3:18 PM To: eurotubes
Subject: RE: Jet city jca100h (soldano action)

Holy badass bias'in!! lolz

So I tested the plate voltage with the multimeter you were so kind to give me, and got 507. Using the math on your website: 25/507 = .0493 or .049 x .7 = I biased the JCA100H up and woooweee do those JJ's sound so much better!!!!! You guys are the total shit!



From: Levi Watson [] Sent: Saturday, April 03, 2010 12:12 PM To:
Subject: bias probe success!

Hi Eurotubes,

I just purchased one of your bias probes and successfully biased my Rivera M60-410 combo today. The probe was easy to use and the "how-to" video and photos on your website were very helpful. I carefully checked the plate voltage and found it to be 440 V, which is exactly what you had posted on your site. I checked the bias probe reading and did some quick calculations. The tubes were initially running at about 30 mA, or only about 53%. This is way too cold! A quick turn of the bias trim got it up to 40 mA, or roughly 70%.

Thanks for giving me the tools and skills to get the job done! It was quick, safe, and easy, and the amp sounds better than ever! You definitely have another satisfied customer!


Levi Watson

From: Jason G [] Sent: Friday, April 02, 2010 8:07 AM To:
Subject: THANK YOU

I just wanted to write this to you to sincerely thank you for what you did to my head, both figuratively and physically. I had ordered a full set of tubes from you for my JCM2000 TSL 60 a few weeks ago. I went with the recommended KT77s and the high-output ECC83s. Dear god. That's all I have to say. It went from a 2 month kitten to a full size male lion. What a freaking difference! My marshall simply roars now, and not with any unexpected gain in the cleans. I had the chance for the first time to practice with it last night and the guys in my band were blown away.

My other guitar player will be ordering from you real soon. He has a dual rec Mesa. He made the mistake of going to that awful guitar chain that we all know of and bought his tubes there. He has now
realized his mistake, simply put.

Thank you Bob, the patron saint of Tube heads.

From: Ken King [] Sent: Monday, March 29, 2010 8:01 AM To:
Subject: Tubes!!!!!

Hi Bob, Received tubes and finished the JTM45 build. The tubes sound great! The KT66's and the Gold pin ECC83's matched /balanced high gain are super quiet and FULL of TONE!! I am running the KT66's at 400VDC and they aren't even breaking a sweat. I believe these tubes could handle 550VDC! with no problem! Your matching and grading are spot on. The GZ34 rectifier sounds awesome, very close if not just as good as the Mullards of yesteryear.

I am a customer for Life. Time for a pint. Peace Bro, Ken

From: Joe [] Sent: Friday, March 26, 2010 9:38 PM To:
Subject: 6505+112 Combo w/JJ's

Hi Bob,

Had my 6505+112 less than a week when I ordered the hi gain JJ's from Eurotubes. Just installed them and fired it up.

Holy molten metal of hells bells this thing breathes nitrous and shoots flames!

It was decent with the stock tubes, but the difference in the crunch and lead channels are significant. Not just in sheer gain but tonality. With the stock tubes the amp sounded sterile it needed a good ass kicking. Now it's getting it!

Thanks for your assistance. Always a pleasure doing business with Eurotubes.
You guys are tops!



From: Mark Pawlak [] Sent: Saturday, March 27, 2010 7:57 AM To: Eurotubes
Subject: Re: Peavey Delta Blues 2-10


I just wanted to say thanks for your excellent recommendations regarding my Delta Blues and Voodu Valve tubes.

The Peavey sounds better than ever (better than new) and I have excellent control of early breakup and crunch with the new tubes.

Even more impressive was the effect your high gain ECC83S had in my Voodu Valve preamp. The preamp really came alive with the new tube...clarity, gain control,'s coming with me to the next
show as my primary amp. I didn't try the matched triode ECC83S, but figure I'll hang on to it as a back up.

Thanks again, it was pleasure working with you.


-----Original Message-----From: Chris Smart [] Sent: Wednesday, March 24, 2010 5:07 PM To: Eurotubes
Subject: Ed... Very happy with my order!


I appreciate the conversation we had on the phone last week. it's great to actually talk to someone knowledgable about various possibilities for my gear, instead of just taking my chances with a local shop and a salesman full of myths and half-truths when it comes to tubes and amps.

My KT77's arrived today. You were bang on when you said they would smooth things out, give me a bigger low end and nice highs. I put them in my Traynor YCV50BLUE replacing the EL34's, and wow! That boxy midrange "honk" is gone! I was thinking that the excessive midrange might have been coming from it's Celestian V-30 speaker, but nope, it was definitely the tubes. The tube swap totally revoiced my amp, and definitely for the better! I was thinking of adding a 1x12" extension cabinet to get more bass, but I don't need to do that now.

Very happy!


Chris Smart

From: Nicholas P [] Sent: Wednesday, March 24, 2010 4:01 PM To: eurotubes
Subject: Thank you for breathing new life into my Mesa Single Rec!

Hi Bob!

I got the tubes today and all I can say is WOW. I feel like I'm hearing my amp for the first time! Those KT66's really just are exactly the sound I have been searching for and I don't think I could be any happier. My whole band was just blown away the second I cranked that new beast of an amp and they couldn't believe the change from a REAL pair of tubes (I couldn't convince the new guitarist that if he got some new JJ tubes he would be blown away, so I figured I'd just let him hear it for himself).

That full, rich harmonic sound of those KT66's (along with the new ECC83's of course) really are just such a perfect change from those stock Chinese Mesa tubes. I even seem to have better control and range of gain on both my clean and overdrive channels and I just never expected such a wonderful change in every aspect of the amp.

Thanks again!


Original Message-----From: Scott L [] Sent: Tuesday, March 23, 2010 3:09 PM To:
Subject: yamaha t100c

I received my tubes and they were very well packed.

I loaded my amp and played it a little before having it biased. It sounded better already. Once I biased the amp I was blown away. I have been using your tubes for a couple weeks now and have received more compliments on my tone than I did with the stock tubes.

I appreciate your quality control and careful attention to detail when matching your tube sets. You have bought my amp back to life!

The next step is to send my amp off to Mercury Electronics to have them bring it up to Soldano specs.
Thanks again!



Hi Scott: We really do not recommend installing tubes without biasing the amp! But I'm glad you like the tubes!


From: Dusty Douglas [] Sent: Saturday, March 20, 2010 12:02 PM To: Bob
Subject: Re: Customer Order: 29886

Dear Bob,

I purchased the tubes below recently and I have a few things to say about everything:

THESE are the BEST-SOUNDING tubes I have EVER run in this amp, period! I have used Electro-Harmonix, Sovteks, and Groove Tubes before, and these are awesome. I am running my Legacy bias at 175mA and this thing sounds god-like with these tubes! Thank you for both the recommended bias current window for my VL-100 and for having the distributorship to make these tubes available to folks like me. The last time I re-tubed my head it cost me close to $250.00 purchasing the tubes through retailers! You have saved me a bunch with the re-tube kits you make available. I chose the KT77’s so I could get a bit better bottom-end and using my Les Paul running EMG 81/85s, the tone of my rig has that distinctive sound that I have only felt in Soldanos and Boogies; very inspiring to play.

I just wanted to write and send a formal ‘thank you’. The tubes arrived very quickly (faster than I thought) and well-packaged with the magic words “fragile” on each side of the box so there was no question as to the delicacy of the contents. Terrific, responsive service and a great product have earned you my business for the next time I need tubes or caps for my amp.

Take care,
Dusty D.

From: [] Sent: Sunday, March 14, 2010 1:53 PM To:
Subject: RE: WTF?

The new Tubes are installed. I played for several hours Fri night then again on Sat. I tried a thousand different settings to test them out thorougly. I want you to know exactly what I think of them. A picture is
worth a thousand words, so I created an image for you guys and it's attached to this email.

From: Dax D [] Sent: Thursday, March 11, 2010 10:08 PM To:
Subject: RE: Tubes

Received all tubes, Holy cow!! My amps sound stunning. The JCM 800 with KT77's is a beast. My 1976 2203 with E34L's even eats the 800 alive. Sounds great, you guys have made my mini vacation awesome (Wife and kids are visiting relatives).
Thanks, will be wearing the shirt tonight!!

Dax Determan

From: Greg G [] Sent: Monday, March 08, 2010 9:52 PM To: eurotubes
Subject: RE: Bugera V22 Question

Hi Bob,

The tubes sound great!

When I bought this new amp, the saleman at GC was going over warranty items and he mentioned tubes are not covered, I said "that's okay, I'm going to order new tubes from eurotubes next week anyway.
What a difference.

I really liked the Blues package I picked up for my Peavey Classic 30 last time. This similar package for the Bugera V22 is great.
Thanks~ Greg

From: Mark Ellison [] Sent: Friday, March 05, 2010 2:52 PM To:
Subject: Peavey Classic 50 410

Hey Bob, I spoke with you earlier this week about tubes for my C50. I'm a very old friend of Charlie Molter aka PVHolic and after speaking with him, you, and reading on Scott Henderson's message board that John Suhr uses JJ's I decided to go with the standard re-tube with moderate output. The difference was immediate! The brittleness my amp had before is gone. It's smoother, rounder, and thicker than before. Even my OD pedals are substantially better sounding and react with the amp in a much more natural way. All I can really say is GREAT JOB! From my first phone call till the time my tubes arrived was a great experience. I WILL be using you again when I need tubes in the future.

Mark Ellison

From: Erik Sosa [] Sent: Monday, March 01, 2010 4:27 PM To:
Subject: Peavey JSX now rocks!

Dear Bob, Jay, and the rest of the Eurotubes crew,

I've had a Peavey JSX for about 6 years now and when I first got it I was sorely disappointed. Over time I've made three big changes to the amp that made it so much more worth it. First off, a change of
speakers from a Peavey XXX 4x12 to a 2x12 with V30s (that's a different story altogether). Second, I made changes to the tubes. It sure was a miracle I stumbled across this site last year. Second, I
replaced the power section with KT77s and it was the perfect crossroads between a 6L6 and EL34, good harmonic mids with excellent low end. Like many tube amp newbies I was apprehensive to biasing my amp alone, but I follow the instruction to a T and had zero problems. Second, I only recently replaced the preamp tubes last week, upgrading from the standard EH12ax7 to the High gain JJs and wow.

The breakup on both Crunch and Ultra channels just screams, (is there any better way to describe it?). All these positive reviews you guys get are well deserved. The tubes arrived in 2 days, I was thinking, that is too fast for USPS! I plan to keep ordering from you guys when I get another amp down the road. Bob and Jay, thank you for responding within a day of my emails and giving me the good advice about picking what I wanted for my amp. So much corporate crap these days that it's hard to find an excellent, small business (in another state at that) with great customer service and an incredible depth of knowledge about the product. What you guys are doing has given me great confidence in dealing with small business. I will return again soon! Thanks!

Erik Sosa

From: Don [] Sent: Monday, March 01, 2010 3:26 PM To:
Subject: GREAT JOB

Bob.......First let me thank you for the QUICK service and the expert advice !!!
The tubes did arrive today (Monday) just as promised.......
This was the first tube change since I bought my Classic 50 in 2001..
You were right...I now have a TWO channel amp.....
The lead channel is not a bit HARSH like it was and I even have the pre-gain on was terrible before on four now it sings...
Seems like I did lose a little brightness in the clean channel but I'm working on that....
I was surprised what came out of this amp for being never touched STOCK tubes
I pulled out
V2.......Sovtek 12AX7LPS
V3.......Sovtek 12AX7LPS
Power Tubes were Sovtex EL84/6BQ5

With the JJ's the tone is a lot better in the lead channel seems I lost a little gain in the clean channel but that might be just me seeing I haven't got out of the lead channel because it sounds so good for a change....
Thanks again Bob
Chalk me up to one happy customer...
Don D
Niagara Falls

From: Deron C [] Sent: Saturday, February 27, 2010 5:05 PM To:
Subject: Thanks Guys!

Hey guys, I got a re-tube and bias probe for my XXX from you a couple of weeks ago, I don't know how ofter you get feedback but I have to say thanks! The tubes shipped super quick and the probe was super easy and fast to use, I kind of feel like a chump for paying someone else to do this last time I got new tubes! Thanks for the great service and the instructions for setting the bias, my rig now sounds like the devil!


-----Original Message-----From: Shaun C [] Sent: Saturday, February 27, 2010 3:09 PM To:
Subject: Re: Just a quick question

I got the amp cranked up about a hour ago and it sounds AMAZING!
Much better then the Ruby Sovteks that the previous owner had in there!

When I get the money saved up I'm going to do a Ceriatone DIY build of some kind probably a JTM45/100 "Experienced". Anyway what ever I decide to build Eurotubes will be the first and only tubes that are ever put in it!

Thank you once again!

-Shaun a new fan and customer of Eurotubes and JJ tubes

From: JACK LABBE [] Sent: Saturday, February 27, 2010 1:54 PM To: Eurotubes
Subject: RE: Order # 29265 - -to Eddie

Just a short note to say I replaced the tubes in my HRD with the 'Blues 2' option. The amp sound fantastic! I am very pleased. The re-biasing of the amp was easy thanks to the video on your website and the bias information you provided. So thanks again to you and all at Eurotubes for all of your help. I will highly recomened your product and websie to all who I talk to.

From: Chris Robinson [] Sent: Sunday, February 21, 2010 5:01 PM To:
Subject: Re: Tubes

Bob, Jay,

I just wanted to tell you guys that I received the tube set a few days ago. They are now installed and biased (was: 64mV, now: 70mV) - and the HRD sounds fabulous. Thanks for your quick response time,
and your web site is great - I followed the video and written instructions, and now job is done - no fuss, no muss!


From: [] Sent: Thursday, February 18, 2010 9:25 PM To: eurotubes
Subject: Re: Question about preamp Phase Inverter tube

Hi Bob,
I received the tubes today and installed them in my amp. I followed the instructions in detail from your website on changing tubes and made sure I used contact cleaner on the pins on all 8 tubes. The
retube was a success without any kind of problem. The JJ ECC83S High Gain are AWESOME!! My little Marshall 401 is oozing with TONE once again with JJ tubes! It was 6 years ago the last time I changed tubes.

I'm glad I opted for the High Gain option on the preamp tubes, I've been wanting to try them on my amp. Right now I'm absolutely loving them! I immediately noticed the differrence compared to the standard JJ ECC83S that I had in my amp before. Same awesome tone but with more gain. I hope you continue to offer the High Gain option on these preamp tubes as they are the BEST sounding preamp tubes I've ever heard! Thanks for another great service and super fast shipping!

Kent, WA

From: Ross, Kenneth [] Sent: Thursday, February 18, 2010 7:52 PM To:
Subject: Bel-Air Re-Tube

Just to let you know. I received the re-tube kit for my Bel-Air. All I can say is WOW!!! This is unbelievable. I don't understand how these work, but I know for a fact they do. Jay is very helpful and
knowledgeable. This company is an exception to the rule these days. Jay took the time to ask me several questions about what style I play etc. And put together a re-tube kit that is perfect for me. I have
every confidence that Eurotubes can help anyone with their tone. Great tubes, great customer support, great service! I ordered on Tuesday and received the tubes on Thursday. Amazing! These tubes made a
good amp into a great amp. Jay even walked me through the bias process. For you guys that play country clean, Bakersfield sound, I found on my amp that between 80 and 85mA is perfect. Thanks guys!
Keep it up.

Kenny Ross
East End, Arkansas

From: Stephen Everett [] Sent: Monday, February 15, 2010 7:37 AM To:
Subject: Thanks to Eddie

Hi Eddie,

Got my Blues Option 1 JJ6L6Gc’s x 2 and the JJECC83S’s x2 and JJECC832 x 1 about a week ago but hadn’t had time to put them in to my HRD …did it on the weekend and then took it to my brother in laws house (he’s an electrician) to re bias it with his multimeter (that was as easy as anything)…and then I cranked it up Saturday night…..

wow wow wow wow what a difference….the cleans are so much bigger and fuller and appear to have more character if that’s the right description….. I liked the old cleans OK but the new tubes have given it a whole new tone…. and the overdrive (which I didn’t really like before at all) well now we are talking…now I have an overdrive I can use it is smooth, creamy (again I’m not sure if that is the right description) and it has none of the barky jaggedness it had before and the more drive is now a great boost to the overdrive channel….I am stoked really happy with your recommendation….now I am looking at two pretty expensive overdrive pedals which I bought to try and get my overdrive tone but now I am thinking do I really need them…..I’ll keep them as I might discover a whole lot of new tones using them with my retubed HRDx…thanks again Eddie and Eurotubes another thrilled customer…


From: Jack O [] Sent: Tuesday, February 09, 2010 4:10 PM To: 'eurotubes'
Subject: RE: carvin tube refit

Hi Bob,

Thank you for taking the time to answer my queries. You were right of course, 75ma was too cold for the Belair Bias.

I down loaded the Belair/Nomad Biasing instructions from Hasserl, and realized that 75ma, included the current ALL the tubes were using together, so effectively, the quartet of EL-84’s were only drawing about 52 m/amps. Way too cold like you said. I can’t really understand why Carvin says to do it a different way?

Anyway, THANKS a million! I now LOVE the Soak channel! With the master about 5-6, and the Soak around 2-3, I get a really good ballsy lead tone. With the blues option #1 tubes, I can basically leave my amp on the soak channel most of the time, still get near crystal clear sounds, and more bluesy aggressive sounds when needed.

The clean channel, well Hey, that was beautiful anyway, now it’s a bit warmer and fuller as well.

In this world of ever dwindling service, care and satisfaction to customers, you must be one of the very few left, that still manages to shine a beacon of hope.

Thanks heaps!

Jack O ( from down Under )

From: Jeremy M [] Sent: Monday, February 08, 2010 7:54 PM To: Bob
Subject: Re: Customer Order: 29243 - High Gain / KT77 Marshall TSL100

Well the new tubes showed up today. I ran up stairs like a kid on Christmas and followed your instructions to a T. Let me tell you, my fingers hurt getting those suckers in.

Everything is in place and contact cleaned. Flip comes on the power, we have light! Give 'er the ol 5 min or so and flip off the standby and get to biasing. Set it at 89.5mv per side and plugged a guitar in. All I
can say is HOLY CRAP!!!!!!!!!! I can't believe it's the same amp. It's amazing the crap that Marshall sends out in their amps from the factory. Even when it was brand spanking new it didn't sound this good.

All of a sudden, I look at my watch, and 1.5hours have passed. You know, one of those "can't put the thing down" moments, it felt like I was playing for 15 min.

At any rate, I'll be the new owner of a Mesa Dual Rectifier that has been sitting in a guys closet for the last four years come this weekend. Me thinks I'll be needing to place another order very soon.

Thanks for your help and the speedy shipment. I'll be in touch in the next few for a retube kit for my


From: Tony Yates [] Sent: Monday, February 08, 2010 12:01 PM To: 'Bob'
Subject: RE: Customer Order: 28856

I just wanted to drop a line and say thanks. I was expecting the new tubes to help, but the difference from the stock tubes is quite staggering. The gain channel (Classic Peavey) is nothing like it used to be,
much more powerful and yet smoother, I love it. This was my backup amp and now I am using it at gigs as my first choice.

Thanks again,
Tony Yates

From: Henry Robinson [] Sent: Thursday, January 21, 2010 3:26 PM To:
Subject: Customer Review for Carvin BelAir Blues Option #2

First off, You all have me hooked, never again will I pay $25 for a Groove 12AX7.

The Carvin BelAir was my first tube amp and of course I loved the sound, it killed my solidstate in power and tone. It had the factory stocked Groove tubes in it, so after about a year I decided to try the Carvin BelAir/Nomad Blues Option #2 after showing all the other options to various guitarists, they all said the #2 looked best.

I was about to totally re-tube my amp, in order to save some life left in the Factory-stocked Groove tubes, just in case I got a bad tube or I didnt like the sound. Right before I was going to totally re-tube it, a trusted friend said that he STRONGLY advised against it, and that it would change the voicing of my amp, so I was nervous about it, I couldn't return them because I'd already opened the box up to check out the new tubes. Well I put them in an hour ago and they blew my mind.

First, the amp is louder and even when it is turned down farther than before it has MORE meat on it than when I had the Groove tubes.

Second, I liked the soak channel before, yeah alot of people were knocking it, but when I put it on the soak for the first time, all that mud was GONE, it seemed like it had slightly less gain, but it was so much better sounding.

Third, the sound on the clean is so much fuller than before, so many new nuances coming out of my Vintage 30s.

Lastly these my infact be miracle tubes... Beofore I put them in, the reverb tank in my amp would rattle when I hit very high notes on the treble strings.... It is GONE now... I don;t know how or why... But all I know is, before I put the tubes in there was a rattle with the 3 spring reverb tank... then I put the JJs in and it was gone, COMPLETELY!!!!!

These tubes are amazing, I don't know whether to try another one of your Bel Air retube kits or to stay with the Blues Option #2....

            Great work, Thank you,

                Henry Robinson

From: Aaron Reiners [] Sent: Wednesday, January 20, 2010 3:10 AM To:
Subject: review

I put the regular full retube kit in my valveking 212 combo over a year ago and the results were incredible. I only use the clean channel and use pedal distortion. If you own a valveking, you know why. When I put the tubes in it went from dark and a little muddy sounding to bold and chimy. The response got much more immediate and satisfying. The low end picked up a lot more thump and dropped most of the mud.

It also picked up a little bit of high-end sweetness that I didn't know the amp was capable of. After almost a year of playing in two bands, my power tubes are finally dying and I will not hesitate to buy jjs again when the time comes. My only complaint is that the amp is still a valveking :)

-----Original Message-----From: Alan Castillo [] Sent: Monday, January 18, 2010 9:45 AM To:
Subject: Re: Tubes

Hello Jay and Bob,

Just to let you know that the tubes arrived! we put them in the Orange AD30R, and the difference with the stock Electro-Harmonix tubes that were in the amp is amazing! Much cleaner, with so much more
harmonics and overtones, and much more responsive to player´s touch on the guitar! Again, thank you very much for choosing the right tubes for us, and of course, I look forward to make bussiness with you
Best regards!

From: Jason Lyman [] Sent: Monday, January 18, 2010 5:58 AM To:
Subject: RE: Info on Crate V-Series Amps - biasing


I bought some JJ EL84 power tubes Saturday. Popped ‘em in my Palomino. I had a good idea of what to expect from all the research I’ve done on tubes.

I was unprepared though…

BLOWN AWAY. Man, my amp is totally alive now loaded up with all JJ tubes – ECC83s and EL84. WOW. My fingers hurt from playing. I had to come to work today to give them a break!

I’ve already preached the word. I’ve got a bud up in Dallas that has a pair on order for his amp. This will be the only tube I run from now on.

I’m gonna go find some “review” websites to post the message.

Thanks again!


From: Dale Manning [] Sent: Saturday, January 16, 2010 7:27 AM To:
Subject: Original Blues Deville 4X10


I've read a lot of bashing on these Eurotubes but decided to try them anyway.

I purchased a complete set for my Fender Blues Deville (original 1993)
1. 2 6L6GC
2. ECC83S for V1
3. ECC81 for V2
3 Balanced Tube for phase inverter V3
turned the amp on & let it warm up for 15 minutes, hit the standby switch and WOW.
These tubes amazed me.I love the sound, I am quite pleased.
When the funds situation gets a little better, I'm gonna try the Forever Blues combination.
This particular original Blues Deville is connected to a 4X12 extension cabinet along with the fender 4X10 internal speakers.
It Does Rock..
Thanks again.DM335
Also the tech guy who answered the phone was very helpful to my questions.

From: John [] Sent: Saturday, January 09, 2010 1:23 PM To:
Subject: Thanks!


I installed the standard JJ re-tube package and Weber Blue Dog ceramic in my Peavey C30. Very impressive! I've always been jealous of the tone I got with my guitar when I gigged with a buddy's Ampeg
Rocket. Not any more. After some jamming and some re-tweaking, the cleans have more chime, detail and depth. The dynamics are much better on the drive channel. I can't wait to play out with my new
amp. Thanks for the outstanding customer service and fine products.

John Meyers, Raleigh NC

From: Shaun Doran [] Sent: Saturday, January 09, 2010 1:07 PM To:
Subject: RE: Tubes

Hey Bob and Jay,

I just wanted to give you guys some feedback, you guys are awesome. The shipping was insanely fast it only took like two days to get here. Also your site has very detailed instructions on installing the tubes
which rocks. They sound great in my 6505+ by the way. I will definitely be doing business with you guys again in the future.


From: Anthony Wozniak [] Sent: Friday, January 08, 2010 6:34 PM To:
Subject: tube change and bias peavey 3120

Hi Bob, Thanks to your expert advice, and simple bias instructions, I have tweeked my Son's new PV3120 with high gain pre amp kit and KT77's.The factory installed JJEL34's sounded good but he blew a
tube in the first month. You were right that the voltages were very different from tube to tube, and overall the amp was biased(Factory) in the upper 20ma range with the high at 28.5. by moving it up to
38.5,(35%) it made an awsome difference, but we swapped the EL34's for the KT77's per your advice.

At the bias set for the EL34's, the KT77's registered at 58ma. Bringing that back to 38 made the cleans brilliant with great tone throughout the EQ range, and rhythm and lead channels just outstanding with
tons of gutteral grunt in the low end and a great breakup at the high end.Hopefully eliminating any grid resistor issues as well. Overall my son's experience with You, and JJ has been eye opening. Thanks and
keep on testing. Tony Wozniak

From: Frank Grullon [] Sent: Monday, January 04, 2010 12:44 PM To:
Subject: Got the new tubes and LOVE them


Just wanted to thank you for your help over the phone. The E34Ls, Hi-Gain preamp tubes, and GZ34 rectifier tubes make my Mesa Roadster head sound even BETTER than before! I still have quite a bit of
bass in my tone! Actually I hardly had to touch my settings (boosted mids & highs, reduced lows) and it sounded like a blanket was removed from my amp.

If you get a chance, definitely checkout my band The August Infinity!

Keep rockin! I'll spread the word to my other guitarist to replaced his Diezel VH4 with JJs!


From: Brandon C [] Sent: Thursday, December 31, 2009 9:25 PM To:
Subject: Re: Tubes

Hi, Just wanted to say thank you so much for your quick service and shipping on my order of tubes!! The Gold plated ECC83S's really smoothed my 5150 out and gave me the tone my ears have been looking for. Nothing touches ya'lls 6L6gc's either and now that it is biased correctly its like a completely different amp!! Again, thanks so much, and Happy New Year!!


From: Michael West [] Sent: Tuesday, December 29, 2009 9:53 AM To:
Subject: Re: Tubes


Just a quick note of thanks. Installed the new tubes into the Peavey DB last Saturday.

Great, smooth sound! So much more musical and rich. Just picked up a Les Paul. Man does that combination work. Your description on the website for the re-tube kit was spot on.

The JJ's and your service are the absolute best.

I'll be recommending you to everyone I can.

Thanks again!! Happy New Year!

Michael West
Michael West Photography

From: Jerry [] Sent: Friday, December 25, 2009 3:33 AM To:
Subject: Thanks Again!

I just retubed my brand new ENGL Fireball 100 with the JJ Tubes. I won’t use anything else in any amp period. I also only trust Eurotubes. It’s even better than new! The JJ’s made all the difference in the world! The amp came to life and plays so smooth, that I did not want to put my guitar down. I also wanted to comment on the great advice you guys give, also thanks for the best customer service I have ever had from any company.
First Class Operation!


From: Dave M [] Sent: Sunday, December 13, 2009 4:19 PM To:
Subject: RE: Tubes & bias probe

Hi guys,

I just wanted to say thanks for the great products, service and info. I installed the tubes today and took my first shot at the bias probe and multimeter. Despite being nervous about shocking myself, the whole
process was pretty easy. I was surprised that the Carvin V3 registered a 18 on the multimeter before adjustment. I dialed in 37 and took it for a test drive. The amp sounds great.

I feel bad for all of those people who haven't taken the time to bias their amps :)

Happy Holidays,


From: Jon Swoveland [] Sent: Saturday, December 05, 2009 11:17 AM To: Eurotubes
Subject: Got my JJs !!!

Hi all at Eurotubes,
I'veI already received the Blues Option 2 set of JJs I ordered only 5 days ago (with Intn'l Priority shipping) and have put them in my Fender Hot Rod Deluxe (with a Celestian Vintage 30 and the 25w/150Ohm sag-mod )

I'd like to share my impressions of the comparisson of the GTs that were in there with the new JJs...

Right before the swap-out I made sure to play through the amp for a while with the existing GTs , just so I would have a good basis for comparisson (I even rebiased the GTs up to about 85mV to get them their best chance). Then I put in the JJs and rebiased up to 45mV (I already had mod'd the biasing-pot resistor to provide greater range- I'm sure it would have topped out at 30 otherwise - due to the sag-mod).

The difference in a word: WOW!
In a bunch of words:
Regarding base: The flab is gone! The base is dramatically tightened up - my strat finally sounds like a strat! Regarding drive: Let's put it this way: I'm no longer shopping for an overdrive pedal. I'm now getting warm crunchy overdrive on the drive channel and the "More Drive" button is actually usuable. Everything about these tubes is better! Touch sensitivity, dynamics and just overall depth of tone is
waaaaay better!! 
Thank-you Eurotubes and JJ Electronics!

A very happy customer!
Jon Swoveland

PS - I think the GT 12AX7s will get a new life as Christmas tree ornaments!

From: Russell B [] Sent: Wednesday, December 02, 2009 11:55 AM To:
Subject: bugera 6260 gold pin retube kit and bias probe

hay bob this is russell.I bought this bugera 6260 head a couple of months ago and right out the box it blew fuse .Replaced fuse then blew a power tube .Replaced power tubes with electro-harmonix 6l6s.The
amp sounded terrible it was painful just thinking of turning it on..My son told me about eurotubes i am glad he did. This thing sound amazing now i set the bias at 38 very well balanced tone. thanks happy

-----Original Message-----From: Trevor Hurtig [] Sent: Friday, November 20, 2009 10:38 AM To: Eurotubes
Subject: Thank you

Hi Eddie,

Just a quick note to tell you that I am very happy with the standard retube kit that I purchased for my Traynor YCV 40 WR.

The shrill ice-pick like highs are gone, and I am left with a very dynamic amplifier with tons of tube warmth.

I wanted to wait until I had put a few miles on the new tubes before I sent you this note, but I knew from the minute the change was made that I was on to something good. I just didn't imagine how much of a
positive change they would make! I liked my amp before, but I love it now. Traynor should ship their amps with your tubes. I would even have payed more to get it sounding like this at the point of purchase.

Thanks again for all of your help in getting me set up. I am completely satisfied.

All the best,

Trevor Hurtig

From: Mark S [] Sent: Thursday, November 19, 2009 3:38 AM To: eurotubes
Subject: RE: All things TUBE!!!!

Well Bob,

It's confirmed. You really know your stuff about tubes/amps and Eurotubes definitely RAWKS!!!!

I received the new JJ tubes you suggested and I can't believe the difference in my little V5. Nice and clean up to about 2/3 with my Les Paul and about 3/4 with my Strat. Nice gentle break-up controllable
with guitar volume and definite gutsy distortion when pushed hard. I LOVE IT!!!

Give me a few weeks and I'll be ordering a couple more "sets" for backup and future use.

Thanks again for your knowledge and help.


From: [] Sent: Monday, November 16, 2009 12:56 PM To:
Subject: ECC83S

The mailman just left and i installed the JJ ECC83S high gain preamp tubes in my Marshall TSL100...the amp just warmed up to a new level of voicing I've never heard before. The hairs on the back of my neck are standing up. It feels like the amp is tickling me back through my fingers. No bs. Thank you guys, I'll be recommending these JJ's to every player I know.
Your czech friend,
Bryan Nosel


-----Original Message-----From: Fraser, Todd [] Sent: Friday, November 13, 2009 8:36 AM To:
Subject: New life for my Fender twin

I just received my JJ 6L6GC from you last night with my biasing and installed them. I biased them to your recommended 38mA and then played. I know I'm supposed to let them burn in but I was excited. I used my Fender Jag HH that actually has a P-90 at neck and a classic 57 at the bridge. I was thinking about totally re-doing the whole guitar but after last night I changed my mind. I noticed a difference right away.

The amp was definitely warmer and even though the highs were still a little harsh I could tell the tubes were going to be great. I left the amp running for about 4 hours and then before I went to bed I plugged in, much to my wife's chagrin. It sounded phenomenal and if it wasn't 1130pm and my wife wasn't screaming at me I would have played for 4 hours straight. I can't wait to play my Taylor solid body classic through it. The Taylor makes any amp shine so it should take these tubes to the next level. I will never run Groove Tubes again and will be a life long customer. Now I'm starting to think what my original 66 Ampeg Reverb rocket ll will sound like with JJ's in it. It's still running all original tubes believe it or not so I don't know if I should swap them out to save them or just wait till they blow out. Anyway thanks for your great service and great product.

Todd Fraser

Hi Todd: No need to burn the tubes in, they have 24 hours on them but after any power tube gets up too optimal temp which takes about 20 minutes they will really open up.

From: danny martin [] Sent: Thursday, November 12, 2009 11:23 AM To:
Subject: Very satisfied customer

Once again you guys amaze me. I emailed you yesterday because I was having an issue with white noise coming from my tsl100. Your response time floored me. I received an answer within 30 minutes . I
followed your suggestions cleaned the sockets and biased the amp to appx. 87 mv .This solved the problem. My TSL is now back to the way it was prior top my problem. Thank you for all your help. If other
companies treated people the way you guys do the world would be a better place.

Thank You

From: Steve Bryan [] Sent: Monday, November 09, 2009 12:59 PM To: eurotubes
Subject: Re: Order Number: 27612

I got a chance to play through the KT77's w/ ECC83 gold pins over the weekend, and I have to say that I was impressed at how much of a change it made. I play through a Traynor YCV50 outfitted with
eurotubes high gain E34L's ( upgraded from the original rubbish ). The E34L's were good and punchy enough for sure, I just needed a bit more chunk. The KT77's don't bite like the E34L's, but chunk they
can do, and well. Where I was most surprised was the clean channel. Lots of rich texture that wasn't there before, very warm. I'm guessing this is the result of the ECC83 gold pins, if so, this will be a permanent fixture in the preamp stage. The harmonics were fantastic on both channels. Overall, I am pleased to say the least. Just wanted to drop you a line and let you know how things worked out.
Thanks for everything, and huge points on customer service, a forgotten phrase in business today.

Steven Bryan,

From: [] Sent: Monday, November 09, 2009 12:46 PM To: Eurotubes
Subject: Re: Retubing a Mesa MKIV

Hi Eddie,

The standards sound FANTASTIC!!! I ended up using the standards in all positions. Iwent back to using the 6l6/E34L combination.The Boogie never sounded better.In tweed, class A, it almost has that brown sound. When in simulclass full power with volume on 4 it freakin' screams!!The bottom end is unbelievable and it now has that silky smooth lead tone I was after. With the high gain set,the tone was
there but it had a little too much grit. It was almost like a really good fuzz effect.Just not my sound. I'll experiment with the Traynor later in the week and I'll let you know how that turns out.It's been sitting
for a while and needs a good going over.


From: Darcy Lapointe [] Sent: Friday, November 06, 2009 2:31 PM To: Bob
Subject: Re: Customer Order: 27480

Hi Bob (& folks),

I received my order yesterday (KT66/KT88 kit for my Dual Rec) and followed your instructions for the installation. I used an electrical contact cleaner spray as suggested, and worked the tubes in and out a
couple times each.

What a difference these tubes have made to the sound!

The first thing I noticed is that the amp seems a lot louder. All of the flabby woofing in the low end is also gone, there is no more issue with the low end at all! It's much tighter and clearer. The amp handles my
7-string's low B perfectly without any mud.

The most dramatic difference is actually with the clean channel - it's beautiful! Using a single-coil pickup, I can't believe how sweet the clean is, considering it's a Dual Rectifier. I'm a distortion player for sure, but I couldn't stop playing clean stuff today, it's just so nice. The cleans had been so thin, sterile and flat it's glassy and chimes.

The dirty channels now have a lot more nuances to them, which is great - but means I have to spend some time finding the sweet spots, as the EQ controls are now a lot more sensitive. The amp is a lot more transparent, so I can really hear the differences in my guitars and their pickups.

There is now a really big difference in the spongy/bold and tube/transistor rectifier settings, where it wasn't so pronounced before. This tube set really seems to prefer the bold/transistor settings for dirty tones, as it sounds tightest this way. The Mesa 'fizzy' distortion is at it's most noticeable level when spongy/tube rectifier settings are selected...a little buzzy in the top end. It's a tough call though, because at lower gain settings, the tube rectifier/spongy setting is really warm and a lot more natural sounding. I thought I had the ideal settings for the amp, but I need to re-explore all the various settings again.

Anyway, very happy with everything and thanks again for your help...feel free to use anything here for
your feedback page!


Darcy Lapointe

From: shane wyant [] Sent: Friday, November 06, 2009 6:00 AM To:
Subject: RE: Tubes

Installed the GZ34's in my DR last night......much tighter sounding in rec mode!!! I can't believe how something so small (compared to the stock mesa 5U4's) can pack such a big punch!!! Thanks for such a
great recommendation! I'm in love with my amp again :)

Also, I know you hate Crate Blue Voodoo's....but I changed out my friend's stock sovtek tubes out and installed your BV kit, and holy kick in the nuts! The gain stages are beautiful, there's an actual punch to the amp now... so much more clarity to it. I don't know if there's more mids/high mids, but whatever it is, it sounds like the blanket over the speakers was removed! :) rule....thank you for knowing wtf you are talking about and sharing it with the rest of the world. Your shipping was crazy fast too!!

Very satisfied customer,

Hi Shane: I don't "hate" Blue Voodoo's, they are just not one of my favorites! Glad you like the tubes. Bob.

From: Kurt McKee [] Sent: Thursday, November 05, 2009 7:51 PM To:
Subject: KUDOS

Just wanted to express my appreciation for great service and product. You always wonder if all the raves are real or Hype. Eurotubes is the BOMB! Jay took the time to discuss options for my son's Carvin MTS 3212 combo and recommended the EL34 High gain option. Ordered on Monday received on Thursday. Installed in the amp & biased per instructions and WOW the Carvin is a new amp it was ok before but now it is great. I wish I had discovered you guys sooner I can think of several amps we might still own had they been retubed with your assistance.
Kurt McKee

-----Original Message-----From: Christopher Kirk [] Sent: Monday, November 02, 2009 6:55 PM To: Eurotubes
Subject: Re: Amp bias

Absolutely! Once again JJ prevails!! I thought that my jj 6L6s were it. But the EL34 sound is what I've been missing for a long time!! I tell every player I know about guys are great and you sell premium products at amazing prices! I paid $46 for a PAIR of Mesa EL34s at Guitar Center and I got a QUAD of JJ EL34s for $54 from you guys!! Can't beat the tubes or the overall eurotubes experience...

Thanks guys!!

Christopher Kirk

From: JD HOWL [] Sent: Thursday, October 29, 2009 9:41 AM To:
Subject: Retubing


Absolutely amazing, the difference. My amp came alive and got me playing more than I have in a long time. I couldn't walk away from it. I got blisters on my fingers. After replacing the blown fuse in my meter, everything worked just like your video. I set it @ 38.5, plugged in, and it ripped.

Thanks guys, you've got all my business as long as I'm still breathing.

Greg Waggoner

From: mikeudae [] Sent: Thursday, October 22, 2009 8:40 AM To: Eurotubes
Subject: tone monster

Hey, today I installed the "Blues Option" tube set into my 2001 Classic 30. Although it has had some good mods, it was a better amp than stock. No speaker change, and a couple high end 12AX7's, a couple cap changes. This blues set makes it a completly new amp, what tone! It smoothed out everything, even the area between clean and crunch. I was expecting improvement from the blues set, but am more than pleased. It is now truely a "Mississippi Marshall". Thanks for the research and tubes.

Mike in VA

From: Russ Gasper [] Sent: Wednesday, October 21, 2009 2:57 PM To:
Subject: Ampeg SVT/ New JJ Tubes

Hi Jay and Bob!

A couple of weeks ago, I made my second Eurotubes purchase; 11 beautiful JJ tubes for my Ampeg SVT Classic. Honestly, I didn't think my tone could get any better with the SVT, matching 8X10 cab, Mogami Gold cables, and my G&L SB-2 strung with DR Hi-Beams. Well, I was totally wrong. After installing the new JJs, and taking my amp back to band practice, I was totally blown away. The new level of roundness along with the glorious, truck-to-the-face crunch that I constantly crave was enough to almost make this a religious experience. I didn't think the SVT could sound any better than it did, but it can! I was certain the moment I took those KT-88's out of their boxes that my tone was about to be enlarged considerably. Not only is the tone heavenly, but the increase in power is remarkable. I played two shows in a row two weekends ago, and literally kept the volume at about 1 1/2 for both shows (next to an Orange Rockerverb 100, a Mesa Stiletto, and a very hard hitting drummer) Anywhere past 4, and I think objects nearby would catch on fire. Anyway, what else can I say? The roundness, richness, and full-blown crunch of these new JJs make me a very happy boy.

I also wanted to thank you for being so friendly and patient with me and my questions over the phone. You guys love what you do and put your customers first, and it definitely shows. I don't see why people would need to order new tubes from anywhere else. Having said that, I will continue to order from Eurotubes in the future, and I will continue spreading the good word to people who are looking for new tubes. Thank you again guys, and keep up the amazing work.

Russ Gasper
Valparaiso, IN

From: Jimmi James [] Sent: Tuesday, October 20, 2009 3:08 PM To:
Subject: Update


I was excited about installing the Standard Retube EL34's in my Carvin V3. (Sept. 9, 09)

I was aware of the risk of "Motorboating" with the tubes properly biased but I love the EL34 tones and thought I'd give it a shot. I loved the sound from your retube kit.

Unfortunately, mine had the Motorboat Syndrome that started appearing at Gigs.

I ordered the High Gain 6L6 Option and installed them per your instructions and was in awe of the increased volume of the Clean Channel and the tight bottom with clear highs that the Amp now has.

Your service and product sells itself again !!!!

I appreciate the time you took to listen and explain the options.

Thanks again Bob for your input, advice, and patience.

Jimmi St. James
Dallas, Texas

-----Original Message-----From: David DiB [] Sent: Saturday, October 10, 2009 11:56 AM To:
Subject: Re: Tubes & bias probe

jay i can not thank you or eurotubes enuff man ... retubed my tripple x and rebiased it ...and the amp came to life ...has plenty of gain ....and most importantly clearity....nice low end punch with the harshness taken out of the mids just as your description said ...last nite was the first nite out giging since the retube ...and through the p.a it sounded massive ,clean, clear and full of life and body ...i apreciate everything

From: Colin Blakely [] Sent: Monday, October 05, 2009 12:17 AM To: Bob
Subject: Re: Customer Order: 26720

Hi Bob

I have recently installed the tubes I received from you for my '65 reissue twin reverb (Gold Pin option). After having bought tubes from you in the past I knew I wouldn't be disappointed but I have to tell you that I simply could not believe how great my amp sounds now. I'm playing a 335 Gibson straight into the amp, with nothing in between and the sound is unbelievably solid and clean. I'm afraid of adding any pedals now cos the sound is already so delicious.

(By the way I followed your excellent instuctions for installing tubes, on your website; to the letter........thanks for that too)

I've never played my guitar so much because it is so hard to put down now with the sound I've got. Thank you so much for your great work. I really hope other tube amp owners get to hear about Eurotubes.

All the very best

Kind Regards

Colin Blakely
(New Zealand)

From: croft g [] Sent: Friday, October 02, 2009 6:23 PM To:
Subject: Re: Just received my new tubes Whow !!!!!!

Just made the switch. This is not the same Amp!!!!

Not than I really need loud but - the amp is twice as loud with the same volume setting I used previously.

Not only loud but very crisp & clear - I can't believe $100 in new tubes made this big a difference. I don't think I need to think about a new amp for the next 10 to 20 years.

The folks in the Slovakian republic should be proud!

Thanks Again & Again!


-----Original Message-----From: raul m [] Sent: Monday, September 14, 2009 8:08 PM To: Bob
Subject: Re: Customer Order: 26724

Placed my order on Friday, got my tubes today which is Monday. Popped them in and I must say WOW! Brought my 6505+ back to life!

Thanks for the awesome service, low price and speedy delivery! Will definitely keep purchasing my tubes from you guys!

Keep up the good work Bob!


-----Original Message-----From: ryan reeves [] Sent: Saturday, September 12, 2009 12:08 PM To:
Subject: Re: Tubes

I received the E34L high gain tubes tubes yesterday and wanted to take a few minutes to say thanks for the good products and excellent service.

I installed the new tubes already (and cleaned the sockets). My Laney GH50L is a new amp. I had the original TAD tubes in there and I was never happy with this amp, and in fact I tried to sell it a few times.
After installing the new tubes my amp is much warmer and has this round/fat tone. This is the best $89 I've spent on music equipment, it's unreal how much better this amp sounds. It's hard to describe, but the high-end isn't brittle sounding anymore. The amp is smooth now.

I also purchased a weber mass from you guys, so that coupled with the new tubes just makes this amp sound killer. I finally have a setup I'm really happy with.

Also thanks for recommending Jim at guitarworks. He did a pro setup on my guitar and it plays great.

Take care,
Ryan Reeves


From: Jimmi [] Sent: Thursday, September 10, 2009 3:00 PM To:
Subject: Thanks

Thanks for the advice and the unmatched service.

Bob took the time to listen to my thoughts on what I was looking for and provided some valuable feedback pointing me in the right direction.

I was not sure I could retube my own amp, but the onsite video, instructions, and another call to Bob proved that I could.

The Amp sounds incredible !!!!

You've got my business from here on out.

Thanks again,

Jimmi St. James

From: Sly1 [] Sent: Tuesday, September 08, 2009 12:55 PM To:
Subject: 1 happy customer, please read!

I am extremely happy with the Eurotubes replacement tubes in my Mesa Lonestar V2 and would recommend your tubes as a replacement to anyone. These tubes have brought new life to my Mesa Lonestar and I love it! I have both the 6l6 and e34L tubes and love having the option of swapping them out for different sounds. The customer service at Eurotubes is no less than outstanding and I am recommending you to several guitar service centers in my area as well as my friends.

“you might or might not want to post this” Mesa’s desire to have a monopoly on tube sales for their amps is pure crap. I will never plug the Mesa tubes back in unless I need to take it in for warranty work.
You should be pleased to know that at least a couple of Mesa’s warranty shops feel that mesa’s tube policy is crap and ignore it when an amp comes in for repair or re-tubing. “I won’t mention the shop names to protect the intelligent”

Thank you,

From: David Nesmith [] Sent: Tuesday, September 08, 2009 10:42 AM To: eurotubes
Subject: Re: Tubes & bias probe


Just wanted to thank you and leave a review for the B-52 AT-112 / 212 combo owners that will need to re-tube at some point. After re-tubing with the ECC83s and 2 ECC832s to tame down the overdrive
channel, the amp has plenty of volume again and a nice crunch for blues as I had wanted. I can also get that crunch at lower volume levels now. I could not afford a pricier tube amp, but a little knowledge from you guys sure made it sound like one. You will be highly recommended to all of my fellow musicians here in Texas. The customer service and speedy delivery can't be beat. Thanks again, I thought I was
going have to keep playing solid state until I could affoed a better amp.


Dave Nesmith

From: Rudy Capistrano [] Sent: Monday, September 07, 2009 9:10 PM To:
Subject: Re: Thanx


I just retubed my Blues junior with your tubes. Result: GREAT SOUND!! It's like someone lifted a veil from the amp, it's clear, articulate, punchy, responsive, etc. Great product from your Company. I'll start
spreading the word here in Guam regarding your Company's tubes!! I am also now thinking of a full retube for my Mark IV, 6V6 option.

From: Glenn W. Nielsen [] Sent: Sunday, September 06, 2009 8:58 PM To: eurotubes
Subject: Re: Tubes!

Got my order a couple days ago and the tubes work GREAT!!! Delta blues is a singin Louisiana tone machine for blues with these things! Thanks for all your help . I will be in touch in the future for ALL my
tube needs:). All the best!


From: Eddie Heinzelman [] Sent: Monday, August 31, 2009 4:03 PM To: eurotubes
Subject: Re: Bob D - questions for Rivera

I just wanted to drop you a quick note and say a huge Thank You! I put the tubes (E34L standard kit) in the Fandango 55 this morning, set the bias at 36 to split the difference, and I’m blown away by the tone, the volume, the clarity, and my main criteria, the balls! I am a devoted Eurotubes customer from now on!

Can’t speak highly enough about these tubes and your assistance and service!
And I can’t wait to unleash this tone at the next gig!!

Thanks again, my friend!

Eddie Heinzelman
Nashville, TN


From: Morgan Bellini [] Sent: Wednesday, August 19, 2009 5:18 AM To: eurotubes
Subject: fender SUNN))) feedback

Hello guys,

i'm writing just to give a little feedback regarding my recent purchase (you have sent to Genoa, Italy)

i have successfully replaced original valves of my Fender SUNN reissue with the JJs and yes, it sound a little better and YES! placing an 81 (83?) in the V1 (as you've suggested) now i have a lot of extra
headroom!! Thanks. Now i can play other music style than noise rock.

I've also purchased a mass lite weber attenuator and its simply perfect. The volume go down and the sound remain the same. Excellent. Now i can play music with someone.

Thanks and Best Regards,

Morgan Bellini

From: Matt Koepsell [] Sent: Friday, August 14, 2009 7:33 PM To: eurotubes
Subject: My Product Review

Got the tubes today! I put them in an biased the amp like it said on your site with the weber tool and wow! The reviews were not kidding, Thank you for hooking me up, i was beginning to think i was going to
have to trade off my Vox Classic Plus 50 because the sound wasn't what i wanted with the old tubes and improper bias but the KT77s and the ECC83s warmed it up dramatically, the brittle scratchy sound has been replaced by a warm full bodied tone that is so thick and creamy, my amp finally sounds the way i imagined it should, i couldn't be happier...

The amp is absolutley perfect with the help of the JJs, great product, great customer service Eddie, fast shipping, every tube amp should have a set of these bad mofos!!! Eurotubes is an awesome business with an awesome product! Thanks a million, i gotta get back to shreddin' now!!!!!!


From: [] Sent: Tuesday, August 04, 2009 12:36 PM To: eurotubes
Subject: Fender hot rod deluxe kit, thanks

Hello Bob,
I´m writing you to say thanks for the help, upgrading my fender HRD, with normal clean - high gain preamp tubes, and 6V6 powertubes and the Weber ceramic Blue Dog. The shipping went very swift and
everything was in good condition. Due to some delay in installing the stuff by my local amp tech I´ve had the amp for about 2 weeks now. More varied tones and more detailed sound from gritty, trebly overdrive to varm, juicy sustaining distortion, suiting my style perfectly.Still enjoying the developing sound while the speaker breaks in, which is a very fulfilling experience.
Thanks again and keep up the good work!


From: Jon Kelley [] Sent: Sunday, August 02, 2009 5:42 PM To:
Subject: Thank you!

I just have to write and thank you for not only selling a fantastic product, but also giving me clear, easy to follow instructions on biasing my HRDx. I had fears of landing on my ass or worse by touching the wrong point or setting my meter wrong and blowing it or my amp. I was a bit skeptical of tube set (gold pin with 6L6GC matched set) when I first turned on my life. No wonder!! The factory set bias was 25 milliamps!

Using your bias probe gave me the confidence to fix this myself, without having to touch a bias point! 39 milliamps now and I’m a true believer. This thing never sounded better..and I’ve only tried “bedroom” volumes. Can’t wait until my next gig! Eurotubes and Co. are the best!! (and I’m no Yngwie).You have a customer for life! Sincerely, Jon Kelley

-----Original Message-----From: danny martin [] Sent: Saturday, August 01, 2009 2:53 PM To:
Subject: retubing for Marshall tsl 100

Bob, I can't begin to tell you how blown away I am With Eurotubes. On July 29th I placed an order for retube kit for a Marshall TSL100.My order arrived today August 1st....WOW!!!.I live In Florida and did not expect to receive my order for at least 7 to 10 business days. Incredible service. I Installed the tubes today and I could not believe the difference in tone and power. My Marshall is a 1991 model and it still had the original tubes. I bought this amp secondhand for a steal.

Your information on biasing was fantastic.Before I would have never attempted rebias an amp electricity intimidates me at times.I followed all your instructions and had the amp biased within 5 minutes.My Marshall is now like the phoenix that rose from the ashes. The tone is warm and very ballsy.You guys now have another fan for life and I will also send other musicians in my circle your way. By the way prior to ordering from Eurotubes I had an estimate done at an amp shop just for retubing and resetting the bias. I was floored when they told me 300.00+. I did the job for a third of the price. Thank you,Thank you,Thank you.


From: Scott  [] Sent: Wednesday, July 29, 2009 10:56 AM To:
Subject: WOW

I just installed the JJ KT77 and the ECC83 Hi Gains (marshall TSL100) that I ordered from you (on a friend's suggestion), and all I can say is WOW!!! I am very impressed
with your tubes and WILL be ordering next year when I retube again.


Scott M

From: Mike Kosoff [] Sent: Saturday, July 25, 2009 1:36 PM To:
Subject: JJ's Kick Ass!

I wasn't sure what to expect from the tube change in my Deluxe Reverb and was stunned with the results. Biasing the amp really was just as easy as you made it seem in the video and the written instructions I received with the bias probe answered the rest of my questions. I wasn't totally sold on whether I would be able to hear a difference just from changing brands of tubes, but was willing to give it a try. My first impression was that I have never heard sustain and smoothness like this from my amp. The highs were clearer and the lows took on a whole new quality that I found very pleasing. I have never been able to capture that dynamic SRV tone where it is crystal clear until he digs in and I've finally found it in some boxes that say JJ Electronics on the side. I can't wait to hear what this thing sounds like when I change out the crappy Jensen reissue speaker. Eddie was very helpful answering my questions and I was installing the tubes two days after I ordered them. You guys have a customer for life and I really appreciate your knowledge and service. Thanks again!

-----Original Message-----From: Tom McElroy [] Sent: Wednesday, July 22, 2009 7:48 AM To:
Subject: V8 Retube Report


Just wanted to say thanks for the guidance on retubing my Palomino V8. The ECC81 significantly increased the amps' headroom and made it less noisy, and the JJ EL84 reduced the muddiness and seems to have warmed up the sound a bit. Thanks for your advice and excellent service.

Tom McElroy
Broken Arrow, OK

From: Dex Umekubo [] Sent: Thursday, July 16, 2009 3:16 PM To:
Subject: Thank You!

Dear Bob,

I just put in your KT88 in my THD Univalve and in one word, WOW!

Your tube really brings out the sound I was looking for in my amp.

I will tell everyone I know that you've got a great product at a very fair price.

Thank you so much!

Dex Umekubo

aka Voodoo Dex / Lead Guitarist
Wild Voodoo

From: Pablo LaFrossia [] Sent: Friday, July 03, 2009 10:03 AM To: Eurotubes
Subject: Re: price quote for replace ALL tubes on a MESA amp

hey Eddie,

just wanted to let you know that i installed the tubes last night and it rocked!!! wow, what a difference!!!

i even called Eurotubes with a noob question yesterday. only saw 4 power tubes and the mesa had 6, but didn't know about the 2 on the right that last much longer. but must say that customer service was
excellent... and now i'm an official tube changer! lol

anyway, thanks for everything Eddie. i will most def recommend Eurotubes to everyone!!! and will be ordering kits every year!!!


From: Dennis Martinez [] Sent: Monday, July 13, 2009 12:18 PM To:
Subject: Thanx

Nearly two months after receiving my tubes, just wanted to finally thank you guys. i'm not going to call anyone out because i don't remember who it was i spoke with over the phone. i'm down in L.A. and play
death metal. We play in drop G tuning. i'm sure not too many people play in that tuning so maybe whoever i spoke with will remember. Anyway . . .

i got my tubes and then found out i had a power issue. i got my amp repaired and got my tubes installed by Moshe in the Carvin Hollywood store. He's the one that told me about you guys and whoever i spoke with actually knows who he is too. i did my research and YOU recommended a mix quad set consisting of 6L6's and E34L's (not EL34's) and i went with the high gain set of ECC83's. By the way, i play a Carvin V220 thru a Carvin V3 and a Marshall 1960 cab loaded with Celestions (not the vintage model).

When my amp was ready, i put the retubed one against one that was in their sound room loaded with the stock tubes. The settings were exactly the same and the retubed one was easily louder. i went back home and continued jamming. It wasn't until a few days that i REALLY noticed the difference. And this was at low levels (the master level wasn't even at 1) i cant describe the difference like other people on your site do. This is my first tube amp and have much to learn, i'm sure.

A week and a half ago was our first show and i was simply amazed! Our bassist loved how much heavier it sounded and i got a few compliments from a few buddies that watched us too. One guy plays thru a
Line 6 and he said how my amp blew his away! So again, i just want to say thanx. Hopefully this e-mail gets put up on your "Reviews" section, or whatever it is. Hopefully YOU reading this is the one i spoke over the phone with. These guys are the best! Cheap prices and fast delivery. Check them out.


From: Devin Sellers [] Sent: Monday, July 13, 2009 8:59 AM To:
Subject: Thank you

I just wanted to let you know that I received the tubes on Friday, and following the instructions on your website, was able to install the tubes myself. I found that the V4 tube that was in the amp wasn't all the
way in, which is most likely what was responsible for the issues I was having. I would have been kicking myself about buying new tubes when all i had to do was check the connections of the tubes that were
already in there, but as soon as I reassembled the amp, turned it on, and plugged my guitar in, I was grinning ear to ear. I've never had an amplifier of mine sound so transparent before. It was like hearing my
guitar, and only my guitar, for the first time. I was truly amazed.

Needless to say, the volume issues I was having were solved, and I am officially sold on tube amps. I will never buy another solid-state amplifier again. The gig we had on Saturday went great. I was able to hear myself over the rest of the band, and still only had the volume set to 5. Thank you again, and I assure you that if I or anyone else I know needs tubes, we're getting them from you.

-Devin Sellers

From: Zack Harvey [] Sent: Friday, July 03, 2009 4:30 PM To:
Subject: great service!

Just wanted to drop a quick note and tell you how happy I am with your service. I bought a Peavey 5150 second hand and although I was very happy with the tone, it made so much racket that it was
embarrassing. When I bought the amp I wasn't sure of the vintage, but was pretty sure that new tubes were in order, but not being an amp/electronics kinda guy, it was a little intimidating to undertake new
tubes without knowing what type/kind would work well. I read your entire site (not only the part that was specific to my amp) and was inspired to try one of you replacement sets of tubes for the 5150, and I have to say I'm pleased all around with them and your company. I ordered the tubes on Wednesday morning, and the tubes arrived Thursday morning, I was shocked. The packaging was tidy and complete, and everything was in order. I just installed the tubes as per your recommendations, and I'm so tickled by the tone that I'm able to get, and also the almost total lack of hisses and pops, and general racket that the amp used to make before the new tube set. I'm far from a professional type player, just a hillbilly farmer, but I'm so pleased with the new sound, and am looking forward to exploring the amp all over again and discovering new tones that heretofore weren't available with the stock tubes. Thanks for the great service, I will always highly recommend you guys to anyone who asks.

Zachary Harvey
Tygh Valley, OR

From: Richardson, Jeremy [] Sent: Thursday, July 02, 2009 9:37 AM To:
Subject: Great Tubes!!!!

Hey guys just wanted to say. I purchased some tube from you for my Peavey 1x12 Valve King to warm it up a bit. I just have to say YOU GUYS FREAKIN ROCK I never knew that there was so much tone missing from this amp. I am opening a show for Hank Jr. this weekend and I plan to take some pictures and send you guys of my rig with your Eurotubes sticker on the face of my road case and I plan to tell everyone from here on out about your tubes!!!!! THANKS FOR THE TONE and I will be purchasing more tubes from you in the near future for my Musicman Amps!!!!!!!!!!!!

Keep Rockin out!!!!!

“The Redneck Superstar”
Jeremy Richardson
Lead guitarist for:
Eddie Barber and “Off The Wagon”.

From: James B []
Sent: Thursday, June 25, 2009 4:10 PM
Subject: Re: Tubes

Just a quick follow up. I received the tubes in record time and installed them in my '73 Fender Super Reverb. I used the Eurotubes biasing socket and followed the online directions, and, my amp is alive!
Sounding wonderful, strong and sweet. Hope you guys are around at least as long as I am.

From: Ken [] Sent: Thursday, June 25, 2009 2:14 PM To:
Subject: order # 25404

Thanks once again for the outstanding service.

I ordered my tubes on 3-23-09 and received them today 6-25-09.

I thought the Blackheart Little Giant sounded good before, but now it is great. Even my wife who was in another other room said the tome was much improved and she does not often comment!

Both, your products and service are outstanding.
Ken Allen

From: [] Sent: Saturday, June 20, 2009 2:26 PM To:
Subject: Re: Mesa Triaxis

Hello BOB,

Thanks for the JJ tubes for my Triaxis, they have made a huge difference over the stock tubes I was using. The mid-crunch settings (the hardest to dial in with this unit) that were uneven and brittle now have more warmth and definition, and the high gain settings are just right, like a Marshall with manners, lol. I don't need any distortion/sustain pedals to solo with, the sustain and harmonics I'm getting now are
great with just a little G-Major slap echo and reverb.

The hype is true folks.....these peeps know their 'onions', lol.....


From: Bob Cudney [] Sent: Wednesday, June 17, 2009 7:05 PM To:
Subject: Great product, great service, a great find!


Today I received my order for a Marshall DSL EUROTUBE set. I place the order this weekend online, received a confirmation Monday and received the tubes Wednesday. The tubes were packed with care, the receipt professional and complete, and the included instructions informative and useful. Then thanks to you online video tutorial I was able to clean, install and bias and play the amp within minutes. A very useful and enjoyable web site. The Marshall sounds great. Awesome. Thanks so much. I hope your business can kick some a$$ in this economic mess. Hang in there! I’ll be back when I need another

Kind Regards, Bob Cudney

From: Jason Lee [] Sent: Wednesday, June 17, 2009 12:45 PM To: eurotubes
Subject: Satisfied Customer

Just received my tubes today,( #25250 ) and man you guys ship FAST! I'm in NJ and it shipped in 2 days. Just put my tubes in and fired up my AC15cc, didn't have much time to really play into it but the few minutes I had to play it sounded GREAT! Will be playing more later tonight. Thanks again! Will definitely do business with you in the future!

Jason Lee

From: Jake G [] Sent: Thursday, June 04, 2009 12:59 PM To:
Subject: RE: Customer Order: 24936

The 6v6S's in my Hot Rod Deluxe really have improved the overall sound of the amp. I wanted a earlier breakup, with a bit more midrange bite. These tubes give me exactly what I wanted. And the previously un-usable drive channel now rocks! Literally. Its gritty and sounds more like a more natural overdrive. Way less fuzz, and more bark. If your looking to get your HRD to have a little less headroom, and a more versatile rock amp, these tubes are the way to go!

Jake from Birmingham, AL

From: Charles L [] Sent: Wednesday, June 03, 2009 11:16 AM To:
Subject: RE: Tubes

I just finished recording my first session with your tubes last night. I am absolutely blown away at my tone. For so many years I settled for a decent tone...mixing and polishing tones to ultimately arrive at a
point of acceptance with my sound. That has now changed. Your tubes have carried my tone to lofty new hights, passing from tube to tube with feral might. No longer does my Kustom head serve merely as
an "amplifier" of tone. It is now "that which enables aural decimation", elevating the experience of playing to new levels. Simply put - the path from my head trough my hands and onto my recording deck just got a lot more awesome. Consider me among the ranks of your life long supporters.

From: Bill C [] Sent: Wednesday, May 27, 2009 1:42 PM To:
Subject: New tubes

It isn't often that I write to praise a company's customer service, but I just have to do so now. I called y'all last Friday (before the Memorial Day weekend) and discussed my needs and playing style with Eddie. After digesting his information I ordered the standard re-tube kit for my Peavey Classic 30 and eagerly awaited the arrival. Well, even after a holiday weekend, they showed up yesterday (Tuesday)!
Awesome! As soon as I could I swapped out the Sovtek's that were in the amp with the new JJ's and all I can say is "WOW"! The tone is incredible...what a huge difference! Thank you for your great information, great customer service and great product. I will definitely buy from y'all again and recommend you to anyone who will listen.

Thank you again,

Bill C.
Flower Mound, TX

From: Mark & Melissa Johnson [] Sent: Tuesday, May 26, 2009 10:44 AM To: Eurotubes
Subject: New Tubes

Hey Guys,

Well I just received my new JJ 6V6 power tubes today, I put them in my DRRI let them warm up for about 5 minutes and set the bias to 25ma, Well I have to tell you that these tubes are nothing but Heaven, Smooth bass and blows the stock groove tubes out of the water. I will never be putting anything else in my amps from now on. Thank you Jay for all your advice, this amp is like a whole new rig, Now I'll be ordering all my tubes from EUROTUBES. Thank you once again!!!


Mark Johnson

-----Original Message-----From: Krister P [] Sent: Wednesday, May 20, 2009 11:06 AM To: eurotubes
Subject: Re: RE:

Hi again Bob!
I just had to thank you for your great help! I got the tubes and the probe in 5 days (a weekend included), which is very fast considered that I live in Sweden. The biasing was not difficult at all. I ordered E34L Matched Quad +9 ECC83S Gold Pin (one balanced) and a Weber BR-2.

My Triamp is a new amp. And it has become very musically.Before it was harsh and sounded damped. The three channels is now exactly what I wanted, CREAMY and very dynamic overall, with a smooth treble. Keep up the wonderful job that you are doing! Your are the best. You will hear from me again.
Thanks Krister P Sweden

From: Daniel M [] Sent: Thursday, May 07, 2009 4:02 PM To:
Subject: Re: Tubes

I just received and promptly installed the tubes for my Hot Rod Deville and all I have to say is, "Wow." I bought from you guys because of a recommendation from a buddy and well, you have yourselves another VERY satisfied customer. The tubes were exactly what my ears wanted to hear and your service was fast and friendly as well. I really can't say thank you enough. Keep up the fantastic work.


From: Christopher O [] Sent: Saturday, May 02, 2009 12:15 PM To:
Subject: Re: Tubes

I am so happy about getting my tubes from Eurotubes, that I had to send you guys an email.

I ordered a set of tubes from you guys on Thursday, and I just got them this morning (Saturday)! That has to be the fastest shipping I've ever seen. I also wanted to say that my 5150 combo sounds
completely different now (in a great way). It's like somebody beat the life back into it! I've heard clarity and harmonics that I've never heard before!

You guys are the best! If anyone I know needs to retube their amp, I'm sending them your way.

Thanks so much!


From: Joe [] Sent: Thursday, April 30, 2009 7:54 PM To:
Subject: RE: Questions HRDX

Hello Bob,

Took your advice cleaned the tube sockets, installed the new tubes, set the bias at 42.75 for 6V6 in the HRDX. All I can say is wow! No noise, the clean tones are awesome and the drive and more drive channels simply stoke. Thanks I really appreciate your help.

Thanks again.



-----Original Message-----From: Dave Risi [] Sent: Tuesday, April 28, 2009 5:29 AM To: eurotubes
Subject: RE: Customer Order: 24438

Thank you SO much. This amp (Blues jr) sounds absolutely awesome at all volumes. It doesn't break up too early and is very responsive to pick attack once again. I was so disgusted after the last retube (from another source) I was actually starting to amp shop. You have brought my amp back to life and then some. I can't sing your praises enough. The tone is unbelievable.

Thanks again for your patience and listening.

From: Brian Carpy [] Sent: Monday, April 27, 2009 1:35 PM To:
Subject: RE: assistance required with my new tubes....

To Bob & all the guys at Eurotubes....

THANK YOU. I think that pretty much sums it up. Now i have my full set of JJs in my 64 Vibroverb Custom, i can truly say that you have a customer for LIFE. Sure, the amp on its own with the stock
valves (Groove Tubes) sounded fantastic, but the JJs (I went for the gold pin option where possible) just gently smoothed things out. Heck, it's maybe too early to give a full review because I've only been toying for half an hour, but I just HAD to get in touch to let you know how pleased I am with the results!

Fantastic, attentive, knowledgeable, courteous personal customer service and awesome products - that's all you can ask for in any purchasing experience i'd say!

I'd love to write more, but.... i'm going back to play my old blues licks on my newly JJ infested amp - they sound SO damn good!!!

Cheers and thanks again,
Brian Carpy.

p.s. happy for you to print any of the above on your site.

From: M. Monteverdi [] Sent: Tuesday, April 21, 2009 1:55 PM To: Eurotubes
Subject: Re: Carvin X100b

Hey guys,

Just wanted to let you know that after replacing the 8pin sockets, I installed those JJ 6L6 matched quads into my brother's X100b before rehearsal yesterday. All I can say is "HOLY S***!" That
amp sounds a thousand time better. I didn't even know these heads have the capability of sound this good even with great tubes. Now it sounds huge. It's like a whole other amp. My brother uses a Keeley
modded DS1 and with those new tubes, the distortion sounded like being hit with a mack truck. The clean sounded warm and open. Very powerful, musical and harmonically lush. I want to thank you for your business, With in the next month, I'll be returning with my other guitarist's Music Man HD130 for some matched EL34's and a bias adjustment.

Thanks again!

Take care,
Mark Monteverdi

From: [] Sent: Monday, April 20, 2009 5:59 AM To:
Subject: RE: Marshall tubes
Importance: High


Got the tubes Saturday. Had time to put them in last night. (
2006 marshall 1974x hand wired) THANK YOU!!!! SOUND AWESOME!!! Took care of my noise issues. I really like the high gain 83's, just a little more oomph, but not buzzy, very creamy and rich. Sounds great with my strats, my tele and the prs 24 is just right on the money baby!!!!!

Thanks again,

From: Josh Anderson [] Sent: Friday, April 17, 2009 7:18 AM To:
Subject: Re: Tubes (Order Number: 24241)

Good morning to you Jay, Bob, and all the rest of the great folks at

First off, I would just like to say a huge thank you!!! for the simply outstanding customer service that I received from the very start of my "quest for better tone". Also, my compliments on great shipping
service - I placed my order on a Tuesday, and the tubes were in my hands by Thursday afternoon...Wow!!

I have owned my Peavey Classic 30 tweed for about 8 to 10 years now, and I have tried various different tubes over that time period: Sovteks, Electro Harmonix, etc. and the amp always did sound "good", but never really had the sweetness that I thirsted for. I've gigged with this amp, recorded some sweet studio stuff with it, and it even sits at the end of my couch in my living room for everyday playing too - so
needless to say, I have some hours on this baby.

I ordered the 'Low Gain Option' retube kit for my amp and installed these new tubes last night. Wow - even as I write this, I still have this overwhelming feeling over how amazing my old c30 sounded with
these new little tone monsters installed! Just for curiosity purposes last night, I threw on the "Where the Light Is: John Mayer Live in Los Angeles" DVD and fired up my Dolby surround sound the
same time with my vintage strat (in the neck pickup position) plugged into my freshly retubed c30, I was getting almost EXACTLY the same tone as JM's strat(s) on that performance, and he's paying through
extremely high dollar custom Two Rock amps and cabs! Even here this morning, I am still blown away by how truly amazing my amp sounds now, so a major thanks to your fabulous people, your knowledge
of your craft, and your excellent service. Thank you, thank you, thank you!!!

Your brother in tone,

From: Jeff Laser [] Sent: Thursday, April 16, 2009 8:35 PM To:
Subject: I'm Really Happy With These Tubes!!!!


I just wanted to say thanks for a great product!!! The following is from an e-mail I sent to a friend this evening.

"I recently purchased a set of JJ tubes for my TRAYNOR YCV40WR from Eruotubes (Gold Pin) and they arrived today. After I installed them I fired up the amp and practiced for about 35 min. All I can say is WOW!!! What a huge improvement. When I play through the "gain" channel it sounds more like an amp being "pushed" rather than "buzz saw" artificial distortion! The tone is fat, warm, and usable. The clean channel is great too. The "bottom end is crisp, articulate, and not flabby anymore!!! It reminds me a lot of my 1966 Deluxe Reverb that I got rid of years ago. I haven't played either Les Paul through it yet, but the G & L really sounds sweet through it.

When the new FENDER amp gets here I'm going to play it stock for a few days, then I'm going to put some different tubes and either an Eminence Cannabis Rex or a Weber speaker (I see that EUROTUBES sells those) in it if the new tubes (alone) don't make a big enough difference.

I will keep you posted on any progress with the amp when it arrives. In the meantime, I'm going to bond with the TRAYNOR a little!"


From: antonio rivera [] Sent: Wednesday, April 15, 2009 12:11 AM To:
Subject: Satisfied Costumer!

Bob, just wanted to thank you!!

My amp (B52 AT100) now sound 10 times better!!! and i also did the bias adjustment, and damn, what a difference, i couldn´t done it without watching you videos, and reading your website!!

Thanks a lot, i definitely will be back!!

This is not a review per say, but important none the less! It is an email exchange concerning an amp issue.

From: Trubador tv [] Sent: Sunday, April 12, 2009 11:56 AM To:
Subject: RE: I bought your tubes

Dear Bob,

Yup, that was the problem. Although I put them in and out with no cleaner before, when I finally got the cleaner and did it, all the gain and sustain came back in full force. dude, ur the best. Now i have "my
baby" back and we're movign to nashville in 2 days to launch this band. peace brother.

marcoe stone/TRUBADOR
From: To: Subject: RE: I bought your tubes Date: Mon, 30 Mar 2009 17:57:37 -0700
Hi Marcoe:

There is no way we would have time to fix the amp before you need it and the only Marshall amps we have are old vintage amps that we would not loan or rent. I’m not convinced it is an amp issue. Did you
clean the sockets? Even if you did you should do it again.


From: Trubador tv [] Sent: Monday, March 30, 2009 2:05 PM To:
Subject: RE: I bought your tubes

Hi, The amp is breaking again. I ordered the tubes in the first place because when I would play it was way quiter and the sustain was kind of gone.

From: Jerry Tortomasi [] Sent: Thursday, April 09, 2009 6:42 PM To:
Subject: Triple XXX and 6505+ Retube...

OMG! Where do I begin?
I have been completely blown away by the change in both of my amps after doing a full re-tube on both with JJ Tubes.

As crazy as it sounds I went with the high gain tubes for the Triple XXX. OMG! The amp actually came to life like a fire breathing dragon! The XXX is so brutal that I actually had to turn the gain down a bit!

The clean channel is amazing as well!

The amps are so amazingly different that I feel like they are new again.

The cleans on the 6505+ are 100% usable now. The Lead channel is much warmer and much more usable and makes all the difference.

Thanks Bob for all of your advice and for doing such a great service to the tube amp community.

You are the best!
JJ Tubes make everything else obsolete!!!!!


From: [] Sent: Monday, April 06, 2009 8:21 AM To:
Subject: Mesa F50 Hi Gain tube kit

Hi Jay,

Tubes have arrived and I'm very impressed. I've got so much more control over my tone now and I never knew my amp could sound so good!
I'll certainly be recommending you guys to anyone I know with a tube amp.


-----Original Message-----From: [] Sent: Friday, April 03, 2009 8:25 AM To:
Subject: Great Job!

Hey Guys,
I wanted to give you some overdue feedback regarding the retubing of my Traynor YCV50-Blue.

First off, I ordered the E34L retube kit and a bias probe on a Wednesday and it arrived the following Friday. Two days from Oregon to St. Louis is pretty darn good. I must say the overall experience with
Eurotubes, from consulting for the proper tubes, to the ordering process, to the acknowledgement and shipping notifications was absolutely first-rate! Your web site has a wealth of information that I found very interesting and helpful. I have no idea why anyone would buy anywhere else.

The results are astounding! Even at low to moderate volumes, the overdrive is much smoother and thicker. Gone are the grainy, harsh, unsatisfying tones. At higher volumes, the sound stays tight and punchy. The clean channel is warmer, yet still sparkles. In short, these tubes make this relatively inexpensive amp sound as good or better than amps costing twice as much.

Now the technical update info…

Obviously, Traynor has revised the circuit board because it definitely now has adjustable bias. The bias trim pot is easy to get at and clearly marked (I can send pictures if you want). From the notes in the
service manual, this version 14.00 board went to production April 23, 2008. The service manual states to set the bias such that the voltage across R91 and across R92 is 350mv. This was a little scary, as there isn’t much room to make contact with the meter probes. However, even with the old tubes, that reading was initially only about 250 mv, so I think it came from factory biased on the cold side (which probably contributed to the grainy sound). Anyway, this revision probably explains why the amp I got sounded noticeably different than one I had played about a year earlier.

So I got your tubes and bias probe and got it hooked up. The manual points out that the plate voltage should be 410 volts (I took their word for it, since I wasn’t sure exactly where to safely measure it), so the target bias current would be approximately 40-45ma. I was able to easily bring the bias up to that range. Using the bias probe is a lot safer and probably more accurate than measuring the voltage (drop) across a small resistor.

Again, my initial reaction was “that’s more like it!” I think it now sounds better than the one I played a year ago, and the more I play it, the better it sounds. I think the adjustable bias is probably a plus, as it
may allow a little more flexibility in selection to suit a particular need.

Feel free to contact me with any questions.

O’Fallon, Missouri

From: Mark Sanders [] Sent: Monday, March 30, 2009 8:27 AM To: eurotubes
Subject: I admit I was a skeptic

Hey guys, I'm 53 years old and have bought and used so many tubes that were supposed to be the answer and none were...until now...I put the JJ's into my little , cheap class A Crate V3112...low and
behold...I was able to back the gain down significantly on the drive side, it actually sounds musical!! The biggest change however was on the clean actually had SHIMMER!!! Needless to say you guys have made me very happy! Next we will tube my boogie and the central Mississippi juke joints will at last be witness to why tube tone rules!

Thank you from a very excited old man,
Mark Sanders

From: Whitney, Jason [] Sent: Monday, March 30, 2009 5:55 AM To:
Subject: JJ Mesa Mark IV 6L6 Hi Gain Kit Review

Hi Bob and all at Eurotubes,

I am writing to say thank you for a great product and outstanding customer service. I installed the 6L6 Hi Gain kit in my Mesa Mark IV medium head and am very pleased with the improved tone I’m getting. I run the amp through Avatar and Mesa 2x12’s in the lower Tweed power setting and play mostly classic rock and pop in a cover band, along with some heavier old school metal. With the new JJ tubes, getting the sounds I want is a whole lot easier. Thank you Bob for your thoughtful input and fast responses to my questions when I was trying to figure out what tube kit to go with – your recommendations were spot on!

Overall, the new JJ’s smoothed out the brittle highs of the stock Mesa tubes and added more girth to the bottom end on all channels, especially Rhythm 2 and Lead. I play with a ‘bright’ guitar and the new
tubes have made a noticeable difference by making the highs and upper mids more musical. I still cut through the mix, but wasn’t taking anyone’s head off at band practice last night. Even dimed with the ‘fat’
pulled out, Rhythm 2 also didn’t have quite enough crunch and distortion for some of the heavier songs, but the new tubes get me there now. As you said, the extra gain from the preamp tubes makes the lead
tone sound awesome – searing and full – I actually had to lower my volume on the lead channel a little. My only concern with the high gain kit that I asked you about was the effect it would have on the cleans,
but that was not an issue at all (as you said). From pop covers to funk, the cleans were wonderful.

When I first bought tubes from you about three years ago for my old amp and instantly noticed the improvement in my tone, I always knew I’d get more JJ Tubes for any other amps I have. You’ve earned a
loyal customer – thank you again for a great product and great customer service.

Best wishes to you and your team at Eurotubes,


From: Steve Villa [] Sent: Wednesday, March 25, 2009 4:19 PM To:
Subject: RE: Tubes Order #23787


The tubes arrived in today’s mail. I cleaned the sockets, slipped them in, and powered up. I am in tone H E A V E N. I had forgotten how good this Blues Junior Tweed NOS could sound.

Thanks sooooooo much!!

Steve Villa

From: Nik Rubicz [] Sent: Wednesday, March 25, 2009 2:53 PM To:
Subject: Recent Tube Order

Hello there Eurotubes!

I just want to drop you all a line and say thanks for being such a cool company. You deliver great products, and get them out to the customer soooo fast, its kind of unbelievable! On top of the great product, you have something else that is uncommon, excellent knowledge, and unbelievable customer service. I love how much info you have on the website! I called two nights ago and spoke with Bob about a blown fuse in a JSX while I was putting in a retube kit. He gave valuable information, and seemed happy to give it too. the sound on these KT77s is incredible!!! Thanks for the tips!

Anyway, Thanks again to everybody over there for making my guitar tone so much more killer, I really appreciate ordering form you all!!!

Take Care!!!

Nik Rubicz

From: Chris Welborn [] Sent: Friday, March 20, 2009 3:00 PM To: Eurotubes
Subject: Thank you!

Just wanted to let you know how happy I am with the sound of my Classic 30 after my re-tube. WOW! I have to admit to being a bit skeptical. I knew a new set of tubes would probably improve the sound. But I wasn't sure how precise your re-tube kits could get. I went with the high-gain pre's and high headroom powers. That is exactly what I got. The gain from the lead channel is exactly what I was looking
for..more the classic gain, think 80's heavy. Right on. The clean channel is much improved to my ears. Maybe not the headroom I was expecting but the tone I get close to breakup is great. I am, well, just
pleased. Thanks for your help and I will recomend Eurotubes.

Chris Welborn

From: Neil Smith [] Sent: Thursday, March 19, 2009 6:46 PM To:
Subject: Review

You can post this on your site as a review if you want. Thanks for all the help!

I'm a local customer (Oregon native!) and I brought my bias modded 5150 in for a re tube and I have nothing but good things to say about Eurotubes! I'm really naive about tubes and tube amps in general
(but learning!) and these guys really were helpful and patient with me. My amp sounds 100 times better with JJ tubes than with the Svetlana tubes that were in it before. Night and day! Wow! If you have any
questions or concerns they are more than courteous and helpful. It's really refreshing to see such professionalism these days.

Thanks Eurotubes!

Neil Smith

From: Benjamin D [] Sent: Thursday, March 19, 2009 2:33 PM To:
Subject: RE: which tubes are best for my style of music

Thank you very much for the biasing instruction for my Bugera amp. I ordered the jj tubes and bias probe from your site and within two days they arrived and I installed them and biased them in no time. I was
amazed at the sound coming from my amp. I will be doing business with you again. And again thank you.


-----Original Message-----From: Michael Gracon [] Sent: Tuesday, March 17, 2009 3:18 PM To:

Dear Bob and Eurotubes,

I wanted to thank you for processing my order so promptly! I think I ordered it on Saturday and it arrived on Monday. Wow that was fast! I always recommend your tubes to anyone who is looking to either upgrade their tubes or needs to retube their amp. I have been very impressed with the attention to detail that comes with every order that you process. I have done business with you for at least 5 years and will be a lifetime customer. Thank you again for all of your help over the years and making my amps sound their best.

Michael Gracon

From: Kenny C [] Sent: Sunday, March 15, 2009 4:19 AM To:
Subject: Mesa Dual Recto -- KT88/KT66 Hi-gain retube

Hey Bob! I got my new tubes in the mail on Friday just in time for me to install them before band practice! They arrived well packed, and the bundling of the tubes was a wonderful touch! Thank you for the spare fuses and sweet sticker also! I have installed the tubes and have played with them at band practice, I can already feel and hear an extreme difference. You were exactly accurate in the description of the tubes. The Hi-Gain ECC83S preamp and KT88/KT66 power tubes are, in my opinion, the ultimate Rectifier tone. Don't even get me started on those GZ34 rectifier tubes! One word, "tight!" They have the perfect amount of sag and they are almost as tight as the silicon diodes!

I was amazed with how much headroom I got! I used to never turn my gain past 6 because it got too grainy and undefined, but now I crank my gain to 10 and it's tight and precise, and seems like it could go
even further, to say, 11? The mids cut through better than my E34L's did when those were new, and the bass is INSANE! The clean channel sounds fatter than any other amp I've played. It's amazingly clean
with a bell like tone to it. These new tubes have turned my amp into a versatile, fire-breathing monster. If you own a Dual Recto and you are searching for "John Petrucci-esque" rhythms and leads, look no
further than this combination of tubes!

You can dial in awesome rock/metal tones all the way to sweet blues tones. Highly recommended!

Thank you Bob and everyone at Eurotubes! Unbeatable prices, great advice and support! I've recommended you to every tube user I know!

Kenny Shredder

Feel free to post this. Rock on Bob!

From: Chad Lawman [] Sent: Saturday, March 14, 2009 6:37 PM To:
Subject: thanks

Just a note for all you guys at Eurotubes- thank you! I love that I can order high quality tubes, rated exactly how I need them, pay less than anywhere else, receive immediate communication from people I
trust and can dialogue with, and receive the tubes fast. What a great service to musicians! Keep up the great work!

Chad Lawman

From: Michael Boos [] Sent: Monday, March 16, 2009 6:38 AM To:
Subject: Second to NONE

First and most importantly your service is second to NONE. Extremely fast and FRIENDLY. You have been a wealth of information to me every time I call. And when we are done on the phone I always feel good about the next package that will be arriving from your shop very soon. I have re-tubed my Fender Super Reverb, two Fender Hotrod Deville’s, a Fender Blues Jr. and a Carvin VT-50 vintage twin stack with J.J.’s. ALL of these amps have shown a MAJOR improvement in tone. In EVERY case the Bass is clear and full bodied with no flabbiness at all. The Treble is clean and glass like. The mid controls are relevant again and do what they were intended to do. The attack is crisp and yet the sound is warm. I will actually catch myself sitting there plunking random notes just to hear how good they sound now. These tubes are the reason I am practicing more.

A friend of mine just re-tubed his Deville with a set of handpicked Telefunken/RCA/Mullard (whatever) tubes.

In a recent A/B test HE came to the conclusion that MY Deville out does his in tone. I think it had more to do with the fact that he paid THREE TIMES as much for his tube set than I did for mine. PLUS, I had to show him how to bias his amp. The shop where he purchased his tubes told him that should be left to professionals. When I showed him how easy it is to do he was … well … not happy with them.

Thank You for your support, your knowledge and your dedication to making me and my stuff sound

-----Original Message-----From: Gus Butler [] Sent: Saturday, March 14, 2009 8:17 AM To: eurotubes
Subject: Thank You!

To Bob, and all at Eurotubes -

I recently did a full re-tube of my Mesa Tremoverb with the Personal Fave power section and high-gain pre-amp. I was blown away at how great my amp sounded! Everything promised on the site is true: my
cleans are warm and articulate, the distortion is amazing and creamy, and I can add bass without getting muddy! The GZ34 rec tubes are awesome (and tiny!). It sounds like I bought a brand-new amp! And I
cannot say enough about the customer service; it is truly spectacular.

Thank you,


From: [] Sent: Wednesday, March 11, 2009 12:11 PM To: Eurotubes
Subject: re: el84 s for Crate VC3112

hey man, got my tubes today, and all I can say is "WOW!!!!!!!!"...the breakup on the clean channel is amazing, perfect.....I have never heard this amp sound so good in 11 years, very dynamic!!......amazing
breakup, smooth creamy OD, tons of sustain, great balance...I may have to re-think getting a new speaker.....hard to believe this is a Crate...sounds more like a Laney or a Vox.... and thanx for explaining how I can tailor my tone properly!!! and thank Bob for me too!!

Thanx again!!!!

Stephen Leone

From: Kurt J [] Sent: Friday, March 06, 2009 1:39 PM To:
Subject: Re: Tubes & bias probe... order 23408

Hello Jay-

Thank you for the note.

My tubes arrived yesterday, and I installed them last night. Oh, what an awful noise my amp made!! Just at idle (no guitar plugged in), it was a cross between a helicopter taking off and a 60's era police

And then I recalled from your excellent website how one must must must clean the tube contacts, even on my less than two year old pristine amp. I bought some contact cleaner at Radio Shack this morning,
sprayed the tube pins, inserted and removed each tube three times, and alas, all the noise disappeared. Hmm, just like you said.

I have a 2007 Fender Blues Deluxe Reissue (which I don't play loud; in hindsight, I should have bought something smaller). It sounded pretty good to me with it's original tubes (GT/Sovtek), but I like the JJ
6V6's even more (I have the whole tube kit).

Thanks for the fine tubes and for the tube/bias education--I went into this project several days ago knowing nothing on the subject.


From: german r [] Sent: Monday, March 09, 2009 7:02 PM To: Eurotubes
Subject: RE: dual recto

hello again,

i would like to extend my deepest gratitude's towards Bob and the rest of his staff. honestly companies with your level of customer service, INTEREST IN THEIR CUSTOMERS, and just amazing work ethic is non-existent today. you guys stuck with me on the phone and never rushed me answering all my questions, that really made me feel like you guys wanted me to get the best product for my particular
needs. it was like having a group of friends that knew everything there was about tubes, and we all know us musicians love talking about gear for hours on end. so thanks for making me feel like more than just a bag of money, and definitely more like a friend in need of the best gear guidance. OH! and the shipping is insanely fast.

on top of that the tubes are top notch grade A quality. i purchased a KT88/KT66 matched quad, a high gain front end, and the GZ34 rectifier upgrade, all for my mesa boogie dual rectifier. i haven't yet seen this reviewed yet so i will review it and post it on forums i frequent.

this setup really is all that Bob says it is. the GZ34 rectifiers are a godsend for tube purists who want all the mystique and warm tube goodiness in their clean/crunch channels but also need the tight bottom
handling qualities of a silicone diode rectifier. the KT88/KT66 tubes in my amp together with the high gain JJ's in the preamp make my recto into a versatile monster. i get sweet warm cleans, i can get from a
chimey bright tone to a funky twang almost. the crunch channel on this amp before was a bit unneccesary before because i couldnt dial in a tone i liked, now i can get awsome 80's style hot rodded jcm rythms to classic rock crunchy tones very cool channel now, with the solo boost it really does open up and scream if you want it to. but honestly if you have a mesa dual recto you know its pretty much all about the modern high gain in channel 3, this is where the JJ's really took my head clean off. total brutality. kill on contact tone. my amp is now a classified government weapon! seriously sustain for days, im talking clear as day high gain that just pounds your chest with every strum. palm mutes now feel like kicks to the chest, it literally makes you feel hollow, i can feel my organs being shaken (i dont know if thats healthy but i like it!).

this set has made my amp not only a high gain clear as day fun to play inspiring amp, but it has also opened up new tones that i just couldn't get before. awsome tubes, awsome setup, awsome guys. keep up the great work.

please feel free to post this in your reviews.

thank you,

p.s. the prices are unbeatable.

-----Original Message-----From: Steve K [] Sent: Monday, March 09, 2009 6:35 AM To:
Subject: RE: Tubes & bias probe

Hi Jay:

My tube kit (E34L standard) arrived about 2 weeks ago along with the bias probe for my Bugera 6262.After I installed the new tubes and rebiased...the amp sounds great....I am able to get the "Brit" tones I was hoping for. You guys are the best....your knowledge about tubes and amplifiers is second to none in my opinion.

Thanks again

Steve K.

-----Original Message-----From: John Paleos [] Sent: Sunday, March 08, 2009 11:02 AM To: eurotubes
Subject: RE: KT88s in Triple Rectifier...

Thank you Bob, your technical expertise is very much appreciated. Even before I ordered from you, I stumbled across so many positive references concerning you and eurotubes on the internet, and it is
good to deal with a true technical artisan, rather than just another business man trying to make a quick buck. You are much appreciated, and my amp sounds AWESOME. I have been using my Triple
Rectifier in the studio, and get exactly the tone I want without any EQ or effects whatsoever. I love the flat frequency response of the six JJ KT88's. I think the tone of the standard gain JJ 12AX7 preamp tubes are superior in warmth and clarity, versus the more harsh sounding stock Mesa Boogie 12AX7 preamp tubes. Now that I have experienced your GZ34's it doesn't even make sense to me why Mesa Boogie doesn't use them as their standard rectifier tubes, rather than their 5U4GB's. As y'all say there in Portland, "Sweet". Peace bro.


From: Edwin Karges III [] Sent: Monday, March 02, 2009 9:56 AM To:
Subject: Order #23224

I received my tubes last week and I can't say enough about J.J. Tubes. I thought I would try some different brands (the reissue TungSol 12AX7, Shugaung 12AX7) and in my opinion they are crap
compared to the J.J.'s. Believe me, I won't purchased tubes from anyone else but Eurotubes!! I had a gig Saturday night, and my MESA Stiletto ACE sounded great! Since most of the newer tube amps get
their overdrive from the Preamp section, I think it is almost more important to have good preamp tubes, and the power tubes might be a little more forgiving. MESA are overpriced, but the MESA Power tubes (EL34 in the MESA Stiletto ACE) aren't that bad, but I think I am probably going to order another set of J.J. EL34L's. What amazes me is that you sell J.J. Tubes for less than any vendor sells any other brand, so J.J. Tubes are really a bargain compared to other vendors.

Thanks for a great product. I saw a customer review for a Peavey XXX that he wasn't happy with the J.J. Tubes. It sounds like he may have had other issues because that is the first negative review that I have seen.

From: Carpenter, Don [] Sent: Monday, February 23, 2009 7:58 AM To: eurotubes
Subject: US Masters TVA30 - The tubes you sent me are A++++++

Hey Bob,

I was totally digging my US Masters TVA30 head with the stock Rubys, but after plugging in the JJs I'm completely floored. And I mean completely floored. Words cannot begin to describe how amazing this
amp sounds. The Rubys were all their High Grade, sorted type and the 12ax7s were the HG+, so I figured the JJs would mostly just smooth out the amp a little and wasn't expecting what I heard coming
out of it on Saturday.

Thanks for all your support and for providing such great tubes!!

A customer for life,

Don Carpenter

More then welcome to post this review if you like.

-----Original Message-----From: John Paleos [] Sent: Thursday, February 19, 2009 2:41 PM To: eurotubes
Subject: Thank you Eurotubes!

Hi Bob,

I just wanted to thank you and your staff for doing an excellent job in getting me great high quality tubes, at a nice price, with awesome customer service and support. The package was packed well, and arrived quickly in good order. I am extremely pleased with the alternate tube setup in my amp (KT88 retube kit in a Triple Rec), and I could not ask for more in regard to the tubes' awesome tone. Feel free to use this as a customer review.


From: Alton Plummer [] Sent: Monday, February 16, 2009 11:52 AM To:
Subject: Holy Moley! You weren't kidding!

I just picked up my HRDlx from the audio place that worked on my amp. I bought this thing used and nicknamed it “Smokey” because it smelled like an ashtray. I wanted the circuitry checked and while I
was at it had them throw in a Celestion Vintage 30 and your JJ HDX Gold pin set and rebias to slightly “mid/hot” .

HOLY MOLEY!!!!!!! This thing screams with tone out the wazzoo now! It’s like night and day! Its hard to believe its the same amp!

Thank you! I will only use tubes from you now!

Alton Plummer —one tremendously satisfied customer.

From: Tom W [] Sent: Saturday, February 14, 2009 10:04 AM To:
Subject: Bugera 6L6 question

Dear Eurotubes,

First, thanks so much for your great products. I just switched out the stock preamp and power tubes in my Bugera 333XL head, and did so without a problem thanks to your bias probe and multimeter. The
amp sounds INCREDIBLE with your 6L6 power tubes and ECC83S preamps. Way, way better than stock. Besides the fact that my head now sounds warmer, creamier, and at least three times more
expensive than it did before, the lead channel in particular is actually usable now, and compliments the crunch channel nicely. In fact, the transitions from clean to crunch to lead are much more organic. I
couldn't be happier with it!

Thanks again, and feel free to include any of this text on your website.
-Tom Wiehl

From: Justin Snyder [] Sent: Thursday, February 12, 2009 4:22 PM To:
Subject: Thank You!

Just wanted to drop you guys a line and say thank you. I ordered a matched set of JJ E34L's for my JCM 800 2203 reissue head, and they made my amp come to life! I thought that it sounded good before,
but these tubes brought out my amps true sound. More gain, more thickness, but still tight and punchy at the same time. It's a total tone machine! I will never buy tubes anywhere else again, you have made a
life long customer out of me. I will be recommending you to all my friends with tube amps. Thanks again!


From: Luke [] Sent: Wednesday, February 11, 2009 10:16 PM To:
Subject: RE: Tubes

Hello, my name is Luke, i had my brother order the "high gain amplifier re-tube kit" from your website for my Peavey Triple XXX. I would like to thank you first off for introducing me to JJ Electronic; the tubes you sent me have transformed my amplifier into a monster. The stock Ruby power tubes and Sovtek pre-amp tubes sound brittle and lifeless in comparison to the JJ's. I was very pleased with the price i paid for the tubes and amazed at how fast they shipped to upstate New York from Oregon. The information you provided for me on your website, in conjunction with the paperwork you sent with the tubes was also very helpful. If anyone i know ever needs tubes i'll be sure to refer them to Eurotubes.

Thanks again,

-----Original Message-----From: Terrence T [] Sent: Tuesday, February 10, 2009 11:03 PM To: Bob
Subject: Re: Customer Order: 22577

Hi Bob, I just wanted to tell you how happy I am with the new JJ tubes.

The shipment got to me really quickly up here in Canada... might have even been under a week, which is pretty amazing for mail of any kind. I first recorded some test tracks with the amp with the old Sovteks for later comparison. As you may know, the Traynor YCV15, and apparently all Traynor YCV combos, are a real b_tch to work with.. you have to pull the head out of the cabinet and remove the entire cover off the amp chassis to access the tubes well enough to visually line up the pins to their sockets with some degree of confidence. But once apart I followed your advice, cleaning the sockets by spraying contact cleaner on the pins of the new tubes.

After reassembly I plugged in the Tele and .... what a difference! I recorded some tracks again, then compared to the old tracks. With the new JJ's in there it was like someone had taken my ear mufflers off! The amp is now brighter, clearer, way more solid sounding and a little louder. You can really hear the harmonics clearly, even on the gain channel, which I simply assumed would always be a bit muddy, but the JJ's seemed to have cleaned it up a lot. In fact even with the boost on it produces chords with good definition now, whereas with the old Sovteks it was far too muddy for that. The stock Traynor is a great amp, but the JJ's have really opened it up. Can't wait to try Strat, Les Paul and hollow body through it now. Can you tell I'm excited?

Thanks so much for the excellent advice, service, price and those amazing tubes... I now understand why I've read so many praises for Eurotubes. I also really appreciate all the additional info you have your website. All the best.


From: Dan [] Sent: Tuesday, February 10, 2009 9:31 PM To:
Subject: Thank you!

I just wanted to send a word of thanks for your Fender Cybertwin replacement tubes. Not only do they sound great, but they solved my tube rattle. I realize I'll probably have to do this exercise again down the road, but at least I know where to get great tubes! Thank you to Jay as well, for talking to me on the phone about how to get those stubborn tubes out in the first place. And one thing further- Jay reminded me to use contact cleaner when replacing the tubes. I thought I had some but I didn't. As per your site directions, I inserted and pulled out the tube a couple of times to get good contact, in the absence of the cleaner. After re-assembling the amp [a bitch], I was disappointed with a grungy, click/pop sound. It wasn't horrid, but it was unacceptable.

I ran to Home Depot and got the cleaner, took apart the amp and did what I should have done in the first place. The result was a perfectly clean, beautiful sounding amp. For the nay-sayers about contact cleaner, I'm here to tell you- it works! Lesson learned. After cleaning up my guitar pots and jacks, as well as the amp jack, all is quiet and sounds great! Thanks again guys!

Feel free to post this in customer reviews.

Take care.

Dan Mullins
Long Island NY

From: Stephen Hampton [] Sent: Wednesday, February 04, 2009 7:02 AM To: Bob
Subject: RE: Tubes

Dear Jay and Bob.

Just to let you know that I recieved my order and put them into my amp (blues deluxe). Now, I'm not brilliant at trying to describe things but.......... They do more then you said they would! The difference is fantastic! Better than I was hoping for. I WILL WITHOUT DOUBT, be singing your praises for all time. My sound is ALL I was searching for and you chaps delivered it. Thank you for your time and
trouble. I will be revalving my old Kitty hawk junior 1 post haste.

Thank you and triple thank you.

Steve Hampton...........The Old boys Network.

From: Daniel Ganfield [] Sent: Monday, February 02, 2009 6:04 PM To: eurotubes
Subject: RE: Customer Order: 22608


Wow. I put the ECC83S Gold Pin with Matched Triodes in my BK Butler Tube Driver, and it made a huge difference (in front of my Line 6 Spidervalve). Before I could only turn the tube drive level (effect level) to about 10:00 and it started to get harsh and grainy. The 7:00 position is no effect when turned all the way to the left (counterclockwise) and the 5:00 position is maximum effect turned all the way clockwise. No way could I put it past 12:00 before without getting that really harsh tone. Now I like it at between 12:00 and 3:00 and it just sings with all kinds of harmonics and an extremely smooth overdriven distortion.

You said that it would be rich and smooth sounding, but that was an understatement. WOW!!!!!!!!!!!!!!!!! This tube made the pedal at least twice as nice and versatile as before. What is it about this tube that makes it so good?

-----Original Message-----From: BRUCE GATES [] Sent: Saturday, January 31, 2009 4:31 PM To:
Subject: RE: Tubes

Hi, I'm Bruce Gates I just received my order tody #22696, & I just want to tell you how completly satisfied I am with the quality & sound of the tubes & the speedy delivery of them to me, I did not expect them this soon, I thought for sure it would be mon. at the earliest. My Epiphone Galaxie 25 sounds 10 times better than it ever did before, The new tubes also elimnated at least 80% of the awful hum they are known for. I will tell everyone I know in the Chicaoland arear how professional & courteus, your co. & staff are!
Thanks again keep up the good work.

-----Original Message-----From: D J Shepel [] Sent: Thursday, January 29, 2009 6:22 PM To:
Subject: Re: Tubes

Hi; Received the tubes yesterday (Jan28) and plugged them in today. What a fantastic difference! There is so much more harmonic depth, earlier breakup (as I requested); my Blues Jr really grew up.
Rather than spending dough on a speaker, I'm happy it went on your tube package. I think the JJ's should be an option from the Fender dealer. Thanks very much, I am very pleased....let me know if you have a sale on this set, I'll gladly buy another. Then I can buy a t-shirt too!

From: John Remsen [] Sent: Monday, January 26, 2009 6:14 PM To:
Subject: New Tubes

Hey Guys -

I just wanted to let you know that I have had a few weeks to tweak my JSX with the new KT77 (high gain) re-tube kit that I got and I couldn't be happier! The amp sounds amazing and the KT77's are phenominal! I'm playing the amp through my Marshall 1960AC cabinet that has been modified to include (2) Celestion 25-watt "greenbacks" and (2) Celestion Vintage 30's. The sound is amazing!! Thank you so much for all your help and guidance along the way. You've definitely got another customer for life.

John Remsen

From: Todd Bardell [] Sent: Sunday, January 25, 2009 6:56 AM To:
Subject: RE: Tubes
Importance: High

Hey Guys!!!

I received the tubes for my Carvin and my DSL yesterday. 3 days exactly (actually 2 ˝) that’s outstanding…I was getting impatient!

I wasn’t going to do the job on my Marshall right away, because that would involve bringing up your biasing information and since I’m not as smart as a 4th grader, I thought I’d wait for more time (I had
rehearsal that afternoon). So I resolved myself to just tubing up the Carvin at rehearsal (easy job since you told me it was a fixed bias). As my wife walked back into the house and told me she was going for a
ride on her Harley, I figured what the hell, I’ve got an hour, and I can at least get the tubes in the Marshall.

Well…I DID IT!!! You were right, it was easy and I didn’t get electrocuted (I know what it feels like to complete the ground loop on a bad extension cord and have the hospital bill to prove it!!) I’ve biased them to an equal 43 on both sides, once I figured out the direction to turn the biasing screws, it was easy!!

As my wife came home and helped me pick my lower jaw up off the floor, I could do nothing but point at the amp and make guttural noises. I was blown away. I play the DSL through on old ’76 Marshall
cabinet. WHOLY CRAP!!! I had played a show a few months back through an early ‘80’s JCM 800. Sounded sweet, had that AC/DC sound…I’ve worked for and known the owner of the sound company for many years and he let me take that 800 home. I twisted all kinds of knobs to get that same sound through my amp, switching cabinets, the whole deal. I got close, close enough to make me happy, BUT NOW…the amp has opened up, it the low end has tightened up, all the mids and highs, it’s sweet! I’d put it up against that 800, now, anytime; I’m going to take the head up to the music store and A/B it with some stock stuff he has up there, he’ll be blown away.

As for the Carvin…without writing another lengthy description of my musical Zen, now I can’t make up my mind which one I want to play!!!!

Thanks for everything!!



From: Rodney Tambling [] Sent: Friday, January 23, 2009 6:46 PM To:
Subject: review for your website

Please use this review for you website.

I sent Eurotubes an email with questions about my amp. I bought a used Bugera 333xl Combo, and it didn't sound very good. The previous owner had the impedance set wrong and I was worried that the amp was damaged. Both Eddie and Bob responded to my questions with very insightful knowledge of impedance tubes and transformers. I went ahead and bought a bias probe, multimeter, and the KT77
retube kit for the amp. When my package arrived just 2 days after ordering it, I decided to check the factory set bias. It was set at 14mA!. No wonder it didn't sound good. I rebiased the amp with the stock
tubes in it to 37 mA, and already I heard a huge difference in the amp. My cleans were now clean and my overdrive doesn't sound cold and fuzzy. But then the real magic. I retubed every tube in the amp with the KT77 upgrade and WOW..all I can say is WOW. I love this amp. It sings, it soars, it sustains for days, and it does that all without any of the harsh fuzzy overdrive it had before.

Thank you Eurtotubes. I will be buying from you again. As a side note: If you buy a Bugera, check the bias. It seems they don't check this at all from the factory. Mine was set as far off as it could go.

Rodney Tambling

From: Russ Gasper [] Sent: Wednesday, January 21, 2009 10:11 PM To:
Subject: My recent Eurotubes purchase (Attn. Eddie)

Hello Eddie! My name is Russ Gasper. I ordered a retube kit for my Orange AD30TC combo a few weeks ago, and I just thought I'd send a follow-up email after having a chance to really hear the new
tubes. Boy, do they sound nice! My clean channel really sparkles, especially when I'm cranking it. The slight break-up that I get sounds fantastic. As for the dirty channel, the hi-gain option really gave it a nice
kick. Overall, I'm very pleased with how quickly the tubes arrived! Thanks so much for taking the time to explain things to me over the phone. Also, the directions that were provided on the invoice were really helpful. Keep up the fantastic work!! I will definitely be ordering from Eurotubes in the future!

From: Arnold [] Sent: Wednesday, January 21, 2009 7:20 AM To:
Subject: You done it again!

Having been incredibly impressed previously with the sound I got out of my Mesa/Boogie Triple Rectifier once I put a set of your JJs in there, I always knew I'd be buying my tubes from you. Your matched
sextet of 6L6GC's and the high gain front end made that amp really come to life.

Recently, I wanted a second amp with an altogether different tone that I could use in studio and as a backup at shows, and so I recently acquired a used 5150 head. This head's tubes were so old I could
barely hear the individual notes between the feedback (previous owner was a great guitarist, but he was completely tech UN-savvy...I wouldn't be surprised if they were the original stock tubes that came with
the thing) but I still heard something in the head that told me that whatever the cost to get this thing sounding good it had to be mine. I had a repair done to rid myself of some background hum, and then I
purchased another high-gain front end set with a matched quad from you, biased it in the high 30s, and I now have an amp that is even more versatile tone-wise than my Triple Rec. I mean, the testicles on this
amp will violate the front two rows before I even get a chance to!!! I can get a nice shimmering high-end tone that makes every note stick out for those arpeggiated runs that get the ladies going, and I can also
get sooooo much low-end chunk in my breakdowns to inspire all the dudes to hurt each other. This is perfect!!!

You seriously have a customer for life!!!

-Arnold Hablewitz
Now living in the bay area

From: [] Sent: Wednesday, January 14, 2009 3:10 PM To: Bob
Subject: Re: Customer Order: 22294


Received the JJ tubes for my Blues Junior and have run them 4 or 5 hours. Wow. Warms it up really nice. Opens up the low end tremendously (the speaker isn't quite as bad as I thought) and the highs are
strong, clear and sparkle without nearly as much of the small box sound. Great tubes.

Back soon for a set for my Deluxe Reverb.

Thanks again,

Ross Thompson

From: Brad Armentrout [] Sent: Saturday, January 10, 2009 7:32 PM To: 'eurotubes'
Subject: RE: Tubes!

I cannot believe how much better this amp sounds with the JJ ECC83. It sounds GREAT now. Amazing considering there is only one tube in the amp (Carvin R600). But everything about the amp is better now.

Thanks so much!

From: Kyle Hartman [] Sent: Saturday, January 10, 2009 2:19 PM To:
Subject: Thanks!

I just wanted to let you know that, per your suggestion, my '78 Marshall MKII is sounding awesome with a pair of KT88's in them (re-biased, obviously). They have absolutely thickened it out, and it's a great
thing to be getting all overdrive from the amp itself. So, thanks!

A very happy customer,
Kyle Hartman

From: Andrew Jeffries [] Sent: Monday, January 05, 2009 5:47 PM To: Bob Pletka
Subject: Blues Junior


I just got the tubes today, and I spent a good while with the amp. MAN does this thing sound way better. Thanks for hooking me up!

This is definite must for anyone with a Blues Junior.

Thanks again so much,

From: bobbie hotard [] Sent: Friday, January 02, 2009 11:06 AM To:
Subject: Tubes and attentuator


Thank you so much for your customer service and honesty!!!

This is Bobbie Hotard from Thibodaux, Louisiana and I received my Weber Mass Lite Tuesday, Dec. 30. I just wanted to let you know that I fell in love with it and I am now getting that Classic Marshall
Crunch from Channel A on my JCM900 halfstack; plus, some serious amounts of gain through Channel B by using the Weber. Along with my Les Pauls, JJ tubes, Vintage 30s, and the attenuator, I'm achieving the tones I love at a reasonable level. I can't wait to try it with the band!!!

Thanks again,

Bobbie Hotard

From: Rachel Fishbein [] Sent: Friday, December 26, 2008 9:14 AM To:
Subject: Thank you!!!!

Good morning,

Just wanted to tell you how happy I am with your company. I ordered some tubes for my fiancé (order #21959) Then I called on Dec. 22 (Monday) to see if there was any way I could receive it by Christmas….

The gentleman who answered the phone was so nice and helpful, and even despite all the snow you guys had to deal with; I received the package just in time on Dec. 24. I had such a great experience with your company and my fiancé was extremely happy with your product, we will tell everyone we know about you!

With great appreciation,

Rachel Fishbein

From: Virg [] Sent: Friday, December 19, 2008 1:17 PM To:
Subject: Eddie....tks!!!

Wanted to let you know how pleased I was with the retube on my Champ 600.
Can't believe the difference in clarity, smoothness and the overall increase in body...fantastic.
Running thru a 12" cab with a's superb.
As an added note , the single coil hum from my Carvin,Strat,Tele,and Hamer(P90) has been reduced significantly....added bonus.

Great work!! Tks again
Virg B. - Seabrook Tx.


From: Bill Johnson [] Sent: Thursday, December 18, 2008 2:28 PM To:
Subject: retube set,

hey bob, and every one at eurotubes!

just a short note to say thanks for all your help with my amp, and new set of tubes. my JCM 900 has never sounded as good as it does right now, i can't stop playing it!

i can honestly say these are the best sounding tubes i have ever used, and will never use another brand!

i am now a JJ'S junkie!

thanks again for everything! and happy holidays!
bill johnson
aka: digger stone / stonebullits

From: Embarq Customer [] Sent: Monday, December 15, 2008 4:23 PM To:
Subject: Thank You

You folks are unreal!! I order the tubes and you ship same day. And, that's just the beginning. My tubes arrived today and I was able to get them in my new Blankenship Amp and give them a try.
Unbelievable!!! I mean, I knew they would be real fine tubes, as this is the fourth amp that I've put JJ's into. This Blankenship is a sweetheart of an amp and the JJ's are the perfect compliment. And you were
right.... these 6L6's stopped the tube rattle.

Again, thanks to the whole crew at Eurotubes. I'll keep recommending you to anyone who'll listen.
Danny Reese
Naples, FL

From: [] Sent: Tuesday, December 09, 2008 8:50 AM To:
Subject: JCM900 Tubes


Just wanted to send my thanks to Eddie for the work that he put into my JCM900. I've finally got a beautiful clean channel AND that dirty Marshall tone that I've been looking for. I knew it was in there
somewhere, and Eurotubes found it. Now I can't stop grinnin' when I play.

Thanks man, you guys are the best!

Jim Fitzgerald
Shotgun Overdose

From: vincent courtoy [] Sent: Friday, December 05, 2008 10:38 PM To: Eurotubes
Subject: Re: Advice?

Hello again,

I just wanted to say that I got the tube and installed them in my HRD and it sounds AMAZING. I had been considering buying a new, much more expensive amp, but now that's out the window. I'm getting
the clean tones that I'd dreamed of and a very usable and pleasant overdrive. Thank you so much!


-----Original Message-----From: [] Sent: Monday, December 01, 2008 3:42 PM To:
Subject: Re: Customer Order: 21531

Thanks for the feedback. The amp (Hotrod Deluxe) is running perfectly now and the JJ's have improved the sound dramatically. I run an extension cab under it and I think it sounds even better now than my bandmate's Mesa Triple Rec. I really appreciate the customer service and I will definitely be getting all my tubes from you guys in the future. I've been telling everyone that the JJ's are just as good as any of those expensive NOS tubes. Thanks a ton, Vince M

From: Anthony Sam [] Sent: Friday, November 28, 2008 6:37 AM To: 'Bob'
Subject: RE: Customer Order: 21533

You’ve done it again!

A friend of mine owns a custom built amp and he had just about given up on it because it sounded so bad. He took it to a local “tech” who supposedly gave it a tune up and re-tube. He was so unhappy that
he was going to trade it in on a solid state amp because he didn’t want to be bothered with tubes anymore! I asked him if he’d let me take a look at it before he did anything drastic .

When I heard it I was pretty sure the tubes were junk and when I looked inside I saw exactly what was wrong, no 2 tubes matched! The pre-amp section which should have had 3 12AX7s, had single 12AX7, a 12AT7 and a 12AU7! The 2 EL84 power tubes were a mess, they were mismatched and the pins were actually corroded. Anyway, I told my friend what was wrong and I told him that I believed that a properly matched set of JJ Tubes would solve everything. I offered to fix up his old amp if he’d spring for the proper tubes and a Euro Tubes T-Shirt!

He agreed and I placed the order right away. As always, you’re service was excellent, the tubes arrived in 3 days and in perfect condition. After giving the chassis and tube sockets a good cleaning I installed
the new tubes. I guess you know how this story ends. The amp sounds like a million bucks and I look like a genius!!

Happy Holidays to You and Yours,

From: Senter [] Sent: Thursday, November 27, 2008 10:12 PM To:
Subject: Order # PO Engl Thunder Hight Gain Option


I just recieved the tubes I ordered on 11/20/08. Recieved them on Nov 28, 08... Excellect shipping...Especially since I got them in Okinawa 8 days after ordering... Now for the good stuff.

First off, I am an Avionics Technician in the AF and even though I work on some pretty intense electronics... For some reason I have never tried to bias my amp... I am 2LM quailfied on soldering to include multilayer circuit board repair, I have always thought there was some big secret involved with biasing an amp atleast that is the way most amp techs make you think... Now I would have to say I was pretty foolish into thinking this... I had the Engl biased and up and running in 15 mins... and what a difference it made... Tone, clarity and most of all the buzzy gain, and harsh harmonics from the original tubes is history. Thanks Eurotubes!!! Oh and Thanks agian...Now maybe that V30 has to go and a Weber Silver Bell is in the future... I will be giving you a call...


From: Josh Smith [] Sent: Sunday, November 23, 2008 5:38 PM To: eurotubes
Subject: thoughts on my new integrated quartet

So i just put in my 6l6/Kt88 integrated quartet in my 5150, all i can say is F**K!!!
my amp's balls have tripled in size, it used to sound pretty harsh in the high mids through my V30 cab, but the natural low-mid growl of the 5150 has come through the woodwork and all the high-volume
harshness is gone, when i hit palm mutes it feels like my balls are being rammed by a freight train!!! and it was plug & play, took 15mins to get the thing into action. I am so happy, thankyou so much guys, I will forward all plastic surgery bills for audience's face-melt reconstruction to you as they come.
Josh (from Aussie)

From: Steven R [] Sent: Monday, November 17, 2008 7:32 PM To:
Subject: Mark 4 full retube

Hey ET,
I just have to say thanks for having a very well constructed website that is extremely informative. Without the information you have provided on there about tubes, I probably would have kept on ordering tubes from Mesa Boogie. What a difference JJ tubes have made in my tone. At my last band practice, all I did was swap out my old preamp & power tubes leaving (for now) my amp settings the same, except I did turn my volume down a little. The rest of the band accused me of playing my amp louder (in a good way) because they were not use to hearing me so well in the mix. Naturally, what they were hearing was the extra punch in the midrange and the increased sparkly fidelity of the higher frequencies (key word: fidelity). I had instant satisfaction from just swapping tubes. Now I have to spend time with my "new" amp dialing in my reborn tone, which is no short task on a Mark 4 but I am definitely looking forward to it.
Thanks again.

Steve (Cincinnati)

From: John Parker [] Sent: Friday, November 14, 2008 4:21 PM To: eurotubes
Subject: Re: Customer Order: 21302

Thanks for getting the tubes out fast!

It is unbelievable how these changed the tone of my NOS Blues Junior. So much better now!! night and day better!! In fact, I spent all afternoon discovering tones in this amp that I had not been able to get

Thanks again and look forward doing business with you again.


From: Don Counts [] Sent: Monday, November 10, 2008 4:38 PM To: Eurotubes
Subject: Hot Rod Deluxe Blues Option 2


I recently purchased your HRD Blues #2 (6V6) tube set and wanted to tell you how happy I am with the results! The clean tone is a smoother and maybe a little thicker than before, but the "Drive" and "More
Drive" channels are vastly improved - much more flexible and useful. With single coils (G&L ASAT Classic or Gretsch w/ Dynasonics) I can get a "just barely distorted" sound all the way to a great hard rock crunch. And even on the "More Drive" setting, both guitars clean up nicely when I roll back the guitar volume. My LP-style Agile (AL 3000 - good axe for the $) also sounds much better. Naturally the
humbuckers are a lot hotter than the other pickups. With my old tubes (especially the 12AX7 in V2) the distortion came too early and above a certain level, wasn't usable to me. Now, I get a greater range of
mildly, moderately, and heavily distorted tones with this guitar. I haven't tried my Strat yet - having too much fun with the Gretsch for now. And based on my Fulltone OCD, the new tubes make my amp more
"pedal friendly." Yes, there's some volume loss but I always mike my amp when I play so that's not a concern.

Your tubes have greatly improved my tone and increased my urge to play. And your biasing instruction (included with the tubes and on your website) were foolproof. Good job!

Thank you!!

Don Counts
Severna Park, MD

From: Eric Scanlon [] Sent: Monday, November 10, 2008 3:18 PM To: eurotubes
Subject: RE: Retubing a Marshall DSL100

I am just writing to thank you all for your advice and assistance. You guys were unbelievably helpful in sorting through the murky bunch of information/misinformation I had been given when trying to learn about tubes for my amp. I ordered the full retube kit (the high gain option with JJECC83s and E34Ls) for my Marshall DSL100. I put in the order on Friday and had them at my house on Monday. I put them in and biased the amp myself per your video - it feels great to no longer be at the mercy of a tech. The amp sounds amazing. The clean channel now produces a tone that is rich and chimey with a sparkle that I cannot believe is coming out of a Marshall. The lead channel has incredible definition and is very punchy with a deep tight low end, ballsy mid-range bark, and has lost that unpleasant harsh and brittle top end that it had with the stock tubes.

Thanks again for your help - I have already recommended you guys to pretty much every other guitar player I know.


From: Joel Schommer [] Sent: Saturday, November 08, 2008 3:02 PM To: eurotubes
Subject: Re: Customer Order: 21134

Hey Bob, Just had our first practice with my JJ retubed SVT Classic. One word...HUGE!! The lead guitarist was totally impressed. He agrees..."tubes are good". Thanks again for your advice and quick


From: Steve Hill [] Sent: Thursday, November 06, 2008 5:34 PM To: Bob
Subject: Re: Customer Order: 21243

Thank YOU !!! Holy sweet tubular god ! My Marshall TSL now sounds like the creamy smooth thunder beast that it should sound like. I tossed the E34L Gold pin set in and followed your very informative "how to bias" video ...and when I plugged my strat in it was as if angels from heaven just flew from my speakers. Everything sounds so clear and smooth. I shall become a disciple of Eurotubes...I highly recommend them to all tube-heads.

Thanks......Steve Hill / Strict9 ...Turner,Maine

-----Original Message-----From: [] Sent: Saturday, October 25, 2008 7:33 AM To:
Subject: Gold Pin Tubes

WOW! I recently installed a set of JJ gold pin preamp tubes in my Traynor YCV20WR. What a noticeable difference it made. The tone is just what I was looking for. I had no idea they would make such a
difference. I'm going to tell all my friends about them.

Nick Kepics, aka Felonius Punk

From: [] Sent: Tuesday, October 21, 2008 10:43 AM To:
Subject: I'm Astonished ...


I'm astonished at how different ... and how awesome! my Mesa F30 sounds with the full retube kit that you sent me.

It chimes, it rings, it sings, it melts hot drippy caramel fur over every note... beyond words ... just unbelievable !

The tone has a depth and dimensionality that simply was not there before.

Thank you to Jay for spending the "quality time" with me to help determine eactly which tubes would be the best picks for my style of playing - I took his advice and it was right on the money!

I have already sent two other players your way and will certainly continue to do so ...
Eurotubes is a treasure ... Thank you for what you do.

Joe Gadoury

From: Ernest R_EER Custom [] Sent: Monday, October 20, 2008 10:23 PM To:
Subject: JJ tubes and weber speaker for marshall

I ordered a JJ tube set and a weber speaker for our guitar show amp (Marshall DSL 401) a month or so ago and have been meaning to let you know how they turned out. The improvement is significant and well worth it. The amp is very pleasant to use now - quite a few complements at the last show we were at on its tone.

I have put a link on our website to yours hope it brings you a little business.

EER Custom

From: SAM WARD [] Sent: Sunday, October 19, 2008 12:20 PM To: eurotubes
Subject: Re: DSL 50 valve problem, please help?

Hi again,

The JJ E34L valves i ordered arrived and I fitted and biased them the same day (thanks to your website video tutorial). I was eager to try the valves as you had recomended them based solely on our discussions about the type of music i play and listen to. You must really know your stuff, these valves punch out the exact tone you described and more importantly exactly the tone i wanted, sort of "ACDC meets Cream". They truly blow the original Marshall valves away in terms of tone and body. I am so pleased, my DSL50 is like a new animal now and with the deeper and fuller tone recording has become a new science to me. Fitting multi guitar tracks into mixes is far easier now as each of the amps adjustment "pots", bass, treble, middle and gain etc seem to have extended range. Basically there are far more varied tones available to me now than with the original valves on board and all come with slightest of tweeks to the amps tone controls.The clean tones on this amp are now so smooth and rich, I no longer need to have the reverb on full to stop it sounding thin and brittle - Brilliant! 

I am genuinely thankful for all your advice and help as at the time you didn't even expect an order. I'm so pleased we could do business as even with the shipping and taxes to U.K the valves are cheaper than i can get them in England. Thanks once again, i will be in touch.

Kind regards

-----Original Message-----From: chris cary [] Sent: Friday, October 17, 2008 5:04 AM To:

Just wanted to thank all of you for your support at Eurotubes. The correspondance via phone with all my
questions was helpful and the Video for biasing was right on the money and easy to follow. I will
definately be passing on the good word to all my industry friends.

Chris Cary
Guitar Tech. for:

Former guitarist Tommy Skeoch of Tesla
Current guitarist Dave Rude of Tesla
Current Bassist Brian Wheat of Tesla
Current Guitarist Dave Meniketti of Y&T
Current Guitarist John Nymann of Y&T
Current Bassist Phil Kennemore of Y&T
Current Guitarist Domo of Poets & Pornstars and Run Devil Run
Current Bassist Sally Hope of Poets & Pornstars and Run Devil Run

Chris Cary

From: Larry Martin [] Sent: Friday, October 17, 2008 4:47 AM To: eurotubes
Subject: Crate V18 low gain retube kit

Hi Bob,

Just a note to tell you how I appreciate your business and great information. I just put in your low gain retube kit for my new Crate V18-112, and it makes a HUGE difference. I thought the stock amp was ok, with a good tone, but not much clean to fairly clean head room. (but still a great buy at $150!) I didnt like the overdrive. Anything above 2-3 on gain produced a "papery" unpleasant distortion. I had real
doubts that I would be able to gig with it.

Now with the JJ's, the amp seems much more alive and organic, with louder clean tone, and inspiring semi-clean up to about 5 on the gain. All settings are more responsive to my touch, and this feedback makes me play better. I even think I will be able to use the higher gain settings live, which would be an unexpected bonus. The distortion has a much better character now. Less rough and fuzzy. More focused -maybe a bit more mid-rangy. Tone controls seem more usable now.

I am looking forward to playing out with this amp. Hopefully good results. Sound is much different in a live setting. Things dont always sound the way you think they will. I am optimistic.

Larry Martin

From: Aaron Hoover [] Sent: Thursday, October 16, 2008 9:32 PM To:
Subject: Supersonic Re-tube

Hey guys,

I got the package today. Thanks as always for the prompt shipping!! You guys really are great to work with, because your customer service is exactly the way that it should be – you SERVE the customers!!
Hats off to you!

I plugged the little golden boys into their respective slots tonight, but I only had the chance to turn on the amp and test them out at low volumes. Hopefully I will get the opportunity to warm them up a little bit
more tomorrow night. I can’t wait!!

Thanks again,

Your loyal customer – Aaron Hoover

From: Jim L [] Sent: Thursday, October 16, 2008 4:27 PM To:
Subject: Integrated KT88-6L6GC-High gain Option for STOCK 5150's

Hi Bob!
I just received my tubes for my 6505. I haven't played it at gig level yet, but the low volume sound is amazing. I can't wait for band practice this Sunday. The bottom end is incredible now, the clean channel
is MUCH warmer and the distortion at low volume is fantastic. The old setup was 4 Ruby 6L6GCMSTR, 2 Sovtek 12AX7LPS & 3 Electro Harmonix 12AX7EH. This sounds like trash by the way.

Anyway, thanks for the awesome work/research Eurotubes is doing.


From: Dan Ove [] Sent: Tuesday, October 14, 2008 1:54 PM To: eurotubes
Subject: Holy Moly!!!

Hello Bob,

I didn’t have time to put in and bias the JJ powertubes (KT66's) until this weekend. Just had the first real test/rehearsal tonight and I have to say I have never ever heard anything so beautiful! Just freakin’
amazing! (pardon my French – I’m Norwegian). Sounded great with the JJ preamp tubes, but now with the JJ powertubes it just sings, screams, moans… Fantastic harmonics and feedback! And it’s got balls too - all signs of mushyness is completely gone.

Just bought another used Marshall VM so I can run stereo.. Feels like being in love – the wait until Sunday will be unbearable. :$ Forever thankful for you advice - the VM and JJ is just a gift from above!

Dan Ove

From: Ty Schell [] Sent: Friday, October 10, 2008 11:11 PM To:
Subject: High Gain Pre's and KT77 !!!!

Hey Bob, wanted to let you know that I'm in aw of the tubes I received from you. I was ready to Sell my Peavey Triple XXX, I had a new set of pre's and power tubes ( 6L6 Winged C ) and I thought I had a blown speaker or two, the amp simply farted, but I thought I would give the high gain 12AX7's and KT77 a try, and holy $hit what a difference. this amp is truly a fire breathing monster. Very, very pleased! I have your JJ tubes in all of my amps now. ( Carvin X-100B, Carvin MTS, Carvin Legacy, and now in my Peavey Triple XXX) I will always get my tubes from you. Thanks again!!!

-----Original Message-----From: [] Sent: Thursday, October 09, 2008 1:00 PM To: Eurotubes
Subject: RE: Tube Help - Rivera R55

Eddie and all at Eurotubes,

I just wanted to say thank you for the amazing job you did retubing my Rivera R55. I got to use it at my Portland Marathon gig this past weekend and it sounded amazing.

I am also doing the American Diabetes Run/Walk event this weekend and can't wait to use it again.

I pretty much did away with my overdrive pedals.

Ruben Monreal

From: John Barry [] Sent: Thursday, October 09, 2008 5:43 AM To:
Subject: Thanks

Hey Bob, thanks for all your help. I have always loved my amp, (900 Marshall) and its always sounded great to me. But I cant belive how good it sounds now. I am amazed. tight punchy and warm. louder than its ever been and sounds killer at bedroom practice volumes. the lead channel both sings and screams and the clean channel sounds beautiful. after I biased it put it back together and set it up, I got on it and was instantly blown away. I just cant belive it, thanks again, Johnny.

From: Santiago Besasso [] Sent: Wednesday, October 01, 2008 8:06 PM To: Eurotubes
Subject: Tonal bliss

Hello Bob,

Finally after a long wait i got to change my tubes!!!!! I ordered them a month ago, but send them to my brother in hawaii, he has just arrived to Argentina where i live.

hmmmmmmm, I already done this, and u might have gotten billions of emails, stating the same great things...... MAN THIS TUBES..... THEY ARE THE BOMB!!!!!!!!

I mean, i changed them, rebiased the amp. (deluxe reverb reissue) First impression, i notice a dramatic change in the eq, i mean, i had to change the knobs dramatically to previous settings with the factory tubes. Then i start experiencing such beautiful bass response, so much more harmonic detail.... and the warmth.... how can i start describing the warmth. So goddamn wonderful, heavenly warmth. And believe me, that was 3 minutes after flipping the power switch... I was at my tech´s house, checking something with my strat too. Playing a note once in a while... as the tubes started cooking, i started experincing a tone hard to believe... i kept on saying... man, i can´t believe what´s coming out of this amp. i started playing and wouldn´t listen to what he was saying, we both laughed and couldn´t believe. I had just met this tech, and by the way, he sells and matches jj tubes too.... the best current production tubes... PERIOD. I then came here to my house to keep on enjoying the tone... I have a gig this weekend, i will punish this jewels some!!!!

Thank u once again for providing, tone experiences and such Joy....
and thank you for answering my questions........
Kind regards,
Santiago Besasso

From: [] Sent: Thursday, October 02, 2008 7:09 AM To:
Subject: Thanks!

I just recently ordered a set of new tubes for my JCM800. I received them yesterday, and through the help of your website I was finally able to retube and rebias my amp myself. Its a nice feeling to be able to
do this, and save some time and $. Thanks for the information, and great service!

From: Fletcher Whipp [] Sent: Monday, September 29, 2008 5:11 AM To:
Subject: Eurotubes big thumbs up!

Hi guys,
My name is Fletch Whipp. I am the owner of based in Colorado Springs, CO. I manage our studios and play professionally fulltime. Though I have a variety of amps, my main amp is a
custom shop modified Mesa Boogie Road King II.

The RK II is an incredibly versatile amp, yet shipped in it's stock form, gain definition and clarity could be better. I sent it to a local guru in NYC who modified it adjusting the circuitry on Channels 1 & 2, gain
boost, NOS Mullard EL34's, mercury magnetics trannie etc. The amp arrived back vastly improved with a good useable pallet of tones in hand. Once it arrived back I removed the Mesa rectifier tubes, and took a chance with the GZ34'S from Eurotubes. The tone instantly improved, and tidied things up quite nicely.

I have a totally dialed, beautiful bubbly clean sound, and the 4th channel saturated high gain/lead sound is stellar. The 3rd channel is good with a nod towards a Marshall Plexi/JCM800 sound, and channel two
is ok, however neither channel 2/3 was close enough to be satisfying. I spent an entire weekend working with the amp, cabinets, guitars, cabling etc to find 'that' sound, to no avail. I remembered Eurotubes, and revisited your website and had a look at the front end options for the RK II. I saw that you offered a 'smooth' front end setup consisting of Gold pin ECC83's etc, and thought, lets give it a shot.

As usual, shipping was light speed, and within 5 mins old tubes were removed and new tubes installed in your recommended configuration. Within 60 seconds Channel two was much closer to what I was after, same with channel 3. With another 5 mins I had dialed both of these channels to a point of bliss..... amazing!!

So, a sincere and heartfelt thanks to you all. I now have a worldclass amp that truly offers a significant spectrum of classic and modern sounds. The warmth and character of this amp would not be fully realized without your recommendations. Adding various boutique overdrives to the amp also sounded spectacular.

Cheers, you guys rock!!

The Music Factory

From: Al Creque [] Sent: Thursday, September 25, 2008 6:43 PM To:
Subject: WOW!

Hi Bob-
The re-tube kit for my Fender HRD 212 arrived today (Thursday) – just two days after it shipped from your place. That fast considering I’m in Cincinnati, Ohio.

After installing the tubes and biasing to 90 mv, I was blown away by the improvement in tone from the amp. Great clean channel tone, and the drive/distortion channels never sounded this good. Also, this amp always had a problem picking up 60 cycle hum. The new tubes seem to have cured that even when playing a single coil pick-up Strat with the same cable. The amp sounds better than it did new! (I bet you hear that all the time).

I was unhappy with the tone from this amp before installing the new tubes, and was considering trading it in for something else. Now it is a keeper. You have another customer for life. Thanks for the fast
shipment, the web video on how to bias the amp, and the expert e-mail advice before the purchase. You’re the best. Many, many thanks.

Best regards,
Al Creque

From: Clancy, A [] Sent: Sunday, September 21, 2008 12:15 PM To:
Subject: Thanks

Hey guys!

Just wanted to say thanks for dealing with the best tubes in the world. I love them The preamp tubes I ordered from you guys made my Bugera 6262 amp sound amazing! I bought some of the high gain ECC83S and they made a huge difference in my amp. The gain channel on my amp is a lot tighter and more defined, less sizzle as well. I was curious how big of a difference they would make when I had ordered them. WOW…big difference. If I ever need any replacement tubes or tubes to experiment with you guys will be who I come to.

Thanks again
Andy "Seth" Clancy

From: Leone Joseph BC US [] Sent: Sunday, September 14, 2008 6:30 AM To: Eurotubes
Subject: RE: Recommendation for a Blues Junior NOS amp

Hello Eddie,
Just wrote again to tell you that after a month, I am even happier with the improved sound in my Blues Jr. NOS with the set of JJs you put together for me. I also recommended my friends ( professionals and
friends) contact you at Eurotubes to design a solution for their amps. The personal touch is very refreshing. In fact, I just rated the amp on Harmony Central ( see tweed Special edition reviews) and gave you and Eurotubes a big plug for the place to go for the personal touch, expert knowledge and quality products.

Best Regards,

From: [] Sent: Friday, September 12, 2008 10:56 AM To:
Subject: THANK YOU!
Importance: High


I ordered 2 full retube kits for my Mesa amps and I just want to say you have a new loyal customer from here on out! Thank you so much for your wonderful service, quick delivery and quality products!
I shall always recommend EURO TUBES to everyone and your sticker is snuggly fit on my back windshield!

Francisco Berrios Aguirre

From: Dave Mauldwin [] Sent: Thursday, September 11, 2008 7:16 AM To:
Subject: WOW!!!!!


I got the tubes and immediately installed them in my HRDx last week, set the bias as per your video and MAN!!!! The tone is absolutely incredible. I’m finding new settings for my pedals and loving all the rich, sweet tone from this amp has to offer now. I can’t thank you enough but I have been telling everyone of my guitar buddies and anyone else who’ll listen to buy their tubes from your site! I also posted a blog entitled “Tubes are tubes… aren’t they?” on my site. You certainly have made an impact on the tube replacement market! I WILL NEVER BUY MY TUBES ANYWHERE ELSE BUT FROM EUROTUBES…. PERIOD!!!!! Dollar for dollar the best guitar gear investment I’ve EVER made in the search for good tone!


Dave Mauldwin

From: TJ Lincoln [] Sent: Saturday, September 06, 2008 2:35 PM To: 'eurotubes'
Subject: RE: Retube for a Mesa roadster 2x12

I got my tubes today, (6L6/GZ34 gold pin option) installed them and all I can say is WHAT A DIFFERENCE! I thought I had dialed in the tone before, I think I found the perfect set.

I also perceive less hiss on my channel 3 & 4 gain channels. Is this possible?

Thanks so much Bob!


From: Joel Schommer [] Sent: Wednesday, September 03, 2008 6:27 PM To: eurotubes
Subject: Re: Tubes!

Hi Bob, The tubes arrived today! Super fast shipping! My Aguilar DB680 has never sounded soooooo
GOOD! Super hot. Thanks for all your help. I look forward to doing more business with you in the future.

-----Original Message-----From: Jonathan Woolner [] Sent: Saturday, August 30, 2008 12:52 PM To:
Subject: Anderson Amp


I just wanted to thank you for making me aware of Anderson Amps. I contacted Jack about 2 years ago and put my name on the list. The day has arrived and I now own a 45 watt anderson head. It is hands down in the top 5 of my all time favorite amps. I don't know how he does it but this amp is so sweet. Thank you so much for making us aware of builders like Jack. He deserves the best and was a pleasure to work with.

You're awesome. By the way; the amp is loaded with jj's. great tubes and great tone.

Jon Woolner

(So cool to hear you like the Anderson! Jack's a great guy and we simply love our Anderson amps! Bob and crew.)

-----Original Message-----From: [] Sent: Thursday, August 28, 2008 7:49 PM To:
Subject: My Splawn

Hi Guys,

Just wanted to drop a note and say the Splawn is rippin'!

I wanted to also say that I was very impressed with Eddie. He was very friendly and patient with my many questions and really seemed to know his business - very professional. Anyway, the amp sounds
great. Thanks a bunch.

-Matt in Camas

From: kasakatz [] Sent: Tuesday, August 26, 2008 6:18 PM To:
Subject: Still enjoying my ECC83Ss

Hi Bob,

Just a note to say that after 2 years I am still enjoying the ECC83Ss I got from you in my home stereo preamp. Best it has ever sounded. I was passing your name on to a friend in NYC and thought I'd let you know I still appreciate your quality product and the excellent service you gave me two years ago! I'll be back.


From: Jared Grycko [] Sent: Saturday, August 23, 2008 8:01 AM To:

I just wanted to thank you for your excellent service and expertise. You may remember me as the guy who walked in owned the Kustom amp. I needed more headroom and your selections really helped! My
amp has never sounded better. I played a gig that night and was getting the sounds I was looking for.

Thanks again and I will be a repeat customer!


From: Don B [] Sent: Thursday, August 21, 2008 2:37 PM To:
Subject: ECC832-12DW7







From: Josh Moyer [] Sent: Wednesday, August 20, 2008 9:36 AM To: eurotubes
Subject: Re: Some help with choosing tubes please

Hey guys,
I just wanted to recap on my order from you guys. I got my tubes in the mail on Monday (speedy delivery I might add). I got them in and my amp sounded great! With such great customer service, that is
rarely seen anymore, you have a customer for life. I had asked about what tubes to use in my Crate Blue Voodoo 60H. Eddie had said my best bet would be to get the re-tube kit. I then noticed that the site only had kits for the 60 Combo. I sent an email back with the information. Within 20 minutes Bob emailed me back and they had a re-tube kit up for my amp. Anyways, keep up the good work!

-Josh Moyer

From: Scott [] Sent: Tuesday, August 19, 2008 10:58 AM To: eurotubes
Subject: Re: Tubes

Hi Bob-
Please feel free to post the following review. I would be more than happy to share my experience ordering from you and using your great tubes! Take care

I purchased a Peavey Valveking 112 as it was a good way to get in to an all tube amp. Its a good amp at stock but I had a feeling it could be a lot better with some modification. After changing out the speaker it improved quite a bit but was still missing something and decided to change out the stock tubes. I did some reading and continued to come across mention of Eurotubes. I decided to give them a try and sent an inquiry email explaining what I was looking for in sound and the type of amp I have. Within a few hours, I had a very detailed reply explaining the different tubes and combinations that would work for what I was looking for. I was still a bit on the fence about changing the tubes but after receiving such good service like that, I decided to go for it. I placed my order on a Monday afternoon. Later that day I received a personal note saying my tubes had shipped. Wednesday they were waiting for me when I got home. I was blown away by the level of professional courtesy and speed of service. The tubes
themselves are fantastic! It gave my amp a very organic warm sound with a bit of grit. It was exactly what I was looking for and what was recommended. I would not hesitate to order from Bob and the gang
again. Stellar service and a fantastic product!

Thanks everyone at Eurotubes!
Scott J.

From: BRADFORD, ANDREW [] Sent: Friday, August 15, 2008 5:57 AM To:
Subject: SC XD and my new tubes

Hi Bob and company ….
Just wanted to say that the JJ ECC83S and 6V6’s worked out great in my SC XD. Together with the Eminence speaker I swapped, this little beast is the Cat’s Meow now. NEVER thought that a $300 amp
could sound so good. Thanks for a great product, and your great support.
Andrew B.

From: Matt Keller [] Sent: Tuesday, August 12, 2008 6:41 PM To:
Subject: Thank You

Hey There,

I bought a set of 5150 Combo High Gain tubes from you a few months back. I needed them shipped to me in a rush and they arrived at my house the next day. Awesome! Everyone knows how noisy 5150's
can get and mine is no exception. Combining your tubes with an ISP Decimator noise gate created a whole new experience for me. These are far-and-away better than any tubes I've ever used (my last set
being a mix of Fender and Mesa Boogie). I was able to cut the aweful noise from my amp in half with the tube/pedal combo. When I spoke with you on the phone, you didn't promise any miracles, but what I got what a whole new amp. The harmonics SCREAM like never before. The individual note definition is incredible. Truly remarkable. I originally wanted the low-gain option, but after discussing my style, you
told me about the high gain and I was sold. These tubes are wicked. I have told all my friends with tube amps about your company. I will make them buy your products! I'm a customer for life. Thanks again for your excellent customer service, but most importantly, thank you for your superior product. Your prices aren't even high. I paid way more for less quality tubes until I found out about Eurotubes.



From: kyle miller [] Sent: Monday, August 11, 2008 2:21 PM To:
Subject: Re: Tubes

Just got the tubes today, in 3 days! The KT77/GZ34 upgrade for the Mesa Dual Rec sounds amazing! I love being able to get that brit. sound with a modern edge on it. Finally got the perfect 80's tone! Thanks Jay!


From: Greg Giambo [] Sent: Wednesday, August 06, 2008 4:10 PM To:
Subject: Re: Tubes

Hi Guys,

I wanted to let you know that I Love the tubes and your recomendations for the packages you provide, plus all the information on your website.

I've got a Peavey Classic 30 and ordered the Blues package for low volume and the sound from the new tubes is Excellent!
Thanks~ Greg


From: Smith, Kirk [] Sent: Wednesday, August 06, 2008 7:22 AM To:
Subject: happy tube amp customer

Bob, just wanted to thank you for your great expertise in helping me choose the right tubes for my
Traynor YCV 20.

The tubes you recommended brought new life to this amp, wow! what a difference in the clean and
overdrive channels.

This amp now has the sound I have been looking for without having to drop thousands on a high dollar
class A amp.

Thanks again for your help
Kirk Smith

-----Original Message-----From: PerPe 2 [] Sent: Monday, July 28, 2008 3:06 PM To:
Subject: WoW (Customer Review)

To whom it may concern. First purchased the Boogie Mark IV high gain preamp package. Awesome. Was actually TOO much gain on tap. Did a dumb thing...The Mark IV was originally a short head. Ordered the combo shell from Boogie. While switching to the combo, I took the tubes out so they were not to be damaged or in the way. I placed them in order on the floor thinking they would not get mixed up. Of course...they got mixed up. Couldn't tell which one was the balanced Phase Inverter. Put them all back in and used a newer boogie 12ax7 as the P.I. It did not sound as perfect as before.

What to do? Kept it that way for a while. Was still better than before JJ. Wanted to cut down the gain. Ordered the standard ecc83s(non-high gain option). Then ordered an ecc803s upon reading your perfect sight. Spoke to someone via phone and was more than satisfied and confident in ordering the tube. Got the tubes TWO DAYS LATER. WOW WOW WOW...OMFG. What a HUGE difference.

Don't know where to point the finger exactly to where the sound is perfect. Just considering a combination of all. I must say I feel a difference when switching the ecc803s to a ecc83s in the V1 position. Little more gain and tightness with the ecc83. Went back to the ecc803s. Just better for my taste. Liked it so much, I ordered another ecc803s matched for my Hughes and Kettner Tubeman. Again, whoever I spoke with on the phone...Bravo to you sir. Again, the H&K never sounded this good...and this is direct into my mac. I hope this can post to the Customer Reviews link. By the way, the Boogie...still ridiculous gain...just better and bigger tone...Viva ecc803s.

From: Larry Stites [] Sent: Monday, July 28, 2008 1:55 PM To: eurotubes
Subject: RE: need a tube recommendation

Hi Bob- Just wanted to drop you a quick note to follow up with my recent order. I could not be happier with the choices you made for me. Switching out the stock tubes for yours is like having a completely
different amp. My little Blackheart is now one sweat sounding amp. I have added a Keely moded blues driver Pedal in front and I have a wide rage of tone possiblilites.

Thank again for all your help,

Best regards, Larry

From: [] Sent: Sunday, July 27, 2008 12:42 PM To:;
Subject: Bugera Retube

Just wanted to drop a line to you about my recent Bugera 6260 retube, i relize that i have JJ's in everyone of my amps and they always make a huge difference. But this one takes it, the smoothness into overdrive and it has sustain for ever! The lead channel is usuable now! It used to sound like a couple gangs of sovteks and rubytubes trying kill each other! The smooth transiton into feedback, the clean
punchy gain........ simply wow.......if Behringer found out what this thing sounded like now... think they would care? It just reminded me of my first retube ever with Eurotubes which was a classic 50 212.
Thanks everyone! Mark J.

From: [] Sent: Monday, July 21, 2008 10:34 AM To: eurotubes
Subject: Re: Order Number: 19576

Thanks Bob - I just received the tubes.

I have to say, your customer service has been awesome. I went back and forth on a couple of emails with Eddie, and he gave me very detailed descriptions of what my tube options are, and in the end, did
not try and guide me toward the more expensive option of high gain or gold preamp tubes. He recommended a standard set based on the feedback that I gave to him. Placing my order on Friday and getting the tubes on Monday was the icing on the cake!

Thanks again

Best Regards,

Chris Soricelli

From: Bruce Oswald [] Sent: Saturday, July 19, 2008 8:55 PM To:
Subject: Kudos!

Bob & gang,
After much research & some selection guidance on your part, I recently purchased a "blues" set of JJs for my combo Peavey Classic 30 with a Celestion Vintage 30 speaker. A few days after putting them in, I called and relayed a problem I experienced that, because of the new tube install, I prematurely attributed to a bad tube. Well, my wasn't a bad tube. Just an idiot user error. Now that I've had a chance to use these a couple weeks, I had to write to say "Flat out amazing!". In the never ending search for THE holy grail of tone, I am that close. Great product, great price, great service. Keep up the awesome work guys.
Bruce Oswald

From: Rafiq Basaria [] Sent: Wednesday, July 16, 2008 3:23 PM To:
Subject: Re: Tubes

Hey just wanted to let you know that the tubes came in today. I biased it and have been playing on them for about half an hour now. They really brought the Carvin MTS3200 to a new level. I realized last night that I had a blown power tube and 2 blown preamp tubes!! Well, after installing and biasing from the 21.3 with the factory tubes to 39 with these bad boys, all I can say is WOW!!! The sound difference is HUGE. There is more gain than before and the sound is much fuller and chunkier. Thanks so much for all of your help. You have earned a life long customer here. I will be coming to you for all of my future tube needs.

-----Original Message-----From: [] Sent: Wednesday, July 16, 2008 1:58 AM To:
Subject: Many Thanks!

Hey guys.

I ordered the "Personal Fave" set for my Dual Rectifier last week, and they turned up today. My amp has never sounded so good, and my 7 String PRS has never sounded so clear. Thank you so much. All the best.


From: Elliot and Sharon Merkle [] Sent: Sunday, July 13, 2008 2:07 PM To:
Subject: Tubes Received Sat. July 12 Thank you!

Hi Jay,
Thank you so much for re-shipping my order of pre-amp tubes for my Mesa Nomad 45 last Thursday. The postman took them to my front door Sat. afternoon, just in time for a gig that night and I could not
be happier with the difference in channels 2 and 3 with the 802’s in V2 and V3. Channel 3 was completely unusable with the stock Mesa 12AX7’s, noisy and dead in Vintage position, and sounding like a cheap solid state amp in the modern position with trebly, screechy breakup. The 802’s have tamed it so it’s now quiet and completely under control when run in the “modern” position. And Channel two cleaned up nicely, less of that overly fat bottom and finally some highs. So now I have an amp with three usable channels and I no longer need to play exclusively through channel one using a stomp box for distortion. You guys are the greatest!

Elliot Merkle

From: m barrett [] Sent: Tuesday, July 08, 2008 2:51 AM To:

I just want to thank you both for the PROFESSIONAL service and advice! The low gain tube set for the Fender Prosonic is just awsome. It no longer sounds "fizzy" or "clickey". I am so impressed with the
tone. It breathes now. Biasing it was very easy also, thanks to your vids. It is so great to do buisness with some "hands on" professional's . Thank you for the help.


-----Original Message-----From: [] Sent: Monday, July 07, 2008 4:50 PM To: eurotubes
Subject: Re: RE: My last order

Hey Bob,

Your tubes kick Ass! My DSL50 has more BALLS than ever now, and they drive my alnicos to perfection. You can't top the sheer convenience of buying stuff online from a fellow Master Tone Quest musician who knows WTF it's all about! Thanks again Bob - and long live EUROTUBES!!

Jeff Smythe

-----Original Message-----
From: [] On Behalf Of Glenn Warner 3rd
Sent: Friday, June 27, 2008 11:13 PM
Subject: [Triaxis] GoodBye Flubby Lows! Thank You Bob + EuroTubes!

Hello All, After receiving my tubes from Bob at Eurotubes (They came lightning fast in 48 hours from phone to in hand from Oregon to Pennsylvania) I installed them and let me tell you....PROBLEM

These tubes gave me tone that was better than sex! I could not believe the difference, it was stunning, amazing, unbelievable, etc... If any of you are reading this and wonder about what tubes you have or how
your tone is, CHECK THEM! Bob was right, he told me that it was more my 2:90 on flubby lows than my triaxix tubes. He was 100 percent right. My lows have HUGE balls now with AWESOME clarity and crisp definition. Jeff, I know you asked me to let you know how the power tubes were and dude, you gotta try them. Best move I ever made.

I can only imagine now what my tone will go to once I start changing my pickups. Please forgive me if I go on and on but I can't help it, those tubes not only changed my tone...It changed my inspiration :) I
changed every tube in my rig. I purchased 5 preamp 12ax7's, high gain option with a balanced V5 tube for my triaxis (My clean tone is important to me too) and a complete tube kit for my 2:90 (3 balanced
12ax7's and 8 6L6's).

I retubed my triaxis first, gave it a listen and had a noticeably good increase in my tone. When I did my 2:90 and fired it up, it was NIGHT and DAY. I never would have thought that the power tubes would make such an impact on tone quality but it's definitely true.

On another note, thanks to all of you who recommended I change my tubes. And especially a big thanks to all of you who told me to call Bob at eurotubes. And most importantly THANK YOU BOB for your expertise and your ABOVE AND BEYOND EXCELLENT PERSONALIZED SERVICE! Now I am ready to do my gig at the Jersey Shore on the 4th of July weekend with huge tone! Freakin Stoked with Best Regards,Glenn

From: Jason Freeland [] Sent: Monday, June 30, 2008 9:38 AM To: eurotubes
Subject: Re: Question about retube kit

Hi Bob, wanted to drop a note and tell you that I received the tubes last Friday and the Road King LOVES these tubes!!! The ECC803S Gold Pin for slot V1 sounds GREAT! Oddly, it seems to break up a
little earlier so I had to back the gain down to keep things glassy clean. But it really does add a sparkle and body to the cleans. And of course the other two JJs in V2 & V3 have erased the fuzz buzz from the
crunch and drive tones, bigtime. Super smooth and punchy gain after swapping the stock tubes out, sounds good under eleven o'clock, but above that - ROCK CITY. The KT77s are PHENOMENAL in place of the stock EL34s. Its like a whole different amp. Incredible. Spent all my time having fun with the RK, and never got around to swapping out the EL84s in the Maverick. Looking forward to that tonight....!

Thanks again,

From: Mark Zanoni [] Sent: Monday, June 30, 2008 1:13 PM To:
Subject: Thanks

Hi guys!

My tubes arrived exactly on the day predicted and I have just one word to! Tubes question...and these JJs smoke. Going from a 6L6 to an E34L also helped a great deal to help me find
that little "think" that had been missing in the sound I go for. Clean and dirty channel on my Mesa Lonestar sound unbelievable. Nice tight lows and very prominant mids and glassy yet not overpowering highs. It also seemed like the volume was a little greater so maybe increased efficiency and balance helped with that too. Great prices and customer service as well. You have a loyal customer that will spread the word.

Mark Zanoni

From: David L [mailto:] Sent: Tuesday, June 24, 2008 1:29 PM To:
Subject: RE: Set for Engl Screamer 50 Combo?

Hi Jay, Bob, Eurotubes team,

Just a quick email to say thanks very much for the tubes, they arrived on Monday... thanks for getting them to the UK so quickly!

Good job I read your guides, because if I'd have bought these elsewhere, I would have shoved them straight in without using electrical cleaner and making a proper connection. I've gotta say, even with some fairly sensitive ears, I was pretty sceptical as to whether I'd be able to tell the difference - I'm not generally one of the Eric Johnson guys who worries about what brand of batteries are in my pedals!

However, even though I've not had the Engl very long, and it is my first real tube amp, I was really impressed as soon as I turned it on. It's a difficult thing to describe, other than to say that the gain has been "tightened-up", "livened-up" and is less "fuzzy". I'm really looking forward to getting used to the sound and being confident about having a great tone. You really took the headache out of this for me; your ears and selection experience mean that I can just plug the things in and smile!

As someone who also runs a busy mail order business ( ), I know it's very challenging difficult to provide the level of customer service and one-to-one advice you provide at
Eurotubes, so congratulations. It's a very refreshing experience as an Englishman (we're not used to it!)

Someone I know also has a Screamer so hopefully he'll be moving over to some real tubes now, too...

Best Regards,


From: Austin T [] Sent: Monday, June 23, 2008 9:31 PM To: Eurotubes
Subject: RE: 6v6 tubes for a Fender Hot Rod Deluxe,


received the jj 6v6 tubes today and installed them, and set the bias to 31.4 volts, had absolutely no problems after watching your video, it was funny the trim pot was set dead in the middle, looks like they
just did a pass fail for the bias, anyway the factory setting gave me 16mV, and I was easily able to get 45mV, however I figured a bit colder would give me longer life on the tubes so set it there.

Love the tone of the 6V6 tubes, they just sing so sweetly, I love the HRDx tone now. I have had 6v6 tubes amps really love how they sound, I had a Marshall Studio 15 which I got in 1986, and its really
similar to my HRDx Texas Red with a Vintage 30 speaker and now the 6v6 tubes, and my Mesa Mark IV which has 6v6 tubes as well. The 6v6 seem to sound great where ever they go, thanks for improving my HRDx amp really loving it now.


From: steve blake [] Sent: Friday, June 20, 2008 4:59 PM To:
Subject: Prosonic Retube Kit

Hey guys,

Just wanted to let you know how pleased I am with your Low Gain Kit Best hundred and twelve bucks I've ever spent on music related gear. I purchased my 1996 Prosonic used about 3 years ago and have never been really happy with it. Well the original tubes finally crapped out on it, so I figured I'd buy from someone who knows this amp.

So I swap out the oldies for the goodies and and low and behold, the quietest amp in the stable. I used to use pedals in the clean channel to get a descent crunch for rhythm and more pedals for a singing lead tone. Not anymore boys.

Set the clean channel just about ready to break up and dig in a little harder with the pick and I get a great bluesy rhythm sound. The drive channel rocks so well that the only pedal I use now is my Eternity for leads.

I couldn't be happier.

Thanks again for another great product.

Steve Blake

From: Brian Lee [] Sent: Monday, June 16, 2008 7:14 PM To: 'Eurotubes'
Subject: A Big THANK YOU

Hi Eddie,

Thanks for your prompt reply, I had received the tubes today, replace with JJ tubes in my Mesa/Boogie Subway Blues. At first I was a bit disappointed because of the popping and cracking sounds came out
from the amp although I switched off both guitar volume and amp volume. Then I saw the note on FAQ stated in the invoice, checked the site, and followed the recommended steps in “Cleaning” the tube
sockets by plugging the tubes in and out a few times

Well, it seems like ridiculous but wait until I played it. A BIG WOW came out of my mouth literally, I couldn’t believe my ears, the low was so tight and balance, mid was punchy, and the high was not ear
piercing but defined and clear. All this translated into sweet singing music to my ears. When I cranked up the amp volume around 12 o’clock, the natural tube break-up sound is so creamy and it still lingering
in my head. Next thing I need to do is to rearrange my pedals and few adjustments to fit the new tone. To tell you the truth, I finally got the Santana tone from this humble little amp without even using TS-9!.

I am so happy to deal with you guys from Eurotubes, I’ll put the Eurotubes’ sticker on my amp in case someone ask me how I get my tone. Damn, can’t wait to head home to my “New” amp.

Best regards,
Brian Lee

From: Eric Carillo [] Sent: Sunday, June 15, 2008 1:50 PM To: Bob
Subject: Re: Customer Order: 19055

Hey Bob,

I got my tubes in yesterday and just finished installing them and testing them out. The change is phenomenal. You are a true genius. With a new musical venture in the making, I decided to upgrade my sound. The first step was to retube my Carvin V3 with KT77 High Gain kit you offer. I sat down and played the old stock tubes for about an hour to really pay attention to their quality (or lack of). With the KT77 kit in, this is like a completely new amp. I didn't think the difference would be that noticeable. But I'll tell you the gain is unreal. I play 7 string guitars and this set up, by far holds it together. The low end is fat and delicious. I now know where to come for all my tube needs.

Eric Carillo
Bakersfield, CA
My Dirty X

From: Stephen Kelly, Jr. [] Sent: Saturday, June 14, 2008 10:48 AM To:
Subject: Thanks!


Just wanted to take the time to thank you and give a big thumbs up on a great product. Shipping was more than prompt, and the conformation email from Jay was appreciated. The included business card
and sticker was a plus too! Reminded me I was dealing with a real person and not some mail order giant whose only goal is quantity over quality...

I've got a couple combos because of the ease of transportation. One being a Fender HRD 4x10 which was made in 1998 and a newer TSL 602 Marshall 2x12 - which will get some JJ KT 77's soon..Been
playing tube amps for over 20 years and I somewhat know when the tubes are going sour, but I always paid someone to do it for me. Well, those days are over - with the Webber BR 2+2 unit purchased from you and the complete re-tube kit - I am confident in my own ability to do it myself now. I must also add that I might not of tried that avenue if I had not watched the videos of Bob. That really was the selling point for me, and once again I thank you.

My HRD now sounds like I always wanted it to. I am now going to retire the TS-9 and other various pedals of the like I previously used to color the front end of the amp looking for "the tone" that everyone
hears in their heads but few achieve. When I turn my amp on now, I'm too busy grinning ear to ear because I have at last found it. Only wish I had tried your tubes first. Would of saved me quite a bit of cash and heart ache.

Look for my order of the KT 77 complete re-tube kit for the TSL 602 soon..


Stephen Kelly, Jr.
Ripley, WV

From: John Graziano [] Sent: Wednesday, June 04, 2008 1:35 PM To: eurotubes
Subject: Successful Re-tube

Bob, I did my tube replacement last night successfully. And the amp (DSL401) sounds GREAT ! The old tubes gave off a lot of hum - these are very quiet ! And the old were muddy with strange harmonics - the new ones are clear crisp on normal and nice warm but crisp marshal distortion on OD1. I am very happy with there tubes and glad I followed the advice of the many forums that recommended you and your tubes.


-----Original Message-----
From: [] Sent: Thursday, May 29, 2008 10:02 AM To:
Subject: My new tubes for my Mesa Dual Rectifier


I recently purchase the high gain preamps, 6L6's and GZ34's for my Mesa Dual Rectifier.

I have owned the amp for about 2 years now and never replaced the tubes. I was floored by how much the tubes rocked. Not only was I impressed but my band mates commented (and continue to comment) on how much better my amp sounds.

Thank you so much. I love my new tubes. Keep up the good work.

Richard Jarmuzewski

From: steve york [] Sent: Thursday, May 29, 2008 9:57 AM To: Eurotubes
Subject: Re: Peavey classic 30 revalve

Hi Eddie

I thought I would give you some feedback!

I fitted the replacement valves in my Classic 30 and have had the chance to try it out for a few weeks now. I have to confirm that they have transformed the sound.

The standard channel is warm and begins to break up nicely at high volume, and the lead channel is so much better. It is no longer a fizzy, over compressed sound but a real usable bluesy tone. There is a Fenderish tone to it now which is exactly what I wanted. Great!

Thank you for the superb service and I would recommend you to anyone looking to revalve or improve the tone of their amps.

One very satisfied customer!

Best regards


Hi Bob, I don't know if you remember me. I'm the guy you helped out that had the problems biasing a Bugera amplifier. Anyway...thanks again for helping me through the problem. I made this Youtube video
not too long ago with the Eurotubes tube upgrade and biased with your help and thought you might be interested in hearing the finished product. Thanks again. Jim Storck....Newcomerstown, OH

From: Aaron W. Rogers [] Sent: Friday, May 23, 2008 2:56 PM To: eurotubes
Subject: Re: MTS3200 completed...thanks!

Just thought I would give a testimonial and say you weren't kidding! I record mostly with the amp instead of gig, so tone is more important to me than tube life. My other guitarist and I (he's an electronics
technician in the Air Force) set the bias pretty hot, to 187 mA, and the thing came alive. I recorded my demo over 5 years with the stock tubes so the tone would be consistent throughout, and now I wish I had retubed it to start with. My biggest complaint with the guitar tone was that the amp sounded nasally and thin, similar to the old Judas Priest and Iron Maiden records. Now it's wide and full, especially on the clean channel, which I always liked even stock. My other guitarist has an 82 Stage Lead II silverface, and, for all of the complaints people have about those amps, it did get a loud fairly warm clean sound.
This retube got the MTS clean much closer to that. I'll probably even be able to take my BBE out of the effects loop, which I used to use to get more highs and lows.

Since I'm a metal guy I have a fair amount of Randall solid states for death metal and scooped low tunings because I like a really consistent distortion when doing that, but it sucks for Van Halen kind of stuff. I've also got some rack gear that gets a good cold clean. So the thing I was really lacking was a warm vintage clean and Marshall-esque tone for regular tuning stuff, and this definitely delivered, even with the EMGs. It's much closer to what I would consider an 800 to sound like, and at much less the price. When I tried both the Legacy and the MTS stock at the LA Carvin store in 2000, I didn't like the Legacy because it sounded too warm for what I wanted to do, but I liked parts of its sound. This retubed MTS gets a warmer sound with none of the disadvantages.

Thanks again Bob, you've made me a believer and a loyal customer.


From: Rob Weatherstone [] Sent: Wednesday, May 21, 2008 7:43 PM To: eurotubes
Subject: Re: Replacement tubes for Eden amps...

Bob... You blow me away! First, you answer emails like every one of them counts, something I'm not used to at all. Second, you went to look for me on file, and gave me all of the details I need! You are the
best, and I'll keep telling every crazy guitar and bass player that!

I'll get my order together in the next few days. Thanks again for being so accessible. You are the kind of net retailer who will get my order every time...


From: JEREMY JOHNSON [] Sent: Monday, May 19, 2008 10:18 AM To: eurotubes
Subject: Retubing A PEAVEY JSX

You are freakin awesome! Thank you for your help. Threw in the high gain KT77 kit into my Peavey JSX. With a quick Bias this amp now screams. The sound was truly inspiring. Every one at band practice
was like holysh!% ! Can't say enough about how bad ass the sound is now compared to what it was before. From talking to you it seems your wealth of information and recommendations are putting your
competition to shame. ALL HAIL EUROTUBES!
JJ Germ

From: [] Sent: Sunday, May 18, 2008 8:35 AM To:
Subject: Thankyou myfriend..

hey................just bias'ed my DSL 50 for the first time thanks to your Vid, it was way out, bout 85 'n' 41 wow, i can't believe how easy it was, now 44 each...all this time i've been listening to my local tech talk about his hard work!!!! it took me less than 5 min's and i've never used a meter before...think i'll keep next weeks appt and just go along to collect some of the money back!!! (Ł30.00) for 5 mins work twise a year for 8 yrs....

ther aren't enough people like you in the guitar/amp world thats for sure!!!

again, thankyou so very much......paul...nottingham...Uk.

-----Original Message-----From: Steve Clark [] Sent: Wednesday, May 14, 2008 4:26 PM To: Eurotubes
Subject: RE: Customer Order: 18480

Hey Eddie,

Just wanted to pass along a thanks for taking the time to answer my questions. I just finished a complete re-tube of my amp (DSL50) and got BIAS set right around 41mv on each side...also just jammed for about an hour...No explosions ha ha, and the amp sounded GREAT!

So hopefully this means everything was done right and you folks provided the know-how and high quality tubes.

Anyway, I will certainly pass the word around about your great and helpful service!!!

Thanks Again...Steve

From: tim [] Sent: Wednesday, May 14, 2008 5:28 PM To:
Subject: my new tubes

Hi..Just wanted to drop you a line and let you know that i have a new tube supplier...YOU! I only bought 3 sets of power tubes 6v6,6l6,e34l...Awesome service. nice packaging, and FAST shipping. free sticker to boot. LOL..And to top it all off, they sound awesome! I will be ordering new tubes for the rest of my amps soon...Thank you!
Tim Schroeder

From: JAMES TERRELL [] Sent: Wednesday, May 14, 2008 10:13 AM To:
Subject: THANKS!


Thank you for answering my questions and narrowing down my choices of re-tube kits for my style.

The Blues #1 arrived two days after ordering them and having compared them back to back with the stock Groove Tubes in my HRDlx I must say that I'm blown away by how much better it sounds in every way. They were exactly what I was after.

Thanks again!,

From: Matthew Quinlan [] Sent: Monday, May 12, 2008 5:32 PM To: eurotubes
Subject: RE: classic 30/112

Hey Bob,
I got the tubes today and replaced them right away. The difference in in sound was immediately noticable. Intially, I thought since the tubes I replaced were all JJ's there wouldn't be much change. How wrong I was! I think you're on to something with this tube matching! LOL
Thanks a million,

From: Jose Borrás [] Sent: Monday, May 12, 2008 2:48 AM To: eurotubes
Subject: feedback

Hi there, a great salute from Spain where you'll find good wine, lots of party and hot chiks!

I've ordered a full retube kit for a Marshall JCM 2000 TSL High Gain option a time ago, after retubing and biasing and a couple of months playing with my amp I'm very satisfied with it's new sound, just wanted to write feedback and thank you for the great support before ordering the tubes, specially for answering my questions in a fast and good way.

I'm linking my "tube" friends to your site as well, specially recommending to everyone into tubes, it's been nice to make bussiness with you, and I'm sure it won't be the last time.

Best wishes, thx

From: christianjoel santiago [] Sent: Monday, May 05, 2008 2:43 PM To:
Subject: My amp sings great

to bob and the eurotubes team:

I received the tubes the other day, good shipping!!!! Moronic postman left the box in the rain.... yet the tubes were dry!

MY Super Reverb sounds more vintage than ever! Great customer support, too.

You can count on my future business and recomendations,

Chris Santiago
Puerto Rico

From: lopezjcs [] Sent: Monday, May 05, 2008 8:11 AM To: eurotubes
Subject: Re: JJ6v6 in Blues Deluxe reissue ??


Thanks for all the help. Rebiased the BDRI with the JJ 6v6S over the weekend [set it at 40mV].

I was completely Underwhelmed with the amp after I bought it. The Sovetk [GT] 6l6 were sterile but punchy especially at lower volumes which is where I usually had to use it [Home and small venues] and
the "drive" channel was uninspiring.

Now well, WOW!!!! what a transformation.

Clean at about 7 with the guitar [strat w/fralin's] dialed back a bit is sweet and round, crank the guitar in the clean channel and just the right amount of edge. Switch to the drive channel and the OD is much
more natural and pleasing. With a Les Paul.... well I think there are laws against that sound in every state but maybe Nevada.

The amp is running 430vdc at the plates so I'm hoping to get good life out of the tubes but even if I have to replace them more often well worth it.

Thanks again

Mike Jennings
Lopez Island, WA

From: Wil B [] Sent: Sunday, May 04, 2008 9:44 PM To: eurotubes
Subject: Re: 12bah bah bah

Hey Bob

I want to say thank you the 6G6 Bassman turned out unreal. Probably the best Sounding Bassman I have ever heard and I have heard a lot of them. Your 6L6 (pardon my French) is funking magical That
harmonic depth and the most even dynamics across a wide spectrum of gain structures and ranges. Wow I have been so happy getting really great sounding tubes from you!!!!

Wil B

From: Ryan G [] Sent: Wednesday, April 30, 2008 5:42 AM To: Eurotubes
Subject: Re: bass tube


I just wanted to let you know that I pulled out the groovetube and dropped the matched ECC83S into my SWR SM-400s preamp. All I can say is WOW! It brought so much life and punch to my sound. I will be recommending you guys to my fellow musicians.



From: Jason Paoletti [] Sent: Thursday, April 24, 2008 1:02 AM To:
Subject: They came!

I ended up ordering the tube kit for my Palomino V16 last Thursday. They arrived here in Michigan in great shape Monday. Very fast. I believe I talked to Jay on the phone? Anyway I just want to say thanks
for answering my questions via email and also Jay was very helpful over the phone. I had many questions as this was my first tube change and he answered them all. You were right about the tube rattle. In fact I bought a 1x12 cabinet on Sunday and the rattle was gone. I almost regretted ordering the tubes until I installed them Monday. The highs were very harsh and at times made me cringe while playing with the
stock Groove Tubes which I thought were supposed to be great tubes. However the JJ's tubes make the amp sound great. I am finally happy with my set up. Thanks again and I will definately order from you
Nice tubes!

Jason Paoletti

-----Original Message-----From: [] Sent: Wednesday, April 23, 2008 8:40 PM To:
Subject: thank you

hello this is Jeremy Dove

I have to write and tell you that your tubes are by far the greatest asset to my rig (mesa dual rec) I have ordered from you for the last 4 years and have sent so many people your way I cant stop talking about
how great the tubes are ...Like I said I have ordered for awhile and never really took the time to thank you for your knowledge,and your hard work and after I put the last set of tubes in i realized that with out your company I would sound as good as I do and have all those people come up to me and say how do you get that tone!

bob's euro tubes it even sounds cool haha

anyway's thank you for everything and I hope to do bussiness with you for a very long time ...also thank you fort he sticker now I can give the people the website right there in the club I put the sticker on my head case and will wear it proudly haha

your biggest fan lol
bigj aka(jeremy dove)

From: derrick m [] Sent: Thursday, April 17, 2008 9:38 PM To:
Subject: Re: Tubes

Thanks gentlemen for the caring and speedy service. I took the plunge based on your advice, biased my twin myself, and had it sounding like a new amp in about 40 minutes. Bob didn't even make fun of me
when I tried to talk to him when I was half crocked. It took 2.5 days to get my tubes. Awesome. The sticker was a nice addition. It is now on my car. The amp sounds great now, the vibrato problem is fixed
and I can't wait to see what it sounds like when I replace the 28 year old caps. I also sprayed the radioshack cleaner on the pots and it worked on all but two. The pots still work, but they are noisy. But I
guess thats to be expected with an amp that is my elder. Debo comprar ustedes cerveza mucho!
Thanks a million, Derrick Mosier, Kansas City, MO

From: Joe Montuori [] Sent: Thursday, April 17, 2008 3:31 AM To: eurotubes
Subject: Thank you Bob!!

Yesterday I received the KT-77's for my JSX and I installed them and this amp went from being good to wicked!!! I can't believe the sound and the chunky mids are right where I need them and even the clean channel sounds amazing! I put my Kirk Hammet KH-2 (Emg-81 loaded) and the Parker Fly Deluxe and it sounds incredible! I biased the amp at 38 mA. Again thank you for your opinion and I will be sure to order from you again when I need new tubes!

Joseph. Montuori

From: jmalcolm [] Sent: Sunday, April 06, 2008 4:15 PM To: 'Eurotubes'
Subject: RE: Traynor YBA-1 tubes

I am in awe at the difference made by installing the JJ Tesla tubes in my Traynor YBA-1: the JJ E34L's and JJ ECC83S's First of all, a truly enormous surge in gain. Secondly, a tighter and more rounded feel. Incredible definition and responsiveness. It is truly as though I had gone out and purchased a whole new amplifier! In fact, when I sit down and play, I close my eyes and that is what I tell myself, to the point when I actually believe it! Thanks for your great advice and support, and for allowing me to 're-birth' my amp! I never would have believed it...
John M

From: Tim Berry [ Sent: Saturday, April 05, 2008 7:22 PM To:
Subject: You saved my amp!

I recently bought a Peavey Windsor studio based on the features and reviews an Harmony Central. I was somewhat disappointed in that I felt the amp sounded flat. The highs were muted and the mids were over pronounced. I swapped the speaker for a Celestion Greenback. It was an improvement but I still felt that the tone was being suppressed. My amp sounded like a blanket had been thrown over it. I was
contemplating selling it. As a last ditch effort I called eurotubes and discussed my problem.

You guys were very patient, as tone is hard to describe. I settled on a pair of high gain 12AX7's with a JJ's E34L. Holy crap. The tone I get now is phenomenal. Early VH brown sound without even trying. The highs are usable and the overall tone is one thousand percent better. My tone controls now actually work as I expect them to. The sounds coming out of the amp are complex and wonderfully full. No longer does the amp sound as though it is being muffled. All of the potential I heard from the amp has been unleashed. I just want to thank you for saving my amp and making me one happy customer. Wow! what a difference. This amp is now an amazing tone generating machine. Thank you, thank you, thank you. I will be soon be buying tubes for my other amps from you! Quality tubes make such a difference.

Tim Berry

-----Original Message-----From: Richard H [] Sent: Wednesday, April 02, 2008 7:49 PM To:
Subject: Re: Tubes

Hi Bob,

The tubes came today (Blues Jr gold pin option) and I just finished popping them in.

I don't think I've ever heard $80 make such an incredible positive difference in the sound of any amp I've owned.

Thank you very, very much. You've turned a mediocre amp into a good one. At the price point of the Blues Jr, that's a remarkable transition.

Very best regards,


From: DeWitz, Kevin [] Sent: Tuesday, April 01, 2008 10:38 AM To:
Subject: Peavey XXX Tube questions


First, let me tell you how happy I am with my JJ ECC83S tubes. I replaced a full set of original British Mullards in my Traynor Reverb Master and the JJs sound better! (This after I had replaced the Mullards
with some EH 12AX7s, which definitely did NOT sound better) I cannot believe the difference these tubes made in my amp. They sound every bit as good as my 60s RCA 12AX7. At this point, I intend on buying only JJ tubes (from Eurotubes, of course!).

Kevin DeWitz

From: jeff [] Sent: Tuesday, April 01, 2008 12:15 AM To:
Subject: WOW!

I have a Fender HRD that I bought used - it came with a mix of Marshall pretubes and Ruby powertubes. This amps clean channel was alright, but unremarkable and the dirty channel was too muddy even for a grunge guitarist. I bought a JJ blues retube set from you - got it like two days later - this in itself is remarkable. Just for shits and giggles (I was a bit doubtful) I decided to put just the pretubes in the amp
just to see if there would be any kind of noteable difference. Wow - the difference was striking with just the first strum. Then I switch to the dirty channel - beautiful - now it's very pleasant and usable. Then I
changed the powertubes and biased them to 80mV and the little amp that I totally underestimated has me smiling like I ate the canary. Your 'How To Bias' video is awesome - very easy to follow.

Thanks a lot for all your help on the phone - you answered all of my questions and you didn't make me feel like a complete dumb-ass in the process. This was the best $68 that I've spent in a long time - a steal in my opinion. I will definitely buy from you again and I will definitely direct other players in your direction.
Thanks a ton, Spaceman

From: Eric Royals [] Sent: Saturday, March 29, 2008 11:07 PM To:
Subject: Very Pleased Customer

Holy crap! I've just finished putting in the new tubes that you guys sent me and re-biasing my amp, and I can't say I've ever been more pleased with the sounds coming out of my amp--or any amp I've played, for that matter! I own a brand new Fender Hot Rod Deluxe (bought it a couple weeks ago from my local Guitar Center). I have to say I've loved the tone of those amps for a long time. I used to own a Crate
Palomino V32 combo, but it wasn't quite what I was looking for in an amp. (I've not been the biggest fan of Crate, but the amp sounded alright.) So I sold it, finally got a hold of the Deluxe, and I've loved playing it--or at least I thought I did.

I ordered the Eurotubes re-tube kit that consists of: one standard JJ ECC83S preamp tube for the V1 position, one hand-picked high-gain JJ ECC83S preamp tube for the V2 position, and one balanced JJ ECC83S preamp tube for the V3 position (phase inverter). I also took out the stock Fender/Groove Tubes 6L6 power tubes and put in a matched pair of JJ 6V6S power tubes. I simply can't believe how much better the amp sounds! The clean channel is still clean and very lovely. But now it has a warmer quality to it. And thanks to the 6V6S power tubes in there, the clean channel has this very nice sweet spot where it will break up beautifully with a nice mid-frequency crunch that wasn't there before. Now for the drive channel... Yeah--the drive channel sounds incredible. It's got the greatest, thickest, warmest overdrive that I've heard in any amp--better than any pedal I've heard too. And when I kick in the more-drive, it just thickens up even more and gets hotter! It's not that bright and shrill sound that was heard before.

It's just amazing. I mean, dang! If Fender made the HRDs stock like this (with these JJ tubes in there instead of the crappy Fender/Groove Tubes valves), they'd be selling them like crazy! From what I understand, the 6V6S power tubes cause the wattage to lower a tad (to around 30 watts, as opposed to 40), but who cares? That just means that I get that nice, fat sound a little earlier on the volume knob! Wow--I don't want to keep rambling on, but I am simply awe-struck by the sounds that are coming from my amp. My hat goes off to you guys at Eurotubes! Thank you so much for answering all of my emails, answering all of my questions over the phone, and getting me set up with the exact set of tubes I needed to get the sound I was looking for. I really appreciate it and I will continue buying my tubes from you guys--I'm a customer for life.

Once again--thanks! And yes, post my email on your user reviews page if you'd like. I want all the other HRD users out there to know who to go to for the tone they're looking for.

A very satisfied customer,
Eric Royals
Dallas, TX

From: [] Sent: Friday, March 28, 2008 5:13 PM To:
Subject: what the f@#$

I ordered a full re-tube kit for my dual rec on wed evening. Friday when I pulled into the drive I saw the spec. delivery hanging on the mail box.The rest is just completely unbelievable. Your staff asked all the
right questions and truly spent some time with me,I felt he knew just what I was after.

The problem, my rec (brand new 3 ch.) sounds thin and buzzy, low end is to loose and not enough, not "punchy" enough, gain is buzzy and to over the top on rhythm and not enough for lead. I love the features,quality,low noise floor,and basic tone, but it just sounded flat. I play high quality guitars(les paul w/emg's, usa PRS SC250,wolfgang)and tried many cabinets to no avail.

CALL THESE GUYS. You wont believe the difference. Someone once told me quality amps are like fine suits. Buy the best you can afford then get it fitted. I wasn't sure about that till now. The difference is unreal. This amp rips. I play mostly metal through this amp but the clean tones beat my fenders HRD and twin. So full and punchy. I went w KT88 and KT66 output tubes, GZ34 rec tubes and JJ gold pin ECC83s fof V1,V2,V3 and a JJ ECC83s for 4, and a matched phase splitter.

They laid it all out for me and gave me all kinds of options. This isn't like mixing and matching, which can get very frustrating. These guys are the real deal. End result, low end is strong but not detached, mids shake the floors and my pants, high are smooth and liquid and very balanced. I truly cant believe the tone. I've ben playing for 18 years since 15. I've had so many amps and tried different tubes in most of them. I dont play out much any more, I play mostly at home. This mod improved the low volume tone so much I really cant believe mesa or any high end co. doesn't offer optional kits.But turn it up. O MY. All modes of all channels are just better. It doesn't take a tone snob to notice the difference. It is immediate, unbelievable, and I think it made it move.

You guys saved me a thousand dollars on a trade. Thank you.

-----Original Message-----From: Free69 [] Sent: Sunday, March 23, 2008 11:47 AM To:
Subject: Re: Tubes

Howdy Jay and Eurotubes!

Thanks a lot for the prompt service! I already swapped the tubes in the JSX amp. The amp sounds now much more creamy and the bass response is really better instead of EL34 from Electro Harmonix! Now it has plenty of gain.

My customer was very surprised how tubes can make such a different. He is very satisfied with that new sound.

The KT77 hit the bull's-eye!

Yours sincerely
Daniel Kempf

From: terry j [] Sent: Sunday, March 23, 2008 12:22 PM To: eurotubes
Subject: thank you

Hello Bob
First & foremost let me express my appreciation for the customer service I received. The fact that you answered both my E-mails & made recommendations for the re-tube is the kind of service you rarely see these days. Now, as for the tubes, I went with option #2 on my PV & it sounds great. CH. 1 has punch & low end, but now it also breaks up nicely at high volumes. Ch.2 WOW! The tone is fatter than my sister's cat, yet it also retains that crisp edge without being muddy. I am now a believer, & I will gladly direct all guitar comrades & family members to your site.

thank you much Terry

From: [] Sent: Thursday, March 20, 2008 11:28 AM To: eurotubes
Subject: RE: Dual Rectifier tubes

Hi Bob,

I just wanted to give you a little feedback, I purchased your "personal fave" mesa dual rectifier tube package on Friday. The tubes arrived Monday, and I finally got a chance to check them out last night. I am really impressed. There seems to be more presence and clarity to the tone, and this might sound crazy, but the amp feels easier to play. Tapping on the clean channel is startling. I don't have to fight the amp, which is how I always felt before. The distortion on channel two, vintage mode, gain around 12 o'clock, is much more clear. It is like a blanket has been removed from the amp. Thank you very much for delivering such a fine product, and for customer service beyond expectations. BTW, you need to get some domestic guitar magazines to review some of your tube packages, it would be a service to their
readers and should send more business your way.

Wishing you continued success,

Clay Lamb

From: Dr. Greg Gorman [] Sent: Wednesday, March 19, 2008 7:58 PM To: eurotubes
Subject: RE: tubes for a 5150


My wife order new tubes from you for my 5150....JJ's with the high gain option. She gave them to me today and I followed the socket cleaing procedure and installed them and now my 5150 rocks again.
New tubes where just what it needed. Its really amazing how much better is sound with the new tubes. Thanks for all of your very informative help and especially your willingness to help. I'm a Eurotubes
customer for life....


From: Gillespie, Shawn (LNG-DAY) [] Sent: Monday, March 10, 2008 7:22 AM To:
Subject: Mesa F-30 now has balls!!

I just wanted to let you know that the high gain re-tube kit I purchased from you for my Mesa Boogie F-30 was just what I was looking for. I used to run the gain on the over drive channel at about 9-10 but now it has so much more that I run it at about 4-5 I can also get some really nice Zakk Wyld squeals that I could not get before. This was my first re-tube job and you made it very easy and the sound I now get from my amp is amazing!

Thanks Euro Tubes!!


-----Original Message-----From: Todd Piper [] Sent: Friday, March 07, 2008 11:27 AM To:
Subject: Got my tubes yesterday...

I got my tubes and installed them into my Mesa/Boogie F-30 yesterday. That was fast! Anyway, they are fantastic. Beyond fantastic. I had no idea such a simple swap from the stock tubes to JJ tubes could make such a difference. It is way beyond what I imagined. I bought the F-30 based on value, tone, and nostalgia. You see, I fell in love with a Mesa/Boogie Studio 22 back in the 80's. I would play through
that amp after my lessons back in high school until the owner of the music store kicked me out. Back then, I could never afford one on my high school budget. When I found the F series a few years ago when
amp shopping, it brought back those creamy tone filled memories. Mesa/Boogie claims that the F series are direct descendants of the Studio and Mark IV amps. I believe that in theory, but not in practice. It
seems to me that Mesa/Boogie just has to put a bit of that "Recto" tone in every new amp they make. I can understand, they had a new defined tone that further separated them from the Marshall and Soldano
crowd. Anyway, the stock F-30 is great, not a Studio 22, but still great. However, it has this fizz that comes in right at the threshold of great tone. I identify that fizz as the Recto sound. You want a bit more gain, but more gain adds more fizz. Kill the fizz, now there is not enough gain. The JJ tubes fixed that problem for me and the amp is now much closer to my memories of that Studio 22 back in 1987. In short these are the differences I noticed with the High Gain Retube kit for the Mesa/Boogie F-30:

1. Much less amp hiss
2. Darker. Rounder, Warmer tone (took 3 minutes to readjust the EQ
and all was good)
3. Harmonics are fantastic
4. More gain with better clarity and note separation
5. FX sound better - a side effect of clarity I'm sure
6. The clean channel is now stunning. I never used it before, now
it is fantastic

As you can see, I'm thrilled I decided to retube my amp with JJ tubes and you can look forward to me ordering a 2nd set of tubes for backup purposes. You have a customer for life. Thanks again.

Todd Piper

-----Original Message-----From: Anibal Ojeda [] Sent: Sunday, March 02, 2008 2:43 AM To:
Subject: Review on order order 17035

First of all, thank you for the very fast service & the good advice. I do believe is the main source for tubes on the web. The first time i got to this website i felt happy there is someone in this world doing this for the people who want to know more about the wonderful world of tubes.

Im a 5150 freak, ive been playing this amps for years.. first i had a 5150 combo & now i have the 6505 top. Is the best simple amp for rock guitar players in this world, the only thing you need are: to be able to play guitar & some killers tubes on it ;-)

The last one (having good tubes on it) is when i trust, i wanted something new for my peavey 6505, i wanted the sound to be the original sound but better ;-) after letting Bob listen to my music & having a good tube conversation Bob told me to go for the KT88-6L6GC-High gain Option, i was skeptical & even some friends told me this was impossible, since kt88 where never tested on 5150.. i ordered them.. since i had good experience with

I installed this following the instruction & i have created a monster. My peavey 6505 sounds amazing.. it kills !!

The something lacking, some people think about the 5150 is gone forever !! this amp can do thinks you can imagine. Warm ! rich in harmonics & thunder lows... man ! i wish i had this tube on it when recording last year !!

thanks Bob & jay

please dont advice too many people to use this set !! i want this to be my personal sound ;-)
With Kind Regards,

Anibal E. Ojeda Gonzalez

From: Dan [] Sent: Saturday, March 01, 2008 2:05 PM To:
Subject: got my new JJ tubes today

Hey Bob, I got my tubes today after just ordered them on Thursday. Man that was lightning fast. The tubes sound great. I Love the way my amp sounds now 100 times over. Thanks for all your help on
getting my Peavey Triple x combo sounding the way it suppose to. I will recommend you to every one I know. Thanks again. Dan

From: [] Sent: Saturday, February 23, 2008 4:01 PM To:
Subject: Thank you to everyone at Eurotubes!!

Hey All,
Just wanted to send a quick message to you about the integrated quad KT88/6L6GC high gain kit for my buds 5150 stock head. WOW! What a difference! We just finished up playing the amp for about 3
hours and we are really impressed. It's like the amp just came to life right before our ears! It really smoothed out the gain channel and added a little more bottom end which was what we were hoping for.
Also seems more articulate and notes really stand out more in chords than before as well. Anyway, Thanks again for all of the info on your site and for the fast shipping and great tubes as well!

Thanks again!
Brian M

From: will Spicer [] Sent: Thursday, February 21, 2008 5:53 AM To: Bob
Subject: holy crap--

Bob and all at Eurotubes--
i bought a set of tubes from you guys a while back for my new AC30cc2x as a backup for when the stock tubes gave me trouble. Well, it finally happened earlier this week so i made the change, following all of the directions in the how-to on the site.
i feel ripped-off, by Vox (er, Korg) that is. The sonic difference is night and day! My gain is unbelievable even with my weak jazzmaster pups. there is a richness that simply wasn't there before. finally i am
getting those ac30 tones i bought the thing for! and your how-to section gave me the confidence to do it myself.
All in all, my old favorite import from Slovak republic was slivovice, but now it is definitely JJ tubes, matched and rated by you guys. you are providing a crucial product and service to the guitar-tone
discerning public.
God Bless,
will Spicer

From: Schupp, John [] Sent: Wednesday, February 13, 2008 4:29 PM To: eurotubes
Subject: Re: Tubes for Mesa Boogie rack setup

Hey Bob,

Got the tubes and installed them last weekend. They sound amazing. Like many other reviews I’ve read, it “woke up” the amp considerably with minimal tweaking. There is much more separation in the notes
and everything sounds much more crisp and clean. Thanks for the great tubes. They really unlocked the potential that my Triaxis has been hiding all these years.

Thanks again,

John Schupp

From: Joe DiQuattro [] Sent: Friday, February 08, 2008 6:40 AM To: Bob
Subject: Thanks A Million!!!

Just wanted to drop you a line and thank you for your recommendations for tubes and a speaker upgrade for my Classic 30. The information on your website was instrumental in my choices as were your
thoughts when I spoke to you on the phone. My amp has taken on a more refined character. The lows are very full and "punchy" without being overpowering or muddy. The mids are just where I like them and the highs are quite present and detailed but not "stealing the show". Even my wife has noticed how the amp is no longer "brash" or piercing. I can play (around the house) louder for longer and nobody gets
annoyed!!! My G&L Legacy sounds like I always thought it should and for that I can't thank you enough. You have certainly earned my repeat business.

Quite Sincerely,

Joe DiQuattro

From: [] Sent: Friday, February 08, 2008 6:48 PM To: eurotubes
Subject: RE: Thanks Bob!!

Just wanted drop you a quick note of thanks for the great tubes, service and advice! When I received my tube shipment, I immediately scheduled some time with my local amp guru for biasing as you suggested. In 35+ years of playing,most of them professionally, playing various brands of tube amplifiers over the years and tons of tube changes, I must shamefully admit I had never considered getting any of my amps biased. Heck, they all sounded good after tube changes anyway, right? After reading some of your posts about the benefits of biasing on a few internet forums, I was curious but admittedly too lazy to drag an amp across town to the shop. But heeding your advice with this last tube purchase, I had my Rivera Quiana biased when I changed the pre-amp and power tubes. The Quiana is already a great sounding amp so I was not sure what to expect. After I picked the amp up, I went right f rom the amp shop to a rehearsal, fired it up but let it sit for a few minutes before plugging my Anderson Drop Top in and spanking a big open E chord. Wow! I was struck by the string balance, how the lower strings were now fat without being "boomy". I kept hitting open chords and letting them ring on. The guys thought I was nuts. Switching to channel 1(voiced more toward Marshallness), the preamp distortion now had a singing "voice" and does not have the raspiness it had before. Biasing made a great amp even better. Now, I wonder what all those amps (aside from my Boogies) over the past years would have sounded like with the right tubes and a bias job? Thanks again!!!

-----Original Message-----From: [] Sent: Friday, February 08, 2008 4:58 PM To:
Subject: jj tube set

Just wanted to say thanks for the speedy delivery of the jj tubes picked by you for my new pv delta blues 115 amp. Such a difference in headroom and tone.WOW!!!! I have several session 400 pv's , an old standell and a shobud and have played for about 40 years and I must say you guys know your business for tube amps. I would like to send the stock EH'S and sovtecks tubes out of my delta blues back to russia. Mabey they could send them to siberia or something.
-Thanks again-
Gary C. Willis

From: RYAN RISTER [] Sent: Monday, February 04, 2008 1:10 PM To: eurotubes
Subject: Crate V3112 JJ upgrade review

I own a Crate V3112 combo amp. The tubes that came stock with the amp began to die within one year of use. I bought one of your retube kits and this little amp became a monster! The punch and headroom that these tubes put out is unreal. I didn't even have to get the amp re-biased! The staff at Eurotubes is awesome at matching tubes and my output transformer thanks you for it! Ironically, I have been receiving many compliments on my tone from the audience and sound engineers at shows. The customer service was very fast and professional and that is what partially sold me on the upgrade. I can guarantee that you will see my name on your order list again!

Ryan Rister

From: gatorstudios [] Sent: Monday, February 04, 2008 8:03 AM To:
Subject: RE: C30 Tubes

Just wanted to drop you a line and tell you how pleased I am with the new JJ's in my Classic 30. This amp sounds incredible now! Louder, cleaner, warmer - I've run out of superlatives.It sounds like a different amp!
Thanks again for the advice and service. I'm a customer for life.

Bob Burke
Dunnellon Florida

From: Adam B. [] Sent: Sunday, February 03, 2008 12:11 PM To: eurotubes
Subject: Re: Palomino V32


Just sending a thanks for the prompt and personal service! The tubes arrived on Friday afternoon and I was able to install them and spend some time with my amp (Palomino V32) this morning. First
impressions are very favorable. Wow, what a difference... the properties I loved about the amp are retained and enhanced and it's no longer "sterile". It's so rich and textured... so dynamic and complex.

Your tube suggestions were great... thanks again from a happy customer.


From: Michael Cox [] Sent: Thursday, January 31, 2008 9:49 PM To:
Subject: EL84 TUBES

I received my JJ EL84 power tubes today and replaced the Mesa/Sovtek el84 with them in my Mesa Subway Rocket head.All I can say is WOW!!!! what an improvement with the Sovteks the mids were
spiky and ear splitting.The bass was flubby .With the JJ's ALL THAT WAS GONE!! The sound was smooth the bass was tight and clear the mids were strong and musical and the treble was glassy and smooth to the ears.THERE WILL NEVER BE ANY OTHER TUBES IN MY MESA THAN JJ'S FROM EUROTUBES.By the way all the preamp and phase inverter are JJ 883s preamp tubes too.
Thank you Bob and the gang from Eurotubes!!!
Michael Cox

Bob you have my permission to publish this on your reviews

From: Joe Woodford [] Sent: Thursday, January 31, 2008 4:17 PM To: eurotubes
Subject: Re: Follow-up regarding tubes for my Mesa Triaxis and 2:90

Hi Bob,
Just wanted to let you all know that the JJs sound great. The sound is smooth and the tone is incredible. The cleans ring out in the rhythm modes, and along with the lead channels I can cover all the material
that I'm playing from Skynyrd, Eagles, Leppelin, ACDC, Stevie Ray, Seether, Foofighters, Metallica, etc. The pick harmonics sound awesome. The gain of the LD 1 and 2 red modes are now very controllable, but the sustain and saturation is still there. I was worried about loosing this with the standard 83s in V2, V4, but it was the perfect choice. I love the gold pin 803S in V1 I think it smooths everything out just enough, and I think the 81 in V3 help tame the gain without neutering the amp. The matched and balanced 83S and the 6L6 in the 2:90 really has given my sound more punch and everything just sounds warmer.

Also, your shipping was excellent it only took a couple of days for the tubes to arrive in Atlanta.

Thanks again,

-----Original Message-----From: Verticchio, Paul [mailto:PV_erticchio@ILSOS.NET] Sent: Tuesday, January 29, 2008 1:28 PM To:
Subject: superior product & service again

Hi Bob.

The most recent set of guitar amp tubes I received from you were, at my request, completely different than my "usual" set. Once again, you met all of my spec's.

Here's the "gist" of my post:

We all know about the quality & benefits of JJ tubes so this post will deal strictly with Eurotubes' ability to "deliver the goods".

I hereby declare, both personally & professionally, that Bob can and DOES select EXACTLY the right grade of tubes to match your performance specifications. It's been my experience that Bob's expanded
grading system and unique ability to translate your wishes into product are unsurpassed in the musical instrument industry.

I cannot fathom why any tone hound would buy JJ tubes from any other source.


Paul Verticchio
Guitar Improvements LTD.
Jacksonville, IL

From: Tony Thireos [] Sent: Friday, January 25, 2008 8:10 AM To:
Subject: More tubes!

Dear Bob:

In December of 2006 I talked to you about a re-tube for my Triaxis and Dual rec. On your recommendation I went with GZ34s, 6L6s and the high gain "shred" style selection of tubes for the pre amp.

The result was awesome. I get guys drooling over my tone that play the same amp. I even had a friend of mine that is playing through two Bogner Ecstacy classics ask me why his dual recs didn't sound like
that. I suspect he may have been able to avoid spending $8,000 for those two heads if he had tried some tube options. Granted, the Bogners are amazing but now his dual recs are collecting dust.


Tony Thireos

From: Baker, Sam [] Sent: Tuesday, January 22, 2008 8:39 AM To:
Subject: ECC83S Matched Triodes in Marshall Mode 4

Got my ECC83S Matched Triode pre-amp tubes you recommended for my Marshall Mode-4. GREAT CALL! It virtually fixed the “flabby” low E. It still does it, but it’s virtually inaudible to anybody but myself and the sound is generally MUCH more crisp and focused compared to the EH 12AX7EH tubes that were in there. It really improved the overall sound immensely.
Thanks again for your help.
Ron Baker

-----Original Message-----From: ted scotch [] Sent: Monday, January 21, 2008 3:46 AM To: eurotubes
Subject: RE: Shipping options

hi bob i recieved the package sat afternoon, i installed the speaker and tubes in a gretsch playboy ,a newer model made by victoria amps, and took it to a gig sat. night.WOW i was in heaven all night . thank
yo for the great service and smooth transaction. it was nice to be able to buy both the speaker and tubes from you.hats off to you and ted weber for have great products an being able to get them in one step. i
will recommend you to all thank you ted scotch

From: Mark Vonk [] Sent: Saturday, January 19, 2008 9:46 PM To:
Subject: Re: Tubes

Hi again,

I was just visiting the Telecaster forum and wrote a small note on your replacement tubes for the C30.

Anyway, that made me write this small email: I really liked the tubes you have sent me. The sound of my C30 is WAY better now. Nicer clean and low gain overdrive. It really helped the amp tone wise. For 60 euro for these new tubes, it kept me from replacing the speaker and/or even selling the amp.

Great product and service, I can really recommend your products to everybody! Thanks again,


From: Doug Paslaski [] Sent: Saturday, January 19, 2008 9:49 AM To:
Subject: RE: Tubes I ordered for a Fender Champ 600

Hey guys,

I just wanted to let you know how happy I am with my new tubes that just came in for my Fender Champ 600. I also replaced the stock speakers with the Weber 6’ and this is a completely different amp. For 60 buck in upgrades (speaker and tubes) this little amp sounds like it cost over a grand. Bob thanks for taking the time to talk to me on the phone and asking how I want my amp to sound, you picked the
perfect tubes for my style. I have been telling everyone about you. Also thanks for the Bias demo on your site for the hot rod Deville. If not for that I would have wasted at least 50-75 bucks having a tech replace a light bulb and turn a screw.

Customer for life


From: Matt Mendonca [] Sent: Thursday, January 17, 2008 11:35 AM To:
Subject: Another great job

To Eurotubes Staff,
You guys have done it again! The tubes for my Epiphone valve head jr. arrived on wednesday after shipping on monday, and they are superb. Jay was very helpful in my tube compliment choice. The tubes
did exactly what i wanted, the amp now distorts at around 2 o'clock on the knob as compared to the stock 12 o'clock. The 803 over 83 for the preamp was a very good choice. The amp plain kicks more ass
now. Thanks!

Matthew Mendonca

-----Original Message-----From: Sean Whalen [] Sent: Saturday, January 12, 2008 5:02 PM To:
Subject: RE: Tubes, and Thanks!!

Hi Jay,
Thank you very much for the quick response, and the replacement EL-84. All is well, the new tubes are in the Peavey, and can now continue with rockin' and rolling!! The new tube install sounds excellent, very responsive and excellent harmonics. I am a new fan of JJ's! I've read about them, now am a believer. I have not yet installed the other set in the Marshall head yet, but getting anxious to hear them also!

I thank you again, and am definitely going to recommend (scratch that.... command my friends) to you, Eurotubes, and JJ's
to my friends!!

Keep rockin, and thanks!


From: Brian Cox [] Sent: Thursday, January 10, 2008 7:58 AM To:
Subject: Marshall Re-Tube Kit

I just want to thank your staff for the help they gave me over the phone with my questions I had about selecting tubes. I have a Marshall 900 with the 5881's and what to try a different tube option. After talking with your tech help I decided to go with the JJ KT77 gold option and all I can say is Good God ! what a difference. This has given my 900 a nice vintage and rich sound I never had before. In the past on the high gain channel you would basically get a very tinny sometimes harsh distortion sound which is great if your into speed metal. But now I get a rich Marshall Growl and the clean channel the tone is incredible. These new tubes have really given a nice real full tone especially in mid and bottom range and the highs are a nice crystal clear sound. My only regret is I have owned this amp for about seven years now and wished I made this change earlier. This is like owning a new amp.

Also Thanks for the very quick sevice and delivery I had them in 3 days all the way across the US.

Thanks Again
Brian Cox
Monrovia, Md

From: Matt Mendonca [] Sent: Wednesday, January 09, 2008 7:43 PM To:
Subject: Thanks for the tone!

To the awesome people at Eurotubes,

First and foremost I would like to thank you all for the extremely great customer service, seriously I ordered the tubes on Monday and they arrived here on Wednesday – woah! Let me move on to the tubes. Anyway, I had read good things about both JJ’s and Eurotubes. So, I ordered the standard retube for my blues junior, which was needed. And I do not regret it at all. Not only was the price cheaper than if I had gone with groves/sovteks, but the quality and tone was immensely better, as well as the convenience of all the tubes being matched and together in one package. After I had put the tubes in, I tried them out. First I went straight in with my strat with the amp dialed to clean, but unlike before the blues jr actually sounded like a fender. Before it had a good clean sound, but it wasn’t the fender clean- the clean you buy a fender for. Now it was. The highs were more present without being brittle, the lows were tighter, less fuzzy and farty, and the tone was lusher without losing the brightness. Essentially it was sounding close to deluxe or twin reverb (close not dead on). I was happy. So next I went on to the SG, this time I dialed it to overdrive, again it was better. I was able to nail, even better, the Clapton w/ blues breakers tone, it was like a mix of an overdriven super reverb (Derek Trucks) and a marshall. To sum up, I would like to greatly thank you guys for your awesome work ethic and awesome product. Now I’m going to have to do something about epi valve head jr. – tubes are good.

Matthew Mendonca

From: [] Sent: Monday, January 07, 2008 7:52 PM To:
Subject: Re: Customer Order: 15816


Just a quick followup to say,"you rock!"

My Rivera Quiana sounds phenomanal after having it re-tubed with your recommended JJ's and bias set at 38mA. There's a rich & warm crunch...and no more unwanted snap, crackle, pop & hiss. The amp runs super-quiet now, and I get much better response when adjusting EQ, Focus and Presence controls. My humbuckers sound great as always, and I really noticed an improvement with the single coils in my Tele.

Here's the way I see it: As musicians and tone geeks, we pay good money for our equipment. So, why not spend a few dollars to make it sound the very best. Similar to a nice guitar, which sounds pretty good with the same old strings. But regular string changes make it sound even fuller, richer...snappier.

The amp was fun before, but NOW she really sings. I'll be ordering more shortly to have a full backup set. Thanks for the easy ordering and super-fast shipping.

Keep up the great work.



From: eborup [] Sent: Saturday, January 05, 2008 8:40 PM To:
Subject: Thank you!!!

First off, Thank you for your suggestion to go with the matched 6L6’s and High Gain rated 12AX7’s. It was spot on! My Peavey Valve King sounded very good before, but now it sounds a hundred times better. I’ll put it this way; my Peavey had a body and some curves and now with the JJ Tubes it has a soul. Everything is louder, crisper, deeper and overall more pronounced. These tubes accomplished
the equivalent of adding a equalizer and compression/sustainer pedals. Even when the volume is set at “1” there is a distinct difference. Basically, with this set up, it sounds like it should and a whole lot more!
Here are some other observations regarding the Peavey Valve King 212. To replace the tubes you will need to remove the amp from the cabinet. If you do not you WILL break something or strip a screw.

The top mounting screws located on both sides of the carrying handle need to be removed, along with the four screws in the back. It will also help if you remove the metal bracket (that has the Peavey logo) off of the front. Once this is complete you have full access of the tubes and mounting brackets. As you recommend, I strongly recommend cleaning each tube socket. My amp was brand new and had debris within and around the sockets. Once the amp/electronics section of the amp is exposed it is very easy to change the tubes out. Also, here is something of interest. These are the tubes that my amp came with; 4-Ruby 6L6’s, 2-preamp 12AX7 Electro Harmonix and 1-preamp 12AX7 JJ tube. So Peavey is putting JJ tubes in their amps. How many is anyone’s guess. This isn’t a bad set up, but compared to the JJ’s…There is NO comparison.
In conclusion, EUROTUBES will be my primary source for tubes. Nowhere else can one gain so much knowledge regarding amp maintenance, biasing, reviews and general knowledge on tubes and their characteristics. You get one on one customer support with sound advice and the best price on quality tubes. As far as I’m concerned JJ Tubes are now the industry standard. I literally have zero complaints and nothing but praise for JJ Tubes and EUROTUBES. Thank you for providing outstanding customer service and an outstanding product. This is the way it should be. As long as I own a tube amp I will buy from EUROTUBES. Thanks again and keep it up. (Please feel free to post this on your site)

Jeff (Guitar player/Independent Duty Corpsman)

From: Renegade Arts [] Sent: Friday, January 04, 2008 9:51 PM To:
Subject: Just a note of Thanks!

Hey Bob,

I got my retube set for my Triaxis in today (Hi gain-Lo output), cleaned the contacts and installed them in the prescribed order and OMG!!!! My Mesa rig has never sounded so good!!! I retubed the Triaxis a few years back, switching from the stock Mesa tubes to Teslas on the advice from a local tube guru and noticed a considerably better sound in all modes, but your Hi gain, Lo output setup brought the Triaxis to the realms of sonic nirvana! Every mode from clean to hi gain sounds 100% better. I can't believe the difference. Why Mesa doesn't use these tubes is beyond me. I only quit playing long enough to fire off
this email to thank you for being the genius that you are! I found Eurotubes after reading some posts on one of the Mesa forums and decided to give you a try and I'm so glad I did! I'll definitely be back for more!!

Now I have to get back to my rig to explore new tones I didn't even know existed!

Well thanks again for the great service, awesome tubes and infinite wisdom!
Eurotubes Rules!
Rich Horn
The Last Band On Earth

From: [] Sent: Wednesday, December 26, 2007 6:56 PM To:
Subject: 5150II

Hey EuroTubes you did it again!!!!!!

My sick 5150II is back with a Hell Bent Vengeance because of you. Creamy OD that gets better with
ample warm up time (Ten Minutes). The amp takes on a life if it's own.

You guys are the best in the Good Old U.S.A. hands down..... I love dealing with your team. Every amp
that I own has been tonally fixed by the Eurotubes team......... Thank God..

Keep up the good work!


Mark Yaskulka
Westfield Center, Ohio

From: Thomas Soul [] Sent: Monday, December 24, 2007 4:51 PM To:
Subject: Thank you!

Bob, I just bought 2 6l6's to replace the original Peavey Classic ones in my combo. I was sceptical about how much tubes could make a difference so I thought I'd experiment with my cheapest and least
tubed amp. First I dialed in the best cleanest sound I could with the old tubes, then I cleaned the sockets and installed the new ones and flipped the switch, not expecting much change. I even recorded the old tubes thinking I would have to listen to them over and over to hear a tonal difference. But Holy S*&#t ! I can't believe the difference. This amp went from a tingy raspy piece of furniture into a thumping roaring animal. Just from two tubes! I have made a huge leap in the direction of acceptable tone and you sir have made my Christmas!
Thanks. Tom Soul

From: [] Sent: Sunday, December 16, 2007 3:46 PM To:
Subject: Tooobz eez goooood

Ok ... So I put a set of JJ's in my Carvin Vintage 50 amp and all they did was give it a smooth, warm, killer tone with a huge sweet spot to play in. They pumped some LIFE into that amp like I had never
heard before.

So now, I thought I'd give you guys another chance at it so I put a set of JJ's in my Fender Hotrod Deville amp. and EXACTLY THE SAME THING HAPPENED.

All I have left to retube is a Fender Blues Jr and another Carvin so you WILL be hearing from me again.

From: Tony Lacava [] Sent: Friday, December 14, 2007 7:58 PM To:
Subject: Marshall DSL 201, high gain set, and Weber silver Bell


I just wanted to thank you for all the advice and the excellent service.

I replaced the stock tubes in my Marshall DSL 201 looking to improve the amps overall sound.

I was not quite ready for the transformation that took place in overall clarity, dynamics, natural compression, and smooth even harmonic distortion. WOW ! The amp really sings with that pure Marshall tone that I was missing. When I finished re-tubing and changing the speaker it was about 1:00 a.m. and people were asleep, but even at low volumes, I could tell something magical had taken place. The next day, when I was able to crank it up, I experienced sheer singing sustain and magnificent clarity from what was a muddy sounding amp less than twelve hours before. I promptly called my bass player and informed him … I am now ready to rule the world !

Thanks to your videos I was even able to bias the amp myself and dial it in exactly where I wanted it to be.

The Weber Silver Bell that you suggested was just the ticket to compliment the tubes. Great call !

This is without a doubt the best money that I ever spent to improve my sound.

I cannot thank you enough. Please keep doing what you are doing as I am telling all my friends.

After the New Year I will get in touch to place an order to re-tube my reissue Fender Deluxe Reverb. I can hardly wait !

Sincerely, Tony J. Lacava

From: Michael Hoffmann [] Sent: Thursday, December 06, 2007 6:39 AM To: eurotubes
Subject: Re: Tubes!


Just wanted to write back and let you know how the tubes turned out. Let me just say all of the reviews weren't lying! I wanted that vintage crunch sound, and these new tubes help deliver that and so much more. I'm playing a Tokai Love Rock with Gibson '57 pick-ups... direct into my Traynor.

Man what a difference! I actually had the chance to play my amp with the JJ tubes right next to a stock YCV20-WR, and the difference in sound was monumental. Not only does it just sound better, but what I noticed the most was how much more control I had over my amp. I am still experimenting with different settings, but I can't believe how much more I can get out of this amp with the new tubes.

Thanks for your top notch service - you answered all of my questions, and your delivery was super fast.
- Michael

From: Paul Lovgren [] Sent: Friday, November 23, 2007 7:16 PM To:
Subject: Thanks!

About a year ago, I bought a Traynor YCV 50. It was a good little amp but was lacking the umph I was really looking for. For some reason, humbuckers sounded real muddy through it. At wits (and my music budget) end, I ordered your standard retube kit - EL34L's. I wish I would have done it sooner. You've created a monster. My lil' blue kicks some serious tail now. The clarity is amazing. Every nuance
jumps out now in hi def. Kudos to you and your people, Bob. Your service was excellent and fast - only waited 3 days in a holiday week. You've got a customer for life!

Paul Lovgren
Paramount, CA

From: Phillip B. Holmes [] Sent: Tuesday, November 20, 2007 9:20 PM To: 'Bob'
Subject: RE: Customer Order: 15555


Got em.

Please feel free to use this as a testimonial.

Gorgeous tone, man!
I should have listened to you a couple months ago. There is no comparison between your tubes and the Sovtek Mesa Boogie brand tubes. Now that I've heard your ECC83S in my V-Twin, the Mesa Boogie
Sovteks sound tinny and are almost unusable. Boy what a difference...your tubes are warm and musical. I should have saved my money and went ahead with yours when I retubed my 50:50 last month like you recommended.

Don't get me wrong, my rig sounded good with tubes in just my 50:50 power amp and I was still getting lots of compliments on my tone, but purchasing those Mesa brand sovteks for my preamp was a waste of money and time because it cost me that extra edge that your ECC83S tubes would have given my preamp. That's why I came back so soon (I could tell something wasn't quite right). It was like an itch I couldn't scratch. Those Mesa tubes still have a year on them at least (eBay time)

Anyway, for all you guitarists that could be reading this.. listen to Bob!

Warmest Regards,

Phillip B. Holmes

From: Matt Kashuda [] Sent: Tuesday, November 20, 2007 10:25 AM To: eurotubes
Subject: Re: Tubes!

Hey Bob, I received the tubes (Low gain option) in the mail yesterday and I installed them today. I must say that I am beyond impressed with the delivery time and the tone that my 5150 combo has now. I was thinking of selling it but I love it like its a whole new amp now. thanks and you can expect more business from me in the future.

From: Randy Bauman [] Sent: Sunday, November 18, 2007 4:19 PM To:
Subject: Thanks!

Thought I'd drop ya a line to extend my gratitude for your excellent service! Installed your re-tube kit in my TSL 100 today and everything went/sounds fantastic! Wasn't sure I was gonna tackle it myself until I found your website (referred to me by my brother) and watched your video on biasing. I'll definitely be back for any future needs!

Tubes by JJ, confidence by EUROTUBES!

Thanks again!
Randy B.

From: Gary Johnson [] Sent: Monday, November 12, 2007 8:23 PM To: Bob
Subject: Peavey Classic 50 2x12

Hi Guys,

I just wanted to let you know I have install my set of JJ tubes in my Peavey Classic 50 2x12, and all I can say is WOW!! The tone is so much fuller, warmer and Cleaner I didn't want to stop rehearsing

Those JJ ECC83S and EL84s are the "BOMB". "Man what a difference." I'm so happy right now, as I am typing this email, I feel a tear in my eye.

You guys a tube amp Gods. Thank you for the recommendation, and thank you for providing such excellent service.

I pray that God continues to Bless you, and Heaven smile upon you.

Once again Thanks,


-----Original Message-----From: [] Sent: Friday, November 09, 2007 6:45 AM To:
Subject: Tube set for my new Traynor

I just bought this Traynor YCV50 Blue on a whim. I came home to it sitting on my porch. So, I opened and played it for a while and though it sounded okay, it lacked any real feel to it. It sounded muddy when pushed and kind of cardboard-ish and thin. I happened to look in my mailbox and there she was as I had hoped for, the little jewels that would be my savior! (A standard retube with KT77's) Although a little skeptical at first I installed them and fired it up. At first it wasn't over the top but, the cardboard was gone! After playing for an hour or so the tubes started to open up like a blossoming flower! And there it is! This was a different amp then what I started with. Every amp wtih those sh''ty sovetek's deserve an upgrade like this! Makes a great X-mas gift for your amp! Or for any occasion. It'll have you playing deck the halls in no time! Now, I can't wait for my Mesa Lonestar upgrade! Merry x-mas,happy
birthday etc.. to me!! Thanks Eurotubes!

From: Ken Pullen [] Sent: Wednesday, October 31, 2007 2:19 PM To: eurotubes
Subject: Re: To Bob from Ken Pullen

Hi Bob,

About 2 hours ago I finished doing the complete retube and bias adjustment on my Dr. Z. Route 66 head with the tubes you said to order.

Good Golly Miss Molly...oooohhhhhhhh!

It took me 2 hours to reply from the sheer joy of the tones and playing for that long. I love my Peter Florence '59 Voodoo humbuckers, I love my guitar, I'm thankful for my fingers, and all those that came before me to lead the way, I love this Dr. Z amp and am glad Mike decided to begin building amps by hand in small batches...and now the final piece to the puzzle! These great JJ tubes. I love 'em Bob. I just love 'em.

Thanks as always for your patience and advice. No one else I've dealt with online, or for that matter in face to face dealings in brick and mortar stores has taken the care and time that you have. I learned how to bias properly because of you. I learned what tubes are the best and provide the best tone for me because of you. I also learned to spray my tube pins with electronic contact cleaner, and a bunch of invaluable other stuff from you. Thanks so much. You've always been there. You're company and tubes are top-notch. Guitar players and tube amp fans everywhere should be thankful for you and your company, and for the direct relationship you have with JJ Electronics over in the Slovak Republic (half my ancestry is from Eastern Europe by the way.)

In a week or so I'll order a backup pair of KT-66's to have on hand, or I may just go ahead and order a complete backup set of tubes for my Route 66 head...better to be prepared than have down time.

Thanks again.

I'll be back...


From: Jim Racicos [] Sent: Wednesday, October 31, 2007 5:23 AM To: eurotubes
Subject: Re: Retube Marshall TSL602

Hi Bob!!!!!!!!!!!!!!

I received my JJ's today, a full re-tube of high gain, matched and balanced tubes for my Marshall TSL602 combo. I just couldn't wait to clean the tube sockets, get the new 'glass' in and re-bias. Tried to lower my expectations whilst I got to work installing them. Boy howdy!!!! Does my amp rock now!!! Holy sheeeeeeet!!

Where has all my tone been up until now? I cannot believe the extra gain, feel and response to touch of my rig now. Pick or strum conservatively, she cleans up nicely, dig in hard and it just growls!!!
All notes are very clear and articulate and the harmonics just jump out when you want them to. I can't get over the fact I'm actually 'using' the tone controls for a change instead of just cranking everything
to '11' just to compensate for the less than satisfactory stock tubes they put in this thing. The biggest thing I noticed though is that I'm also turning down the gain in the crunch channel as well as the lead channel.

Everything is much more punchier and responsive and I dont need the gain flat out any more, nor do I need to put a overdrive pedal in front of the amp like I did before. Clean channel has, well, cleaned up beautifully and everything is nice and compressed and full. I cannot thank you enough for your time and advice. Your personalised service and A1 communication is exemplary (thanks to Jay also) and I have absolutely no hesitation recommending Eurotubes to my fellow musicians.

I'm gonna spread the word Bobby boy! I think I'll order a couple of your tshirts and get some advertising happening. As I write this email it's 11-00pm down here in Melbourne Australia. My wife was gonna kill me (neighbors are throwing things over the fence too, LOL) because I couldn't tear myself away from my amp. It was cranked, let me tell you and I only just managed to turn this thing off.

Thanks again to all at Eurotubes.
All the best to you and your family Bob.

From: Chris L [] Sent: Friday, September 28, 2007 10:14 PM To: Eurotubes
Subject: Re: Mesa Single Rect Re-tube

Thank YOU, Thank YOU, Thank YOU

I just got finished playing my "new" amp. After the recommendation from Eddie I went with the KT77's and the standard front end kit for the Mesa Rect-O-Verb. The guy I got my amp from had 2 Grove Tubes 12AT7 in V1,V2... 1 Grove Tubes 12AX7 in V3 and MESA 12AX7s in V4 and V5... Mesas 6L6GCs. I don't know how it all works but the new kit sounds amazing. I've never had my my Small Stone sound so rich coming from this amp. My amplifier sounds more like myself now. I know I'm going to enjoy every hour I spend on it.

Thanks a LOT!

From: Ron Wesley [] Sent: Friday, September 28, 2007 10:41 AM To:
Subject: Marshall Super Bass

Hello, this is Ron Wesley, I stopped by yesterday morning and bought a quad of E34L's for my '76 Marshall Super Bass. I just wanted to let you know that I'm very pleased with the tone and performance I getting from my amp with the JJ tubes installed. The tubes biased up to 70% very easily and I instantly noticed a bigger, more 3-D sound stage with more depth in the lows, fatter and more complex mids, and a singing top end that's clear but not brittle. The balanced ECC83S that I put in the phase inverter helped also, the amp really sings now. Last night at rehearsal all the guys in my band noticed a difference, even the drummer. I want to put a set of JJ's in my old '68 50 watt Marshall also, plus I have a couple more amps that could use some great tubes. Thank you for your help, my Marshall really ROCKS now!
-Ron Wesley
Titans of Oblivion

-----Original Message-----From: Paul Adams [] Sent: Wednesday, September 26, 2007 7:22 AM To:
Subject: RE: Tubes


I just got the new tubes installed into my 2:90 last night - replacing the factory boogie tubes.

All I can say is, "Holy ****". These tubes are absolutely amazing. I was using an eq before the power amp to try and remove some harsh frequencies. With the JJ's in the power amp I turned off the eq; I don't even need it anymore! I honestly cannot say enough good things about these tubes! The response is very well balanced and there just doesn't seem to be any harsh frequencies in there at all!

Thank you so much for providing such a high quality product. I know that the tubes themselves are a part of it, but the big piece, at least in my opinion, is that you have taken the time to carefully put together
well thought out sets for each amplifier; I really feel like I'm getting the most out of my equipment. You have earned a customer for life.

Thanks again,



-----Original Message-----From: nathan sander [] Sent: Wednesday, September 26, 2007 12:47 PM To:
Subject: RE: Tubes for a 1981 jmp 100 watt master volume

Bob, thanks for the suggestions on which tubes to buy for my Marshall. This indeed is the best this Marshall has sounded in my hands and probably ever. The KT66's do deliver a big, warm vintage sound. Man I'm so impressed with the sound it has me foaming at the mouth just waiting to unleash at band practice. You guys at Eurotubes know tube business and anyone that comes my way about tubes will be redirected to you. I have finally found that sound that has been buzzing around in my head since I've come to understand tones.
Thanks, Nathan

P.S. shipment was lighting fast... at my door three days after internet

From: Matt Davis [] Sent: Friday, September 14, 2007 5:40 AM To: Eurotubes
Subject: Thanks!!


I just got my high-gain full re-tube set from you guys for my new-to-me Ampeg S212R. As usual, the service from you guys has been incredible, and the tubes are even better than you say they are. I did not have a chance to re-bias yet because I had to throw them in and go last night but they already sound GREAT! This amp with the high-gain ECC83S's just sings. The clean channel is a bit warmer now but really seems to have the versatility to go any way I want it to. It's got some teeth when it's cranked a bit, but I dialed the bass up last night and played through a neck position Gold Lace Sensor on a strat-ultra/plus and I was amazed with the smoothness and articulation. The gain channel is AWESOME now. I compared it to my buddy's new Mesa combo. The Ampeg is so much more buttery than those types of amps, yet can just about keep up gain wise with the new tubes. I'm really impressed. The tubes were perfectly matched and the price is right.

Blessings on you guys,
-Matt Davis.

-----Original Message-----From: stuhankins [] Sent: Monday, September 10, 2007 11:27 AM To: Eurotubes
Subject: my new tubes are great!!!!

Not only is your service the BEST!! , your descriptions of the tubes sounds, have been very accurate.

I have purchased long plate pre amp tubes for my old Carvin x100, they are great. Your suggestion to buy a Weber attenuator was an excellent suggestion, I purchased a mass lite, it did the job.

I purchased some preamp tubes for a Randall rg50, I later had the amp modified to get rid of all the kid distortion. I still would like to unload the Randall, it doesn't have a lot of definition, I might try those two pre amp tubes I recently purchased for my HRD Fender.

This latest tube purchase the ECC81 and the ECC832 took all the annoying high and mid doinkiness out of the HRD Fender I own.

To date I have purchased all my tubes from you folks.

I really want to thank you especially for the excellent customer service you folks have given me. I switched from bass to guitar two years ago and I knew nothing at all about guitar amps, your help to date has
helped me find the sounds I love and the sounds I want to emulate.

Thanks again for your patience and help

Stuart Hankins

From: Rich S [] Sent: Sunday, September 09, 2007 8:36 PM To: Eurotubes
Subject: Thanks, and a question

Hi. Replaced all tubes in my HRDLX with JJ's (and switched from 6L6s to 6V6s), rebiased and I'm amazed.
The clean is much more musical, and I can even get a great breakup on the clean channel at reasonable
volumes. The gain channel now sounds much more like an extension of the "natural" sound, rather than a
processed, different animal. Very sweet - thanks so much for saving my amp.

Thanks for providing something few companies offer these days - great products, great prices and
unmatched customer service. Well done.


From: Jerry Gentry [] Sent: Monday, August 20, 2007 12:11 PM To: Bob
Subject: Re: Customer Order: 14269

HI Bob. I just wanted to let you know how pleased I am with the JJ tubes I've got installed in my Marshall DSL50. I've done some upgrades to the amP:

- upgraded the OT to a Mercury Magnetics built to Voodoo amp specs ( a vintage version)
- changed a few capacitor values to improve the high gain (red) channel
- added a choke, also Mercury Magnetics

With the upgrades, the amp has really developed a nice blossom that has all that depth of a Marshall. I just went through some tests changing the preamp (V1 and V2) tubes and the power tubes to several different ones I've collected over time. With the amp electronics set up where I want them the JJs, both power and
preamp, are the best sounding. In all the combinations I used, the full set of JJs are what provides the best sound overall. Nice sparkly highs and deep, solid lows. The overdrive is tight and deep. The clean is sparkly, but not brittle. Both seem very three dimensional.
Just thought you'd like to know.


-----Original Message-----From: Chris Story [] Sent: Sunday, August 19, 2007 10:52 AM To: eurotubes
Subject: RE: Tubes!

Hi Bob
The tubes arrived in good order. The gold pin EECC83 is frickin wonderful!! After letting it run in for the afternoon I put it to work in the V1 slot on my modded Hot-Rod Deluxe. Yummy... I recently got the new improved RP350 from Digitech which is a vast improvement to any of their previous models. It is so clean in fact it really shouts- put a warm tube tween me and the amp! The gold pin works perfect there! Played two shows Fri and Sat.. Just thought ya might want to hear another success story.

take care, have a great weekend!


From: [] Sent: Saturday, August 18, 2007 9:33 PM To:
Subject: Triaxis High Gain Preamp Set


I wanted to thank you for your excellent customer service. It was a pleasure seeing your shop and thank you for the directions.

The preamp set you gave me rocks! It turned the tones coming out of my triaxis from good to amazing. The sound is thicker, richer and more harmonically complex. The low notes have more attack and it almost sounds like the triaxis is playing itself when I solo.

I look forward to seeing what you can do with my Triple Rectifier in the future.

Thanks again,



-----Original Message-----From: jeff r [] Sent: Monday, August 13, 2007 8:36 AM To: eurotubes
Subject: Re: Tubes!


thanks for the incredibly quick order processing - i was shocked to find the tubes in my mailbox on friday!

I plugged in the tubes and my tri-axis has depth that i hadn't heard out of it before. These tubes give the tri a much more versatile sound than the "stock" mesa tubes had - it also cured the bass flab that i had been getting before (when turning the bass up over 4 on any heavy preset).

i'm psyched and grateful i ordered through you guys. Thanks again!

From: Benoit Boucher [] Sent: Thursday, August 02, 2007 9:02 AM To:
Subject: Re: Tubes


Just to let you guys know, the tubes for my Concert II arrived safely. Wow-- what a difference in tone! The drive channel is actually usable now! And the clean channel... just heavenly! What sort of magic pixie dust do you guys put in these tubes to make them sound so good? I'm starting to wish all my electronic products used tubes, just so I could put JJ's in them. Sure, the ipod would be bulky and would probably get very hot, but couldn't you just imagine how great it would sound?

Consider me a very satisfied customer!

Ben Boucher

From: Mark Holmes [] Sent: Sunday, July 29, 2007 9:33 AM To:
Subject: My third time.....

Hey Bob!

Just got done playing a gig with a new high-gain re-tube kit for my Mesa Nomad 45......this is the second re-tube kit I have bought from you, and again I have to say..."wow.....this amp rocks!!!!!" I even had some guitar friends in the club, and they all asked me how I "make" a Nomad sound so good(apparently one of the guys had a Nomad 55, and he said it sounded like crap).....I just smiled and gave them your card, and said "Eurotubes, baby.....the ONLY way to rock!!!!!!! This is the third time I've E-Mailed you about your fine products, and I am sooooo glad I "discovered" you.....both my Nomad 45 and Subway Rocket amps sound so good now that I have good tubes in them......I don't even THINK of ever ordering from Mesa-Boogie anymore......hell, you FULL RE-TUBE KIT is priced better than 4 of their "low noise SPAX7A pre-amp tubes!!!!!!
Don't ever stop, Bob..........if you do, there will be a hell of a lot of guitar players crying like little girls.......and that's no way for guitar players to act!!!!!

Mark Holmes

-----Original Message-----
From: Eric Ring []
Sent: Thursday, July 26, 2007 8:54 PM
Subject: Re: Tubes


From: Darrell E [] Sent: Friday, July 20, 2007 12:41 PM To:
Subject: Eurotubes Rule !!!

Hello to the great people at Eurotubes!

I just wanted to thank you for all of your help and advice! The information on your website is excellent! I just bought a older Randall half stack so i could get into a tube amp for cheap.The seller told me to try other tubes if i wanted to change the tone. I got curious and started to research online, reading for days about tubes. My research concluded and i was going to buy some JJ's because they got the best reviews. The only problem was i still was not sure which JJ's to get. That's when i found Eurotubes.

Eurotubes are a bunch of guitar freaks, that's when i knew i was gonna buy my tubes from them. I took the plunge and purchased your bias probe with my new tubes. With the info and videos on your site and the instruction sent with the probe i felt like i was born to bias amps. Jay set me up with tubes and i decided to get two types of power tubes so i could swap for different tones. Before I re tubed my 1992 Randall Pro Tube 1000 (55watt). It barely sounded better than a Line Six Spider 2!
I was starting to think i should have put the money towards a Mesa or Marshall. Now...well you know what i am gonna sounds BAD ASS !!!! I seriously have no need for a new amp now!

It is amazing how well this amp reacts with different tubes. I can get all kinds of different tones...its awesome ! The bias trim pot happens to be on the bottom of the amp. I carefully measured and drilled a small hole in the bottom of the amp cabinet, now i don't have to remove the amp to re-bias the amp when i want to swap power tubes. ( gee i wonder if that makes me a genius or !) I wish i could keep Eurotubes my little secret, hoping to have other guitarist wonder why i sound sooo good... But instead i tell everyone that they just have to check out Eurotubes and get re tubed!!!

Keep up the great work!
Highest regards,

-----Original Message----- From: [] Sent: Wednesday, July 18, 2007 8:14 AM To: eurotubes
Subject: RE: Need a Retube for Budda SD 30

Hey Bob,

Just letting you the new tubes sound fantastic. I always wait to review new purchases until I have rehearsed at home, rehearsed with band, and actually gigged with them. Anyway, as usual the JJ's did not disappoint. That balanced triode really makes a difference in my Budda Series One SuperDrive30. Budda still insists that Groove Tubes are the "OEM" tubes, but this set sounds ten times better at half the cost. I am playing a Carvin Holdsworth HF-2 "fatboy" semi-hollowbody with fat humbuckers and the tone just oozes from this
combination. Conservatively rated at 30W this amp cut through the band without sounding harsh and with a minimum of help from the PA system. What I especially like is how versatile this rig is with these tubes - I play modern rock with my band, but I study jazz and its nice to be able to use the same amp for all styles. Buddas are known for their intense overdrive, but I just love the clean sounds it gets with these tubes. I received numerous unsolicited compliments after the last gig with my band. What I really liked was how much more controllable my feedback-tones are now.

Unfortunately for you guys, these tubes are so reliable and long-lasting that I probably won't need to see you for a few years, but you can bet when I need new ones again, I'll come back to Eurotubes. I recommend you all the time.

Thanks again
David K. Hopkins

PS Thanks to Jay and Eddie for their great customer service!

From: [] Sent: Wednesday, July 11, 2007 9:22 PM To:
Subject: THANKS!

To Bob, and the whole Eurotubes staff,

I just wanted to send a quick "Thank You" for doing buisness the way it should be done. I've been a customer for a few years now, and continue to recomend you guys to everyone who will listen. You carry a great product, ship fast, have great prices, and AMAZING customer service.

I just thought you all should know that your efforts are much appreciated. Please don't change a thing.

Keep up the great work, and thanks again,

Jade Lowrey

From: Jason Brennan [] Sent: Thursday, June 14, 2007 6:17 PM To: eurotubes
Subject: Re: RE:


Thanks for your help. I got my XXX 6L6 hi-gain kit today and swapped out the old tubes.

These tubes rock. It really improved the sound of every channel. First, the clean channel really cleaned up. It was fine before, but didn't have much spank or sparkle. I'd say replacing the tubes Fenderized the cleans quite a bit, which is funny, given that the tubes I yanked were Fender-labeled Sovteks.

The 2 distortion channels really opened up. Is there more distortion? Yes. But the interesting thing is that now the entire range of gain is usable. At very low gain settings, it's grittier than it was before the swap. But these low settings work really well now and sound really great. Before switching the tubes, the gain channels sounded kind of mediocre with the gain lower than 10 o'clock. But now it's like having 2 new tweed/blues/classic rock channels when I keep the gain low. At the higher gain settings, there's more sustain than before, but the nice thing is that the distortion is more articulate and spanky all the way through the gain settings. You'd said that the hi-gain kit is great for sweep-picking and the like, and you're right.


From: Dennis B [] Sent: Wednesday, May 30, 2007 8:33 PM To:
Subject: Any other words of advise for me?

Dennis Brown here, I put the tubes in for my Fender Hot Rod Deluxe you sent me and I took your advise on getting and putting a Weber speaker in my amp, I thought you should know that I now believe you guys are Amp God's. I never would have believed a Fender 1/12 deluxe could sound like mine does right now, Holly &#&$#, Talk about tone and smooth, It melted the ice in my tea that was 10 feet away, Glassy yet smooth and warm, I could not have explained this sound and you guys nailed it, Anything else I should do? Oh and thanks for having the bias clip on there too, that was very helpful and it worked great, I also took your advise on the meter and do it yourself thing too. Well it's getting late and my neighbors might think I am done for tonight, and I am not, LOL!

Thanks so much, OH and by the way, You got this sounding so good I took my 4/10 Mesa in to be sold, I won't need it now.

Thanks, Dennis

From: Tony Lewis [] Sent: Friday, May 25, 2007 12:55 PM To: eurotubes
Subject: Re: Epiphone Blues Custom 30....needs good tubes!!

Bob and Jay,

just a note to follow up on my order. i put the Rectifier tube GZ34 and the 6L6GC's in my Blues Custom 30 by Epiphone.

as usual, your advice was right on. your tubes make this amp incredibly great sounding. the added low end is much more tight and punchy!! the highs are crystal and defined.

why can't you guys talk these amp company's into using your tubes stock instead of the Sovteks? the difference is night and day!! you guys are superior.

great job!! Talk to ya next time i need tubes.....

Tony Lewis

From: Chris Worthington [] Sent: Thursday, May 24, 2007 1:55 PM To:
Subject: THANK YOU BOB!!!!!!!!!!


You are a true tone Guru! My 6505+ is an entirely NEW beast, thanks to you! (KT88/6L6 high gain kit and bias mod) I never, in a million years would’ve thought that a retube would make this huge of a difference. No more muddiness, no more shrilly/tinny awfulness, and the cleans…………OMG the amp actually has a useable clean channel now. And the difference in clarity is astonishing. I can’t believe how much of my chops were lost in the muddy distortion before. I had to go in and readjust all the settings on my effects! LOL And you really went beyond the call of duty, walking me through the whole process, not to mention you saved me two 120 mile round trips and probably $60! I will recommend you and your company every chance I get. The tube setup you suggested made my amp go from something that sounded like refried Yeti ass, to something that sings, cries, growls and screams with the absolute best of amps! Seriously, I cannot thank you enough!!!


Chris Worthington

-----Original Message-----From: Brad C [] Sent: Saturday, May 19, 2007 11:15 AM To:
Subject: happy customer

Hey guys, just letting you know I received the tubes for my AC30, and the difference is quite astounding. I thought the difference would only be subtle, but I was wrong. The factory configuration of tubes sounded like a windy lake of choppy water, but the JJ's are as smooth and clear as a moon-lit pond. So long as you're selling, I'm buying.

Thanks, Brad

-----Original Message-----From: Jon F [] Sent: Tuesday, May 15, 2007 4:39 AM To:
Subject: peavey classic 50

Just wanted to let you know that I recieved my tubes (C50 Normal clean - High gain Lead) today, pretty impressive shipping only 6 days to australia. I have to say that the amp is now sounding friggen awesome!!!! The drive channel has more bottom end and "BALLS" now and I am getting one of the sweetest brownish sounding tones I've ever heard, my angus riffs sound like their just off the record and I never thought I would be able to pull off master of puppets so convincingly either with this amp. I don't think I will be needing to buy a distortion pedal any more as there is plenty enough gain for me now, my eq will boost enough for solos. The clean channel seems more sparkeley now too more fendery, better sounding overall.

Thanx again your products are second to none and I will be returning whenever I need new tubes.


From: paul southard [] Sent: Monday, May 07, 2007 7:46 AM To: Eurotubes
Subject: My EL 84's....

Well.My quad set of EL84's for my PV Belta Blues allready arrived...That took like 5 days...Pretty friggin good service if you ask me..ANNNDDDD..They sound FANTASTIC!!!! I am a bit of a skeptic when it comes to stuff like "You Wont BELIEVE how much better your amp sounds when you cram OUR tubes in there".....But I gotta admit...They sound KILLER...I woulden't have believed it...But there you go.....Thank you guys very much..I am a total convert forever..And I will spread the word..You can count on it.....Cheerio

Paul Zahl (Southard)
Spectre Studio
Oostend Belgium

From: Joe F [] Sent: Friday, May 04, 2007 4:02 PM To:
Subject: Thanks so much!

I recently bought my first tube amp: a 1976 Fender Twin Reverb. I was really excited until I discovered that it had been refitted with Groove Tubes 6L6B's, which I had recently learned were by no means the best tubes available (not to mention really shrill-sounding). I bought a set of your JJ 6L6GC's and a bias probe and I have to say the difference was amazing! Thanks so much for carrying a great product and offering free instruction on how to bias amplifiers. I emailed your store and one of your guys, Eddie, told me the sweet spot for the Twin. You saved me a trip to the amp tech and my amp sounds better than ever. Thanks again!

Joe Florez

From:  Bruce [] Sent: Thursday, May 03, 2007 11:15 AM To:
Subject: update on Traynor YCV80 standard tube kit

Hey guys…
I’ve had the new tubes installed in my YCV80 for about 2 weeks now. After discussing various options over the phone, it was decided the best kit to use was the standard kit for the YCV80. I have to say that I am VERY happy about the results. Also, my band-mates immediately noticed an improvement in tone from the amp after the re-tube. I had two main problems with my amp before the retube…muddy low end and a harsh top end that was horrible when the gain was cranked and boost on. After the retube, the gain is MUCH smoother, and sustain seems to be a lot better. Its almost like my gain goes to “11” or “12” now. Additionally, unlike before where the gain channel with the boost switch off was pretty much useless, this setting now provides the most incredible classic rock crunch that is very responsive to pick attack and guitar volume. The most noticeable improvement, however, was on the clean channel…WOW!! The bass response is fantastic…very defined and articulate. When the clean channel volume is around 6-7, the tubes start to break up, and with the clean channel dimed the tone I get from this amp is UNREAL. Paired with my Strat with Lollar Blondes pickups and Callaham bridge, I now have vintage tone all the way. I spend more time running through the clean channel, no effects, than I ever did before.

Thanks for the great customer service and excellent product. The packaging and speed of shipping were equally impressive. You’ll be getting my business for years to come.

Bruce Waldrop
Birmingham, Alabama

-----Original Message-----From: James E [] Sent: Wednesday, May 02, 2007 7:16 PM To:
Subject: great tubes!

Hey, I had read about the JJ tubes online and thought it was a bunch of hype and that a tube is a tube is a tube and I put in some of ya'll's tubes today on reccomendation from a friend and I was literally blown away by the difference between the JJs and the stock Sovtek tubes. I really couldn't stop playing this afternoon. Thank you so much for a great product and such speedy shipping.

James P Eddy

-----Original Message-----From: [] Sent: Wednesday, May 02, 2007 6:57 PM To: Bob
Subject: Re: Customer Order: 12581

Hay I just wanted to say that after putting the 6L6GC's back in B-52 it sounds great again. Man the sound is just so much more there, it sounds deeper, clearer, much more crunchy, much more dynamic. Awsome, the difference between the JJ 6L6GC's and the Sovtech 5881's is night and day. The Sovtech's just sound shallow and fizzy in comparison. Thanks alot.


From: Peters [] Sent: Wednesday, May 02, 2007 3:06 PM To:
Subject: Re: Tubes

My tubes arrived early this morning. After a once over, socket cleaning etc, my new tubes are in, biased (38ma) and running. All I can say is WOW!!!. My 5150 has not sounded this good...ever. And I've had it since the year they were introduced. I was excited when I added the bias mod and quite pleased, but the addition of the JJ set was the final piece of the puzzle.

Thanks again and I will definitely be back for the next re-tube.
Yours thrilled,

From: [] Sent: Wednesday, May 02, 2007 2:47 PM To:
Subject: New Tubes

Thanks a million!!!!! Just got in my KT 88 and 6L6 GC Integrated set for my Peavey 6505. Man what a major difference. Extreme bass, and out of this world punch with excellent pick attack!!! The delivery couldn't have been any faster neither, and I'd also like to thank you for that. Can't wait till I can get the pre amp tubes from you. Awesome.

Steve Kamps

From: [] Sent: Saturday, April 28, 2007 9:24 AM To: Bob
Subject: Order #12211: Thank You!!

Bob -

A few weeks ago I ordered a full retube kit for my Marshall JCM2000 DSL50 (Hi-gain KT77 option). I finally had a chance to fire up my Marshall after re-tubing it a couple of weeks ago, and I have to tell you that the sound that came out of that amp really exceeded my expectations. The tube kit delivered exactly what you promised and then some: tons of gain, plenty of low-end amp has more balls than the Celtic's locker room :~)

I just wanted to take a minute to say thank you. You really know your stuff. You can count on me to spread the word (and website) of Eurotubes to anyone willing to listen.

A very satisfied customer -
Thomas Zwilling

From: ckerns [] Sent: Wednesday, April 25, 2007 7:14 PM To:
Subject: Tubes Rock!

I have been playing my Crate VFX5112 (with extension cab) and my Crate VFX5212, both with your JJ's tube recommendations for over a year now. At nearly every gig, somebody comes up and asks me "what the heck kind of amp is that? I have never heard an amp sound so good". Well, as you know, the JJ's you recommended are the reason (not to mention the Celestion Century Neo speakers). The clean is so perfect, better than a "Twin", I think. The overdrive is sweet and controlled and the sustain is just forever.

I never miss a chance to tell everyone about Eurotubes and JJ's. By the way, if you type in "best tubes for guitar amps" on the 'net, JJ's comes up 8 out of 10. Hmmmm, I wonder why? Heck, I've got JJ's in all my tube overdrive pedals, too!

We are going down to Nashville to do some recording and I will be taking my VFX5212 with me.

Take care and keep up the outstanding tube work.

Craig Kerns

-----Original Message-----From: BRENT HANNAH [] Sent: Tuesday, April 24, 2007 10:21 PM To:
Subject: Thank You


I Recently retubed my Traynor YCV50 with the KT77 option and WOW is all I can say. I have always liked this amp, and I have been playing with the factory tubes for about 2 years. But I was getting a bit of tube rattle and I wasn't getting the same volume that I was used to.

Anyway I replaced the tubes and played it at home and really noticed it had a lot more bottom end. It wasn't until I took it to practice that I really saw the difference. Typically I play with the clean volume at about 6 and the master at about 4. So I started with the master at about 3 and I nearly blew the place apart! But more than the volume, the amp is so much more responsive and crisp, and tons of bottom. I can't wait to use it on stage.

If I ever had a complaint about the amp it's that the gain channel sounded thin unless the gain was cranked. Now I can crank the volume and use the gain to adjust the loudness. I can set it so that it sounds like the clean channel with just a little more volume & crunch, but hit the gain boost and .... holy sh*t!!!

Anyway, thanks again

Brent Hannah
Edmonton, Alberta, Canada

From: The Kinders [] Sent: Friday, April 20, 2007 7:33 AM To: 'eurotubes'
Subject: RE: Tube Order and possible issue with ECC83S-HC in V3

Hi Bob:

Thanks for the quick response. It turned out to be a bad amp from Peavey. Returned it to the Guitar Center and got another one. Put in the tubes and WOW what a difference. JJ tubes are a GREAT product!!!!!! As I am new to tube amps, I was completely blown away by what “good” tubes could do for an already good amp. My Classic 50 just sings on the clean channel and the overdrive channel now has a nicely defined clarity to it and much better distortion (bought the normal clean/high gain option).

By the way, my son’s Valve Jr. head sounds fantastic after putting in the JJ tubes you suggested. I don’t even have to bug him to practice anymore. Thanks!!!!!!

Greg Kinder
Fresno, CA

From: Jeff Tome [] Sent: Sunday, April 15, 2007 3:51 PM To:
Subject: Recent Fender Retube.

Just wanted to thank Eddie and all the folk at eurotubes. Just did the 6L6GC retube of my Fender Blues Dlx RI. Used your bias probe/multi meter to rebias the amp and it sounds totally cool, 100% better. The thing just sparkles on clean playing my gibby LP std. It really makes the LP come alive. Gets the sound I've heard in my head but couldn't quite get out of the amp, clean mids and sparkling clear highs. Drive channel sounds better (though I wouldn't throw away my pedals). And between the printed directions and your "how to bias" it was the easiest thing in the world. I can't believe anyone would pay a tech to bias an amp. Again, a million thanks. You guys did a great job. Next up I think I'm going to try the 6V6 option.
Jeff Tome

From: DANIEL BUCKLEY [] Sent: Friday, April 06, 2007 8:47 AM To:
Subject: Crate V3112 Re-Tube

Dear Eurotubes - Just retubed my V3112 combo with JJ's. Excellent sounding tubes! Really smooth and pleasant. I appreciate your over-the- phone service and taking the time to discuss my tube needs. You deserve your good reputation! Thanks again.

Dan Buckley
North Haven, CT. USA

From: Maclellan, Michael M [] Sent: Thursday, April 05, 2007 3:53 PM To: Ted Weber;
Subject: RE: Si lver Bell ... Mass Lite - Speaker-Amp Impedance question

Thanks for the prompt Response to my questions.

Just wanted to let you know that I just put the Silver Bell into my DSL 401 today along with JJ tubes from Eurotubes, I have to say that I was a little skeptical about how much difference this was going to make ... Well, all I can say is AWESOME! The tone and dynamics in the sound I now have coming from my amp is better that I had expected. Even my wife commented on the difference.

Haven't tried the MASS Lite yet but will be experimenting with it soon.

Mike M

From: [] Sent: Thursday, March 29, 2007 11:38 AM To:
Subject: Order 12078


I could not wait any longer so I installed the tubes in my Classic 30 Head even though my wife works from home. I kicked the tires and lit the fires, and that baby burns man burns. That amp sounds perfecto, perfecto and perfecto. You really made my day a lot brighter, it sounds like I paid $3,000 for a "boutique amp", not a menial $400 for this Peavey head; smoking man, this amp's tone is the perfect balance for me! Tight bass, creamy mid's, highs sing and the amp breaks up smoooooth. My 5150II full stack sounds like a toy practice amp right now, guess what amp is next on the Eurotube re-tube order list. You guys are tube tone geniuses...... Like I stated in previous e-mails before I found you guys, I bought a similar JJ tube configuration from the for this this amp, and the tone stunk so bad I put the Russian factory tubes back in!

I wish you all the success in the world with your business, it was truly my pleasure dealing with your team. I am a 39 year old MBA Sales/Customer service/Business consultant by trade; your current business model/philosophy works, keep it up!!! I just wish more companies would keep true to their initial sales convictions; simple sales/value added philosophical purity, keep the faith, and prosperity will always follow. Eurotubes is a class act entrepreneurship in my book. You cats got your tube tone craft down to a science!!

God Bless,
Mark Yaskulka
Westfield Center, Ohio

From: matt [] Sent: Monday, March 26, 2007 9:20 PM To:
Subject: carvin V3 with KT77 high gain option

Bob,just replaced the tung-sol preamp tubes as well as winged C EL34 power tubes in my carvin V3 that i purchased from the tubestore.I opted for the KT 77 high gain option and man this thing is a killer dude. Good bottom end and crunch, the palm mutes are just off the hook man! I biased it @ 38 ma just like you guys said to do!Thanks for the video,it was nice to be able to do it myself! You guys truly are a blessing to all of us seeking great tone and quality! Keep up the good work! I am a customer for life!sincerely,matt galindo.


From: Ryan  C [] Sent: Monday, March 26, 2007 8:58 PM To:
Subject: RE: Tubes

To everyone at Eurotubes:

I just wanted to give a little bit of feedback on my recent purchase.

I have an Epiphone Valve Junior Head that I installed a set of JJ’s into (ECC83S & EL84). I have to say that I am very impressed with this amp now that the stock Sovtek Tubes are no longer in it. It definitely sounds richer with more detail across the whole frequency range of the amp. I was originally going to call in and get recommendation as far as tubes for my little 5 Watt head, but there was more than enough information on the web page for me to make my purchase and not feel the slightest bit worried.

I live in NY (about an hour or so south of Syracuse) and these tubes were delivered lightning fast. Placed the order very early Friday (1AM EST) Morning, and when I checked the mail during lunch on Monday, there was a box from Eurotubes sitting there. The set of tubes were packaged very well, with the box busting at the seams with packing material.

I couldn’t be happier with my purchase from Eurotubes and with the JJ’s. When it’s time to change the tubes in my other amps, I know where I’m going…

Thanks guys. Great company you have there…


-----Original Message-----From: Rob Hendrickson [] Sent: Monday, March 12, 2007 1:49 PM To:
Subject: Wow!

Jay and Bob:

I'm sorry I haven't written sooner--the tubes you sent me have absolutely transformed my Carvin X-amp from my last-on-the-list-to-play, to my new favorite, by far. I've had this amp for over 20 years and barely played it. Now, thanks to your recommendation of the JJ KT77s, the bias kit and the new set of JJ preamp tubes, it is an unbelievably great sounding amp.

I can hardly believe it's the same rig. Thank you so much for putting me on to these great tubes. I'd write more, but I have to go play now.

All the best,

Rob Hendrickson
Troy, MI

-----Original Message----- From: Tom and Marilyn Bader [] Sent: Sunday, March 11, 2007 8:39 PM To:
Subject: tubes for harp amp

I bought the tube set for the Blues Jr. setup for harp a few days ago and I'm blown away! Not only am I able to play at a much higher volume without feedback but the tone is awsome. Not a Fender Bassman but much closer to that tone and punch than I would have dreamed possible from such a small amp! The tone gets better as the tubes get hot and get 5 or 6 hrs use on them. Love them and thanks for your help. Never had anyone who knew about harp amps help me out. You guys are great!

Tom from Beaverton, Or.

From: Mike [] Sent: Saturday, March 10, 2007 9:47 AM To: eurotubes
Subject: Re: 5150 EL34, Legacy Tube bias, etc.


Thanks for the info on the bias job. I received my JJ high gain 12ax7 kit for my Legacy, thanks. I had bought this Legacy head not working, as is and it ended up needing a power tube board. I got the parts from Carvin (awesome to deal with and cheap parts), had by amp tech do the repair and set the bias at 80% per your
recommendation. He is an awesome tech and guitar player. He does tons of mods on all kind amps and is a true believer that the best grind comes form power tube distortion. He has a collection of 20+ hand wired amps (Fender, Ampeg, some he has built himself, etc) that he has turned into snarling beasts. The point of that is to say, he is not a fan of master volume amps. When I picked up the Legacy from his shop we demoed it with the stock preamp tubes that were in it when I got it. Sounded great, it is an awesome amp.

Then we let it cool for a minute and change out all the preamp tubes with the 5 I got from you. What a change. It was as if a blanket had been removed from the tone. My tech Mike was gushing with praise about the tone with words like "musical", "warm", "responsive", "organic". etc. I was in fact blown away. I liked the amp at first, but the JJ's made a HUGE improvement in tone and now I LOVE it. I am not one to give out ringing endorsements lightly or make blanket statements, but after I play this amp for a while and get past my initial jaw dropping, if it all holds true to what happened yesterday, only JJ 12ax7's will be used in my amp collection from now on. I have been a playing pro for over 20 years and you are welcome to use this e-mail and quote from it as you see fit. I am ecstatic with the tubes, your service and the ability to buy
tested, high gain, balanced tubes for a reasonable cost. Of the course the most important thing is they sound AWESOME.

Mike Fryzel

-----Original Message-----From: Phillip A. Prevost [] Sent: Wednesday, February 28, 2007 4:23 PM To:

Attention all VOX AC-30 Custom Classic Owners:

Buy a Full Retube Kit from EUROTUBES for your VOX now. Do not hesitate, your preamp tubes WILL burn up within your first couple of months of purchase. And while you’re at it there are like a million screws so change out power tubes and rectifier too. Here is what you need:

ECC83S Standard x2
ECC83S Balanced x1
EL84 Matched Quad x1
GZ34 x1

These tubes are delicious! They turned my amp from a mediocre Chinese import into a classic sounding AC-30 that any VOX purist would be proud of. After I initially changed out the tubes and turned the amp on I was blown away by the overdrive and crunch settings, but when I flipped all my knobs to clean I screamed. This amp sounds so tasty! JJ’s were the nutrients my amp craved. I can never buy another brand again.

Phillip Prevost
Bakersfield, California

From: Tony [] Sent: Tuesday, February 27, 2007 8:51 PM To:
Subject: Re: Tubes


Just wanted to let you know that the tubes (KT77 High gain kit) arrived today - very fast shipping btw, only 5 days from USA to Australia - and they are excellent. I've installed them, rebiased the amp and it has just about blown me out of my socks! My TSL100 never sounded anywhere near as good as this. I'm a big fan of all KT series tubes, and to have a set in my Marshall just gives it that much more low end grunt and a generally fatter tone than the standard EL34s. The balanced ECC83S for the phase inverter makes a big contribution to the overall tone as well. Having never experienced this in my amp, I can really hear the difference. It just 'speaks' to me now when I play. Amazing.

So thanks again, your outstanding service and great products have definately got my repeat business.


Tony Shaw
Melbourne, Australia

From: jesse Newnham [] Sent: Saturday, February 24, 2007 10:22 AM To:
Subject: Re: Tubes

Tubes arrived and I am pleased beyond words. As an old tube head I have had two Carvin X100b's, '86 and and '89 hot rod and a Marshall 4104. I bought the Fender HRD White Lightning as it appeared to have all those things a tuber should have. After a day the power tubes were already microphonic and my ear could not accept the low note buzzing and the overdrive was lacking that essential element I was seeking, buyer's remorse ensued.

My buddy turned me on to the Eurotube site and a bit of hope sprung. I installed the tubes and was immediately pleased after a few tonal adjustments. Last night I took advantage of Bob's bias video and re-biased from 61 to 89 and my little tube amp really started singing. The lead tone in the more drive channel now sounds like what I was hoping for when I bought the amp, long soulful sustain with complex controllable harmonics.

JJ's are fantastic tubes and I suspect over the next week they will only get better. Thanks for turning my remorse into delight. These little HRD's are not Marshall's or Carvins but with the right tubes (JJ's,) biased right they produce an extremely satisfying tone.

Jesse Newnham
Coos Bay, Oregon
30 years playing tube amps

-----Original Message-----From: Judson A [] Sent: Friday, February 23, 2007 10:48 AM To: eurotubes
Subject: wow

i am blown away... i have been putting off a recording project for some time now because of being so frustrated with my tone... I tried different mics, every guitar imaginable and only NOW am I excited to get going with this stuff again. I figured there would be an improvement, but for $100 I just made my Vox AC30 sound good for the first
time since i bought it.. I think im a better player all the sudden haha...
thanks so much for your great customer service and product!

-----Original Message-----From: jeffrey s [] Sent: Monday, February 19, 2007 5:11 AM To:
Subject: Thanks Bob!

Hey Bob,

Your pal from KC, MO here again. Just wanted to drop you a quick note of thanks for the help in my tube search. I ordered a pair of ECC83s and two EL84's for my Vox which came in within 2 days. It took me all of about 10 minutes to crack open the chasis of my AC15 and install them. Keep in mind I don't buy into mojo, hype, pixie dust, or any other thing that guitar players w/ more money than chops do, but I can tell you the amp sounded wonderful. The brittle highs were gone. The overall warmth was increased but the 'chime' was still fully intact. It went from a good amp to a great amp in a matter of minutes and I have your great business to thank.

Count me as a fan of JJ's and Eurotubes! I have already spread the word to just about everyone I know and proudly display my Eurotube sticker on my road case!


From: Kevin L [] Sent: Sunday, February 18, 2007 1:58 AM To: eurotubes
Subject: Re: Tubes

Hi Bob,

The problem I had was with the battery in my multi-meter. I put a new battery in &, hey presto, everything
was working okay.

The bias with the trim-pots fully closed was around 28mV so I had plenty to go at!!

I biased the tubes to 40 mV & plugged a guitar in - my main guitar is a Les Paul Standard.

I can only describe the sound as awesome!!!! I could not believe that changing tubes could open up the
tonal qualities of an amp so much!!! I know you've heard this a thousand times but this DSL50 was on its
way to e-bay before the re-tube - now its like a totally different amp & its going nowhere!!!!!

Bob, thanks a million for you're help - I will certainly be getting all my tubes from now on from yourselves &
recommending Eurotubes to everyone I know that plays guitar!!!!!!

Very Best Regards,


From: Richard Servon [] Sent: Thursday, February 15, 2007 4:06 PM To:
Subject: I'm a Believer


I just received my order of tubes from you, just two hours ago. I order the Blues Option #1 for my Deville and and a set of 6V6's and a couple ECC83's for my Deluxe. I have spent the past couple of weeks pulling my hair out trying to decide between new production and NOS and which new production etc... So I decided to do my own taste test. I ordered the JJ's from you SED 6L6's, and TAD 6L6's. Yours were the first to arrive and I'm done. The Deville had the stock Sovteks which are horrible. I replaced V1 and V2 with some Mullard ECC83's I had laying around and that improved it a bit-a little smoother but the More Drive channel was still pretty unuseable. So your tubes came today and I put them (pulled out the Mullards). I cannot believe the difference. The drive is so much smoother and creamier but the best part- that Bassman-like honk that these amps have used to disappear when I used the drive channels but now it is there and that's a big F^&%ing deal to me.

I doubted you. I was hesitant. I thought you were just another guy trying to make a buck off of Eastern block crap but they're for real. Thanks.

P.S. The Mullards are NOT going back in.

Thanks again,
Rich Servon
Milltown, NJ

From: Keith Allen [] Sent: Wednesday, February 14, 2007 11:34 AM To:
Subject: Short review: JJ's rule!

Greetings Bob,

I'm no stranger to Eurotubes and JJ's. I've used the E34L's in my Carvin X100B and MTS for years with great results. Recently it was time to replace the stock tubes in my Carvin Legacy amplifier and for my tastes there was no choice other than Eurotubes. As a gigging musician I rely on Carvin tube amps as a major part in my process of delivering sonic mayhem to North Carolinians, i.e., kicking ass and taking names Loud 'n' Proud! Just today I dropped in the high-gain Legacy retube kit with E34L's and biased the amp up to a nice warm 38mA. My neighbors might hate me now after a good 2-hour test drive, but who cares? JJ tubes made an already fantastic amplifier even better!

Keep up the good work. As always, the service at Eurotubes is top-notch. JJ's rule!

~Keith Allen

From: Guy R [] Sent: Tuesday, February 06, 2007 1:41 AM To:
Subject: Re: [Norton AntiSpam] Tubes

HI Jay,Hi Bob,
Just wanted to say thank you, thank you,thank you,for all your help! I'm pulling some tone out of that hotrod deluxe that i used to only dream about and I'm only running about 78mv and it sounds great.

Just like you guys had stated that my drive channel will become so useful. I'm an old blues player playing about 40 years or so and what i like about this amp is that it is small and light to carry around to practice or gigs.Its a pretty big bang for the buck also.but these jjs made a huge difference, on my first drive channel i just run the gain at about
two and i just get the nicest blues tone ever.On the more gain channel for my southern rock and country rock i can run the gain up and down and get a ton of variations of tone!unreal!

Not only do i have real good head room and clean as can be but that little bugger is loud and seems to have alot more punch. My ash tele sounds real good but my texas specials on my strat are a great match for these tubes in this amp.

This amp went from a pretty good sounding amp to a great amp, thanks again and i will be trying some of  your other tube combos in the future such as the 6v6s and 832 in v2 slot.For right now the Fender HRD full retube kit is awsome.Eurotubes rule!

From: Nate Glover [] Sent: Monday, February 05, 2007 5:29 PM To:
Subject: My contribution...

One thing I can I never thought my thin, bright, Blue Voodoo could sound...decent. I loaded it with 4 6L6's, 1 ecc83 gold pin (V1), 2 ecc83 standards (V2-V3), and 1 ecc83 balanced and matched (V4). My low end is so deep I had to turn my LOWS down. Its not as bright anymore. It is balanced perfectly. I can't express my thanks enough. Jay, thanks so much for being patient with all my questions, it means alot. Im the only person in my family that plays I sound like my dad is a pro, and he bought me a professional quality amp. My blue DOODOO, is now my Blue VOODOO. Thanks!!!!

From: william [] Sent: Tuesday, Feb 01, 2007 4:40 PM To:
Subject: help!


I recently purchased an older, used, Peavey Classic 30. It still had it's original tubes, and they were shot. I knew (know) nothing about re-tubing an amp, but a friend told me about tube depot. These guy's were little help to me.Three phone call's over a two week period, and I never talked to a tech guy. The fellow I DID talk to finally offered that EH tubes were good, so I had a complete set sent to me.( 3~12AX7's, 4~EL84's biased 31,31,31,32.) These made a big improvement over the tone it had when it was broken. However, as much as I like the clean channel, the distortion channel sounds cruddy. I want this amp to be capable of sweet, warm, clean, AND have good singing, sustaining, distortion tone at moderate volume. The reviews on harmony central led me to you. I play an Am. Std. Strat with stock PUP's. I play contemporary christian, and southern rock. I play at low, to moderate volume at home, moderate at band practice (full drums, two miked vocalists, p-bass/ampeg, and me) and about the same, but miked, at gig's. Can you help? I will consider changing everything based on your recomendation and reputation. If you say no, I'll respect you for that too.
Thanks, William.


I wanted to drop you a line and let you know I received the tubes you picked out for me. As you may recall, a few month's ago I purchased an older, used, Peavey Classic 30 with faulty original tubes, which I replaced with a new set of Electro Harmonix. Though the clean channel sounded O.K., the lead channel disappointed me. After several frustrated months, I was looking to purchase a pedal to try and get the tone I wanted. That's when I decided to contact you. You gave me your recommendation of tubes based on my style of music, and equipment, and I placed my order. That was Monday afternoon, and I'm writing to you on Friday. The JJ tubes sweetened up the clean tone measurably, but the lead channel sounds like a different amp. It went from irritating and unusable, to sweet and musical. Thank's for your help, expertise, and awesome customer service.

From: [] Sent: Monday, January 29, 2007 1:39 AM To:
Subject: Re: Tubes

Jay and Bob,
Thank you very much for the wonderful service and helpful advice. The tubes got here in one day!! I ordered the E34L high gain retube kit for my Mesa DR and it has made a great amp even better. All I can say is wow. More definition, faster response, just an overall cleaner sound. It also makes my 7 strings sound that much more musical, the low B has so much more punch now, and it responds so much better to my playing style. My bandmate's jaws dropped when they heard it and they couldn't believe it was just a tube change. I'll be coming to you guys for all my tubes from now on.


From: abradford [] Sent: Saturday, January 27, 2007 6:14 AM To:

Subject: Fender Tubes

Good morning guys ---

I wanted to report the results of the new tubes for my little Fender Princeton recording amp. In a nutshell ..... EXcellent. The sounds are REAL Fender now, vintage Fender. Amazing, harmonic clean tones like i couldn't get out of it before. The breakup comes on smoothly, and has greater dynamic range. Even the onboard Overdrive circuit sounds good now! This amp mates with my Strat beautifully. I actually don't care too much for the onboard Attenuator .... i want to hear the true fendery tones shine through. The JJ's put the "clean" into Clean again!

Eurotubes scores another touchdown! It's Eurotubes 14, stock tubes 0.

Have a great day guys.

Best Rgds,

Andrew Bradford

From: Brian Young [] Sent: Saturday, January 20, 2007 6:14 AM To:
Subject: Re: Tubes

Just wanted to write and thank you for the quick and helpful service. the tubes for my Hot Rod Deluxe arrived yesterday and I installed them last night.
I'm not a techie, but I watched your video on the website on how to bias the amp. After watching it a few times, I felt confident I could do it. I went to Radio Shack, bought a multimeter and did it. Just as in your video, my amp was biased cold, I quickly adjusted it to around 88mv and closed the amp back up and plugged in.  What a difference! It's like the amp has come to life. Major improvement on both the clean and drive channels.
Thanks again...

From: DCTR [] Sent: Tuesday, January 16, 2007 5:42 AM To:
Subject: Happy customer says thank you.

Hi Bob,
 Just wanted to say thank you so much for all the help with my Marshall (6100), my multi-meter, and teaching me how to bias and live to tell about it. I tightened the pins like you advised (to butt-tight, as I recall) and now both the 6l6s, and the E34Ls sing like little demons...(in all power settings now!) can't decide which set I like better, they both sound great. Come to think of it, none of those things that you took your time to help me with are what I would expect from someone selling a product in a very competitive market, but you did, and I thank you. If this makes the review page, and your looking for someone who absolutely "Will make the Service after the Sale" Look no further! I am just old enough to remember what it was like in the late 60s when customer service was not the exception, but the norm. We all know that most places that we give our hard earned money to these days don't give a shit about much at all, ditto going an extra inch to help a customer. Bob does, he is clearly "Old School" in this regard. Once again, thank you Bob.... You have earned my continued business, and I have already referred several other musicians to you, and will continue to do so.
 Tony Randall
 Grants Pass, Oregon

From: abradford [] Sent: Saturday, January 13, 2007 5:43 PM To:
Subject: My Tube replacement:

Good evening Bob --
I wanted to tell you that the 12AX7 replacement that i bought for my Vox Tonelab is nothing short of REMARKABLE.  What it's done for it is to completely open it up sonically .... the low's are now solid but not muddy, the mid's are full and rich, and the high's are clear, sharp and smooth without brittleness or fizziness.  The amp and cab models are now much more clearly defined, without unwanted distortion or graininess.  I'm glad i decided to do this.....and i'm glad i ran across Eurotubes !!
Andrew B.

From: Aaron K [] Sent: Thursday, January 11, 2007 10:45 AM To: Eurotubes
Subject: Re: Mesa III Bass Amp Tube Question

Just dropped the tubes in last night! Freaking amazing! The tone I've been wanting was more mesa tubes ever. The complete wall of rock is complete! You are my tube guy now officially!
Thanks again for your very straightforward service with no BS, it's very much appreciated in this day and age!
Aaron K

From: Michael D. Breinin [] Sent: Thursday, January 11, 2007 9:47 AM To:
Subject: Tubes Received

I just wanted to drop you a line and say that I got the replacement tube kits for my Pro Juniors yesterday. I opted for the gold pin pre-amp tubes.

WOW! What a difference. They really brought the amps to life, warmed them up nicely and cut the noise down by about 90%!!

I am very satisfied, thank you very much!


From: Chris Williams [] Sent: Tuesday, January 09, 2007 8:39 PM To: Subject: Re: Carvin V3 re-tube kit

Hey man, Chris Williams here from Denver.  I got my tubes today and installed them as soon as I got home from work.  All I can say is....
I can't believe the difference in my Carvin V3!  I loved my amp already, but now I can't believe I ever played with those stock tubes.  These JJ's are absolute tone monsters!  Your suggestions (E34L high gain option) were perfect for me.  It's like I have a brand new amp!
Not only is the sound crisper, tighter, and crunchier, but these new tubes have doubled my EQ frequency range.  I'm turning everything down just to calm these babies down.  Infinite headspace!
The bias probe worked like a charm too.  Everything is running at optimum power now!
Please send out many many thanks to everyone at Eurotubes.  You guys are the absolute best!
A customer for life,
Chris Williams

-----Original Message-----From: Kevin R [] Sent: Saturday, December 30, 2006 5:28 PM To:
Subject: order arrived

Hello ;

I just received the JJ tubes from Eurotubes this week and am really pleased , I'll be sending another tube order in for one of my other amps. I have several other JJ 12AX7's and EL 84's but purchased them from another dealer over a year ago . The gold pin 12AX7 and the 81 and 82 JJ tubes you sent sound warm, even and detailed, but with a smooth top end and are working great in my Peavey 30. I play non pedal steel guitar and any Russian preamp tube I've tried including the current Tung-Sol have somewhat of a
piercing treble that is not evident in the JJ's you sent. This order replaced 2 EH 12AT7's and a Tung-Sol 12AX7 . The EH tubes are pretty decent but a bit generic sounding compared to these JJ's. The Tung-Sol was pronounced as " the best 12AX7 in production " by a reputable dealer but to my ears the gold pin 12AX7 JJ sounds better right away with this rig .



From: Mark Kata [] Sent: Friday, December 29, 2006 5:21 PM To:
Subject: Re: Lone Star Special Retube Kit

Hi Bob,
I installed your retube kit in my Mesa Boogie Lone Star Special this afternoon, and it just sings.  The highs and mids are creamy and the bass is nice and tight.
I'll always use your JJ tubes in my tube amps.
Thanks for the great products and great service.
Mark Kata
Shelby Twp., MI

From: Jim Konish [] Sent: Wednesday, December 27, 2006 7:17 AM To:
Subject: Blues Jr Retube Kit


I just got your Fender Blues Jr Retube Kit for Harp Players and I absolutely LOVE my amp now!!!  Those tubes changed it from an okay harp amp to a classic vintage-sounding amp.  Now it's got much smoother tone, more volume before feedback, and a different character to the distortion that fits harp far better than the stock setup ever did.  I'll definitely be recommending your site to my friends.  Keep up the good work!!!

Jim Konish
Harp, trumpet
Deep Blue Shag

-----Original Message-----From: Baran, John F [] Sent: Monday, December 18, 2006 6:18 AM To:
Subject: RE-TUBED JCM 2000


Hey guys/gales: I reloaded my JCM 2000 with the recommended tube package and the sound has done nothing but wonders for my 2000 it like a 360 degree turn-around with a tighter bottom end, more clarity without a brittle high, better sustain with nice, smooth mids/ harmonics. In the pass I've spent a lot of money on other tubes trying to find the ideal tone that I really wanted. So in search of more tubes I came across this web site ( and read the customers comment and decided to give it a try. I must say that JJ tubes are the best and would not settle for anything less!! I recommend the tube package for any JCM 2000 owners looking to upgrade their sound. Give it a try and you will not be sorry! Hats off to EUROTUBES..............


John Baran

From: GERARD JUSTER [] Sent: Friday, December 15, 2006 11:24 PM To: Bob
Subject: Re: Customer Order: 10336

Hi Bob,
Got the tubes yesterday. Nice job on packaging. Your service is top notch.
I put them in my THD BiValve this evening and let them simmer for about an hour then dialed in the tone I was looking for. I replaced a pair of blackplate RCA 6L6GC's in the amp prior to putting in the 77's and was bracing myself for some what of a let down but boy was I surprised. These are awesome tubes!!!! The preamp tubes are two NOS beauties, an early '80's Mullard 12AT7 and a smooth plate Telefunken 12AX7.
Here is what I heard. The low end in full and tight. The mid range is detailed and the highs sizzle but are not brittle. Overall the tube tone ranged from creamy to a clear chimming high end sizzle. Overall I was blown away by this tube. I will just put the RCA's in storage and bring them out when I'm trying to remember what a great 6L6 sounds like. For now I'm enjoying the 77's a bunch.
I love the blues and these did not disappoint. I managed to dial in a tone reminiscent of early Mayal and the Bluesbreakers. If you are familiar with the song Walking on Sunset, that’s the tone I was targeting and managed to get it. I set the attenuator at about 3 o'clock (25%) and turned the attitude knob (kind of like a presence setting) up to about 75%. Set the volume at 12 o'clock about 50%. When played clean this setting gave me that high end sizzle. The bass response was thick and creamy and the midrange had enough detail to be recognizable and did not get lost. I later ran them through the paces and opened up the amp to see what the headroom on these tubes was like. No problem they gave me everything I wanted and more.
Bottom line these are fantastic tubes, period!! I'm not a tube snob but love so many of the old stock tubes out there because they just seem to be better overall tubes, primarily in tone and construction. I have been pleased with the JJ's I've purchased and played JJ 6L6's, EL84's, an ECC832 and ECC83's. The KT77's however are my favorite. Just a bit different from other power tubes, and tone to die for. I would recommend these to anyone who needs to give their amp a tone tune up. It's all there. Thanks for sacrificing your GEC KT77's so JJ could produce this awesome tube. I will buy more. At this price these are a steal. Thanks.


From: Anthony Puglisi [] Sent: Friday, December 15, 2006 6:01 PM To: 'Eurotubes'
Subject: RE: Hot Rod Deluxe Re-tube kit

yo man!
got the tubes today and i just installed and rebiased that shit (that thing was at 53...weak) up to 66ish...the tone is SPOT ON. clean and fat without all that HRD early break up. the amp sounds like a whole different ball game. the baritone finally sounds the way i envisioned it and my guitars are juicy. very very happy. 
thank you so much for your guidance. much appreicated!
cheers and happy holidays!
another satisfied customer,

From: mark thompson [] Sent: Saturday, December 09, 2006 7:17 AM To:
Subject: Tubes


   Tubes arrived today. Thanks for the all round top quality service and the superb tubes . For any UK customers reading this use Eurotubes ! I use my Ibanez (tone zone, air Norton) through my Peavey Bravo filled with JJ’s .SM57 in front of amp to PA and lord that’s all you need ! I shit you not I can carry my gear from car to gig in one trip ..The sound is what you’ve always been looking for …. ….. You can’t get service and price like Eurotubes in the UK  … People that want to talk … Amazing ! ….. I owe you all a Pint !!

  Cheers Mark

-----Original Message-----From: Juan Carlos Martinez [] Sent: Monday, December 04, 2006 6:40 PM To: Eurotubes
Subject: Kit arrived in Mexico

Bob Thanks for the super fast shipping! the Mesa high gain kit arrived today and I put them on as per your instructions and cleaned all the contacts, the Amp sounded really good before, now it SCREAMS, I am so happy and def the extra bucks for a high gain set is Worth it, I now have the excat Petrucci sound straight from the mesa with no efects, pedals, nothing !!! Really crisp bottom end and super ringing highs, I have a fernades sustainer and the feedback is incredible the satch screams are perfect...cant wait to play mymesa head live..

thanks a lot

Juan Carlos Martinez

From: kevin k [] Sent: Wednesday, November 29, 2006 7:19 PM To:
Subject: Re: Tubes

Hi Jay, Bob, and everyone at Eurotubes.
I received my nicely packed tubes today and just wanted to let y'all know I couldn't be happier with my first purchase from you.  This is the first time I've used JJ tubes, and even though I've heard nothing but good things about them (and Eurotubes), they've (you've) exceeded my expectations in every way.  I'm blown away with how good these sound and how happy I am I ordered them from you.  Your service is top-notch: great communication, fast shipping, best prices, best tone.  I can't wait to place my next order.

From: [] Sent: Tuesday, November 28, 2006 6:29 AM To:
Subject: Blue DeVille Retube, Order #10061

Thanks guys, got the tubes.  WOW, that really brought the Blues DeVille to life, almost unbelieveable really.  I've had wonderful results with my two previous JJ retubes, but this is, without a doubt, the best of the bunch.  And, I only have a little over an hour on the tubes, will most likely get even sweeter.  The ice pick-in-the-ear highs are gone and the lows and mids are nice and fat and warm, and I can keep it nice and clean at high volumes on the clean channel, which is one thing I really wanted.  Not being much of a technician, I'm always amazed at the difference that can be achieved with the JJ retubing. 
Anyway, thanks again.  The tubes, service and lightning fast shipping are, as always, the best in the business.

-----Original Message-----From: Christopher Kirk [] Sent: Monday, November 27, 2006 7:37 PM To: Eurotubes
Subject: Thanks so much..!!

Bob and company,

I got my Triple XXX high gain retube kit today. I installed them...and wow...just wow. A breath of new life just entered the 120 watt lungs of my amplifier. First off, the tubes installed by Peavey in the preamp section were (1) Groove tube, (1) Electro Harmonix and (2) Sovtek. I was a little thrown off by that. But out with the old and in with the new...the new tubes absolutely sing! The high end just glistens, especially with the neck pickup in the upper fret register. The mids are smooth as silk, the lows are tight and full.
I never thought that I would ever brag about the Triple XXX's clean channel, but I'm amazed at what these have done to it. It's full, pronounced and organic. Eurotubes, you sell a wonderful product, and I will continue to support your business with my business. Oh, and yah, the free sticker is going on my car...!! You hear that everybody!?!? You get a free sticker...!!

Thanks a million watts!!

Chris Kirk
Little Rock, Arkansas

-----Original Message-----From: [] Sent: Wednesday, November 22, 2006 3:29 AM To:
Subject: Thanks!

I would just like to to tell everybody there that I got the JJ tubes and Weber speaker I ordered for my Peavey Classic 30 today and I'm extremely pleased. The amp sounded good before, but vastly better now. I found out about Eurotubes on the web by reading amp reviews and reading forum posts, and I wish I found out sooner. I bought more expensive tubes elsewhere for my Fender Pro Junior and I wasn't so pleased at all. I will be dealing with Eurotubes exclusively in the future. I am very impressed with the level of customer service in particular. Bob had a question for me about a choice I had made and he emailed me back immediately after my order, then when he did not get a response he called the cell number I provided. He informed me about something I did not consider and I changed my order accordingly. I got the impression from this, and from reading
on the Eurotubes site that Bob and his family are VERY into what they do, and that is nothing but good for the customer. I will tell everyone I know who might ever need tubes to call Bob or visit on the web.

Thanks so much!

John B Stevens


-----Original Message-----From: Thrash-head Hablewitz [] Sent: Tuesday, November 21, 2006 7:44 PM To:
Subject: Your tubes rule!!!

I first found out about you from a friend of mine who had bought a set of your JJs for his 5150. I however, play a Mesa/Boogie Triple Rectifier and was not convinced that I'd get the same result from my gear. So I bought a High Gain 6L6GC and ECC83 set for my rec, if for no other reason than because any improvement no matter how miniscule would still be an improvement, so why not? Well, the improvement was anything but miniscule. Even at low volume and on the cheap hunk of junk speaker cab at the guitar shop where my amp was serviced, this thing ROARED with new life! And when I played it at band practice the next night and at a gig two nights later, this thing bloomed like a flower. My low end is tight, but still with plenty of rumble to really round off those palm-mutes. This tone is just so damn aggressive and resonant, abrasive yet not brittle, and really about as
perfect as can be. So perfect, that my plans of buying a $2500 high gain boutique head next year have effectively been thrown out of the window. I don't need it! I got this awesome Triple Rectifier with the perfect combination of tubes and a higher bias setting, and I got tone to spare. You and your tubes have already inspired me so much. You've just made a customer for life!

Arnold Hablewitz,

From: Kevin Waide [] Sent: Thursday, November 16, 2006 8:22 AM To:
Subject: Thank you for the tone.

I just wanted to write and say thank you for the tone.  I have a Fender Hot Rod Deluxe that is around 5 years old and have been fighting with getting a decent tone out of the amp.  Well, I finally broke down and ordered the Blues Option #1 re-tube kit from you, and WOW!!!  The first thing that got my attention was how quick they actually came in.  I had them in 2 days.  Re-tubed and hit the road to Memphis (I had a show that night).  Well, everyone from my band to the patrons commented on how great the tone was.  You have a lifelong customer here.

Kevin Waide

From: Mauro Lasao [] Sent: Tuesday, November 14, 2006 1:21 PM To: Eurotubes
Subject: RE: need tubes badly !!!

Hi Bob…

I ordered the HRD high gain kit on Friday and got them on Monday.  I installed them in no time and wow, what a difference it makes!  I got the missing highs back and the amp responds much more dynamically to my playing.  I watched your biasing video over the weekend while eagerly awaiting for the tubes to come in and that sure helped for a first timer like me.

Those tubes are really amazing.  Even at low volume, they are very sweet sounding and lots of definition.  One thing I noticed right away too is the tight bass response.  It’s thumping even for an amp with only one 12.  I crank it up with a BOSS DS-1 on the front end and it yields a singing lead tone.  I’ve been using that BOSS pedal for a few years now but after the re-tube, it is now so much more responsive and open, not squashed…

Thanks for all you do and yes, you can post this in the testimonial section.

Mauro C. Lasao
Clearfield, UT

From: Douglas White [] Sent: Monday, November 13, 2006 6:27 PM To:
Subject: Thank You!

Hi Guys,
I received my tubes today for my Hot Rod Deluxe. Fast shipping! I really didn’t expect them so soon. Well, anyway, I was pretty tired from a day at my normal job, but I was pretty psyched that the tubes were here. I actually have a rehearsal tomorrow night and was debating whether to start this tonight. Well, I ran out to Radio Shack and grabbed a digital multimeter (and stopped at Carvel because the 9 year old was with me). I came home and watched your video on the “how to bias” and I couldn’t believe how easy it was. I am now really ready for rehearsal tomorrow. I just purchased an extension cabinet to go with the Hot Rod. With that and the new tubes, it sounds absolutely amazing.
Thanks again,
Douglas K. White

From: Eric H [] Sent: Monday, November 13, 2006 7:15 PM To:
Subject: KT77 appreciation


My girlfriend bought me a matched quad of your JJ KT77 tubes as a birthday present and I must say it has been the best birthday gift ever. I put them in my ENGL SE and biased them about 4 hours ago. I cannot believe how awesome this amp sounds. It has more chuck, tighter bass, less midrange honk yet the mids are still plentiful, and smoothed out the highs plus added more headroom. It even sounds like the amp has more gain. I will never go back to EL-34s.

Thanks Again,

From: Jon Bradford [] Sent: Thursday, November 09, 2006 7:09 AM To:
Subject: JJ's Revived My Mesa Boogies

Hey guys:  Thanks for all your help and suggestions.  Following your advice, I reloaded my two MB 50 Caliber+ amps with JJ's, and they sound vastly improved: tighter bottom end, more clarity without brittle high end, and better sustain with nice, smooth harmonics.  You were even kind enough to guide me through some questions I had while replacing my old tubes.  I would recommend your JJ retube package for any MB owners looking to upgrade their sound, and your service is outstanding!
Jon Bradford

From: [] Sent: Sunday, November 05, 2006 4:04 PM To:
Subject: Thank You!!!!

  Thank you sooo much for the help with the tube choice and the amazing service on purchasing new tubes for my Evil Twin. It has never sounded better.... I've owned it for 6 years now, and no other tubes have made it sing like these...
Not only that, your responce to my emails and calls were fast, on time, and very helpful. You've made a lifetime client and I will recommend you to everyone I know!
Brian Scott
Hebron MD

-----Original Message-----From: Rick Low [] Sent: Tuesday, October 31, 2006 4:50 PM To: Bob
Subject: Satisfied Customer

Hi Bob,

I just received my tubes yesterday and had to write and let you know how much I appreciate a company that values customer service as much as your company obviously does.
Evan with the computer problems you had last Friday you were able to get my order out the door in time to ship before the weekend. I am very pleased with the warm rich tones now coming out of my little Blues Jr, not to mention the added growl the high gain option has given me.

Just wanted to say thanks and tell you to keep up the good work. I will definitely be a long time customer.

Best regards,

Rick Low
Oxnard, CA

-----Original Message----- From: Lucien Nocelli [] Sent: Monday, October 30, 2006 12:06 PM To:
Subject: Re: Tubes


I wanted to drop a line and say thank you. You guys are great. Tubes are out of this world. My JCM2000 never sounded like this. The combination of KT77 and Gold 83's and Gold 803's are the best, truly. Your staff is the best.

Bob, I biased them myself for the first time thanks to your information on the site.


From: [] Sent: Monday, October 30, 2006 6:05 AM To:
Subject: Re: Tubes

I know I am the customer but I want to thank you for the tube set up you sent me for my Peavey Classic 4/10. The shipping to me here in Houston Texas was incredibly fast! My amp that I thought just had an Ok sound now sounds incredible after I changed to one of your tube kits (Rock with moderate breakup). Once again Thanks for a great product delivered with outstanding customer service.
Your New Life Customer
Kevin D Anderson 


From: Dorian Jamison [] Sent: Saturday, September 23, 2006 7:14 PM To:
Subject: Thanks

I just want to thank you for distributing a truly remakrable product. I just bought a brand new Kustom '36 Coupe, in which I was disappointed by its harsh and mushy sound, especially after reading rave reviews for this amplifier. I immediately ordered a set of 6L6s and ecc83s to replace the Sovtek power tubes and the Electro-Harmonix preamp tubes. After I installed the Eurotubes, my jaw dropped and I literally could hear a HUGE difference!! I even compared the tubes by looking at them, and it seemed like the Russian tubes were just poorly constructed. It was like comparing a 24k diamond to cubic zarconium. After installing the tubes, the sound of the amp got tighter, the clarity became...well...clearer...the amp I had expected to sound the way it should have sounded suddenly became the amp that it was supposed to sound like (my my impression). I swear by this product and will tell everyone to replace those crappy Russian tubes with JJ's Eurotubes for ANY amp that has been tubed with Sovteks. And for the price - especially after comparing to Groove Tubes prices for the NOS tubes, was a bargain. You truly turned a dissapointment into a joyous day of afternoon playing. I am going to call Kustom and tell them that if they want to sell what I consider a remarkable amp (because it is after it was retubed), you need to tube it with the right stuff. You have literally saved - by the testimonies that I have read - many guitar players - including myself, from repetitive disapointment. Thank you for discovering a great product and sharing your discovery to the rest of us.
Dorian Jamison

From: Johan Gunawan [] Sent: Tuesday, September 19, 2006 8:48 AM To: Eurotubes
Subject: Review Gold Pin Preamp Tubes for TriAxis


As usual, the shipment is amazingly prompt.  I have used the gold pin set for about one and a half week and do notice the difference between the gold pin set and the regular high gain set for the TriAxis.  Your own description about the gold pin on the website is accurate.  The gold pin tubes have the same balanced response throughout the frequency bandwith, but they have richer mids and smoother to top end--can't be simpler and more accurate to describe the sound.  This is definitely not marketing talk and you really describe what you sell truthfully.  These tubes are different.


Thank you very much


-----Original Message-----From: Anthony Lin [] Sent: Monday, September 18, 2006 4:24 PM To:
Subject: wow, incredible service


I just wanted to compliment you on your excellent service. I ordered my tubes Friday afternoon, and they were waiting for me at my house when I got home from work on Monday afternoon. Truly incredible. Thanks again.

Anthony Lin

From: Chris Schwalen [] Sent: Saturday, September 16, 2006 4:26 PM To: Eurotubes
Subject: RE: Hi Bob, could you answer a few questions?

Thank you so much for all of your help.  I recieved your tubes yesterday and replaced those old stock Mesa's for the JJ's and that solved the problem right off!  The cleans sound amazing and the break up is just how I wanted.  The tubes came very well packaged and were at my house within 2 days.  When I first got the amp, (Mesa F30) I didn't think the tone could get much better, but man was I wrong.  You really are as people say, the tube guru!  Thanks for everything, I'll be sure to tell anyone else needing tubes about you :)

From: Alan Bates [] Sent: Tuesday, September 12, 2006 8:11 AM To:
Subject: Thanks Bob!

Hi Bob:
I just installed your high gain full retube kit for my Marshall JCM2000 DSL50 and wow what a difference.  I was not pleased with the sound I was getting with the stock tubes and it was really starting to bug me and affect my playing enjoyment.
Called you on Friday and I got them Monday, installed and biased them last night, your turnaround and service was great.
I'm blown away by the difference in sound quality, my DSL50 now just sings.
Alan Bates

From: Kenneth Davies [] Sent: Monday, September 11, 2006 7:04 PM To: 'Eurotubes'
Subject: RE: Tubes!

Hi Bob,
I wanted to drop you a line and let you know that I received the tubes last week, First off thanks for the fast shipping, I was surprised to see them arrive so quickly, Secondly, Thanks for the Amazing Tubes!!!!! I expected them to make a difference but I was on the floor after putting them in the Triaxis. Completely blew me away. Just wanted to let you know how pleased I am and I will be back for more when needed. I’ll be letting all my friends know about Eurotubes and the great product and service you have!
Thanks again and best regards
Ken Davies

-----Original Message-----From: Michael Black [] Sent: Saturday, September 09, 2006 4:22 AM To:
Subject: RE: Customer Order: 8024

Thank you so much, fantastic job!!!! I've gotten so compliments on my tone at shows (even though it's a jcm 2000 dsl). I recieved your tubes the day before our band had a rehearsal. I installed the tubes while everyone was setting up, let the head warm up for a couple of minutes, started playing and saw everyone's eyes just light up. Such a dramatic change in tone, great job!!!! Can't wait to get your tubes for my future jcm 800.
Take care,


From: Andy Q [] Sent: Tuesday, September 05, 2006 1:53 PM To: Eurotubes
Subject: Re: Ampeg SVT Retube Order

        Thought I'd drop you a line to let you know I received the tubes today. I put the new 6C4 in and everything is great. The microphonic pinging is no more. The amp sounds fantastic, just like an Ampeg SVT should, loud, clear and thumping lows. Just like new. Thanks again for your great products and excellent service. Those tubes got here in just days. I never thought that a retube (KT88's for power) would make that much difference and the JJ tubes are really worth the money. I will highly recommend Eurotubes to all my many musician friends around here in Halifax, Nova Scotia, Canada. Please add me to your list of happy customers.
Andy Q

From: Hans Robert L [] Sent: Wednesday, August 30, 2006 10:57 AM To:
Subject: Re: Tubes

Dear Eurotubes

Please read the following with font size 400
"Thank you for your great personal service,  your JJ tubes and your tip looking up the Rock Master pre."

I spent a couple of hours on your website after googling for information
regarding 'tube bias'. Today I'm so happy I invested time on Eurotubes
and decided to order JJ Electronics tubes.

... if my Classic Series 60/60 was 2x60 with Peavey tubes it is now more
like 2x500 watt with the JJ Electronics tubes.... - and the tone is so I want
to use them all :-)

I can now dial tones on my Rock Master that I never ever believed this
cheep pre could do. I tell you the Ultra "channel" is the sweetest thing ever.
The 'Voice' controlls now have lots and lots of more sweet hot spots
than with Peavey Super 7 tubes. And the Crunch 'channel' might
prove useful after all. I used standard ECC83S and might try to
shuffle the tubes around later on.


From: John B [] Sent: Sunday, August 27, 2006 9:28 PM To: Eurotubes
Subject: Re: 2nd question for bob

you're a frikkin' genius! Thanks for the new tubes for my DR. You sent two KT77's and two 6V6's to run in EL34 mode with two GZ34's. It is awesome! Way more focused tone. Lots of punch and no more flab.  It sounds great. Thanks man

-----Original Message-----From: CJohnson [] Sent: Saturday, August 26, 2006 7:29 AM To:
Subject: The New Tubes...

Unhappy with my tone, I was skeptical on how my Boogie F-30 could be improved; I was thinking that I made a mistake buying it, and should have gone for the expensive 'bigger' amp. The dealer told me not to use any tubes other than Mesa in the F-30, as the bias is fixed to only accommodate their tubes. Being a tube amp owner (Marshall and Boogie) for nearly 25 years, I understand just enough about tubes to know that I could try other tubes without risk to the amp, as long as the tubes were selected carefully. That's where your High Gain kit came it. Your tubes have saved my F-30 from the chopping block! This little amp is totally kick ass with your JJ tube kit installed!

You've made a customer for life. Pricing, shipping, and best of all, demonstrated expertise! I have begun to tell everyone I know about your website. Thanks again for this. You've allowed me to keep a smaller rig (getting a bad back after all these years of lugging 4x12 cabs and heads) and still get wicked tone, punch, and character. The only
question I still have is how frequently I should change out the EL84's. 
(Hi Chris, about once a year to maintain the best tone!)

I must go now to fondle my amp...thanks again.


-----Original Message-----From: L simon [] Sent: Friday, August 25, 2006 4:05 PM To:
Subject: RE: ECC83 S - 12AX7

Hey Bob,

Man i'm so happy to have decided to retube my blues deluxe reissue. When i contacted you first, it was more about tube rattles i get from the cheap sovtek that Fender insists on installing in every amp they make. Cheap bastards.

I was able to find time today to retube, (standard retube kit with double mica 6L6GC's) bias and test the results. I biased at 69 DCV, since that's at the level Hotrod's players usually bias their amp.

I was not sure if i would really be able to ear an improvement in terms of sound quality with the new tubes. Well, not only the tube rattles are gone but i immediatly noticed a huge improvement in clarity, definition and the god damn ear piercing bad highs i use to get with the Sovtek are also gone (exactly like you told me). I used to keep the treble and the presence knob fairly low bacause of it (even with a Germanium Fuzz pedal). Today i could dial in more treble and presence without destroying my ears. Overall it just sounds more focus.

Seriously Bob, thank you for a great product and a great job. You really took the time to answer all my questions and helped me figure out what was wrong with my amp. I'm going to write a review on HArmony central for my amp and i'm sure going to talk about the retubing because there is at least two guys who say they noticed the rattling and, get this, thought it was the amp's construction at fault (not a tube problem) and exchanged their amp for a new one only to discovered it also rattles like hell. So they returned the amp!

The tech were i purchased did not even tell me about the cheap tubes causing rattles and told me my amp was fine when i had it checked.

Best regards,

From: [] Sent: Thursday, August 17, 2006 5:07 AM To:
Subject: AMAZING

Hey Bob,
I received my JJ 's for my Deluxe Reverb reissue yesterday.  As always, the order was shipped with great speed and the packing was superb.
I find it amazing that JJ's can make such a significant difference in the tonal qualities of an amp.  My first experience was a few months back.  I ordered a complete re-tube for my 1965 BandMaster.  Of course, it would sound better, as my old tubes were shot.  So, I wasn't too surprised at the difference in sound.
I just bought the '65 Deluxe Reverb Reissue.  As normal, it came equipped with Fender Groove Tubes.  I immediately noticed the lack of bottom end and a real ice picky sound on the high end.  So, it's JJ's to the rescue.  I put them in last evening and just couldn't believe the difference.  The amp actually sounds as it's supposed to sound. 
I was already a believer in your product, but now I'm just totally blown away.  Great service, quality product and good price!! What more could I ask for?
Danny Reese

-----Original Message-----From: [] Sent: Wednesday, August 16, 2006 9:56 PM To:
Subject: Mark IV retube.

Hello to everyone at Eurotubes! I just recently had the pleasure of retubing my amp (Mark IV) with one of your high gain kits. While I'm sure you get emails from elated customers on a regular basis, I cannot refrain from sending along my heartfelt thanks. My amp sounds better now than it ever has. The JJ's really put the stock Mesa's to shame. I've got a feeling I'll never need to look elsewhere for tubes again. I'm so happy with the results I've gotten. The gain and distortion I'm pumping out is just unreal. My amp has come alive. Thanks so much again I'm sure I'll be back.


From: Adam H [] Sent: Saturday, August 12, 2006 6:17 PM To:
Subject: Satisfied customer

Hi Bob and Jay, just wanted to drop by and say that I am a happy repeat customer. I just got my retube kit installed for my Vox AC30CC1 and it I love it! It definitely smoothed out the tone and took away the brittleness of the cheap stock tubes. I've still got that great AC30 chime but with a fat, round mid-low end to match! I also love my Mesa Triple Rectifier retube kit. I just installed it about a month ago. I never thought of running 6V6's in a Triple Rec. And the high-gain front end and GZ34's are fantastic! I definitely have a one of a kind Mesa in my locale. People keep complimenting me on a smooth, balanced, and focused distortion but wonder why it doesn't sag and sound mushy like all the other Triple Recs. I will probably try some KT88's in the power section eventually. I bet that is a deadly combination. Thanks for being extremely helpful in all of your emails and phone conversations. Top notch customer service and fast fast fast shipping! I'm actually kind of sad I don't have anymore amps to retube using the JJ tubes. Until we meet again, keep rocking and yes TUBES ARE GOOD!


From: Tim Norton [] Sent: Wednesday, August 09, 2006 5:56 PM To: Bob
Subject: Re: Customer Order: 8579

I don't like your tubes...... I LOVE THEM!
What I now have is the best of both worlds... I now have a (what sounds like a Brand new amp, Traynor YCV20) Thanks so much...
Never in my wildest dreams did I realize what a difference your tubes would make...
Tim Norton


From: immp3 [] Sent: Tuesday, August 08, 2006 3:41 PM To: Eurotubes
Subject: All i can say is wow

Bob, I just wanted to drop you a line and say how happy I am with the JJ KT77’s and ECC83S’s that you recommended for my Mesa single Rec. The tone is so much tighter and the clean sound is REALLY warm and full. Lead work just sings like a bird. I will have Ken add you to our website when I see him this week. Thanks again MP3

From: Jonathan Gasper [] Sent: Monday, August 07, 2006 2:49 PM To:
Subject: JJ Saves the Day Again!

To Bob and Crew:
                              I just thought I'd share with you guys a little thing that happened today. I was sitting around today with little to do, so I decided to open up my bass amp and see what it looks like inside(voiding the warranty too, i imagine, but who cares?). Now this amp, a Hartke HA3500, has been extremely reliable for me in the past year that I have had it. It has never sounded bad;however, it also has never sound great. I've getting by with just ok. So, I opened up the cases, and what did I find? The one lonely tube that drives the preamp was a Sovtek 7025. Arrgh!!! No wonder it was mediocre. It never had a chance. I rummaged aound in a drawer full of misc. amp related odds and ends, and I found it. One solitary JJECC83s that was left over from the tube-swapping phase iI had with my Carvin head a few months back. I put that bad boy in, screwed the case back together, fired it up, and viola! Tone! The difference was night and day, even with the MOSFET power section. True, it will never sound as good as a vintage all-tube Ampeg, but it does sound really good! Not much of a story i suppose, but I remember you saying that you never get tired of hearing people sing the praises of JJ Electronic. They have smoked the competion yet again. More bass, more low-mid, smoother, more natural treble. Amazing!
                                                                                    Jonathan Gasper

From: John DeLorme [] Sent: Sunday, August 06, 2006 12:25 PM To:
Subject: KT77s = the missing link!

Thanks so much! I picked up my Marshall DSL 100 from you last friday. You loaded it with KT77s and even matched the grade of the E34Ls you installed for me last time. Thanks for the quick turn around too. Anyway, I was expecting a change for the better but what I heard was amazing! All the gain is still there, yet the overall clarity of every note has improved immensely. The bottom end is bigger, punchier, and no longer muddy. The mids sound killer and are much more present. Didn't notice too much of a change in the highs though I wasn't really looking for a change in that range. These are just my initial observations... I've only actually had a couple hours on them and that was with drums and bass cranked too.

Bottom line is, I've been strugling to get the sound I want and just didn't think it was possible to extract from the JCM 2000. I still don't think I'm there yet... but I'm in no hurry to off this amp now! Thanks again Bob.

John DeLorme

From: Wayne H [] Sent: Saturday, August 05, 2006 1:54 PM To:
Subject: RE: Small watts, high expectations

You wrote:

Greetings Wayne-
For how you use the amp I would go with a matched pair of the JJ EL84's that are a #32 these will still give a nice clean tone but will breakup real nice when pushed. For the front end I would go with two of the ECC83S preamp tubes. They will fatten up the tone and add a real sparkle. I would use a graded and balanced ECC83S in the phase inverter hole which is the preamp tube that's closest to the power tubes ( the one on the left when looking at the back of the amp ). This will eliminate any dead spots and really make the amp sing.

I know you’ve heard it 10,000 times by now, but you nailed this. Your description is exactly what I experienced after the retube. The amp cleaned up when it wasn’t being pushed (so much so that at first I though ‘Oh no, there goes the hot solos) but when cranked up it just screamed…I went nuts! The other guys in the band—very skeptical of Ampegs for guitar—were shocked at how good it sounded. Usually blasé, they said it was a killer now and how did I do it, etc. You definitely got the credit.

I’ve bought from you guys before and I’m knocked out both by your expertise and by your customer service. You have my business from here on in, and anyone else that asks me about the change will get an earful.

Best regards |  w


-----Original Message-----From: Roger Alan Moore [] Sent: Saturday, August 05, 2006 2:10 PM To:
Subject: Traynor amps

Hi Bob -- I read your Traynor amp page. You're right on the money about the YCV's being "fence sitter" amps. Here's a couple of things I (a happy Custom Valve 50 Blue owner) can add about them:

1) the YCV40 has a presence knob and no master volume. Most people send back the 40 because, in order to get good tone, you have to get up to 3 and 4. And, believe it or not, the 40 is extremely loud at 4. Thus the conundrum...

2) the reverb is mediocre at best, and there's no switch for it on the footpedal. If pleasant and ethereal reverb is important, a prospective YCV owner will be very disappointed.

3) the YCV50 Blue has master volume and no presence (and is VERY loud with nice gain boost), but it seems tinny and/or trebly out of the box. Retubing with JJ's solved this for me, and filled out the low end with more growl and snap. However.....

4) ...the best thing I did (after the retube) was to purchase the extension cabinet. What a difference! There's something about that 2nd Celestion Vintage 30 in a closed cab that brings the whole thing to life.

In synopis, with a retube and the extension cab, the 50 Blue is a little powerhouse that will fill a small club easily sans mic to PA. Also (and this was/is very important to me) the 50 is very quiet -- no hiss or buzz. It also responds well to pedals through the effects loop, has a great gutteral growl with gain boost (not the nu-metal tin, real JCM 800
growl) and sounds good at practice/human volume.

Your customers should consider these things before they try it out. And of course, they should always play before they pay.



From: J.C. Yoo [] Sent: Saturday, August 05, 2006 1:48 PM To:
Subject: RE: Tubes

You breathed a new life into my amp!
The complaint I had with my Carvin MTS was that it didn't sound like a tube amp.  The highs were harsh, mids were overly pronounced, and the lows were deep, but boomy.  After spending literally hours on reading reviews and descriptions of different tubes, I knew I had to try Eurotubes before buying another amp.  To model after Marshall/Laney, I ordered the el34l matched set with ecc83s.  Two days later, the tubes were inside my amp glowing.  This is exactly what I wanted.  Tight bass, glassy highs, thiiiiiiick mids and I was never able to get the in-between soft clipping sound out of my amp.  These tubes NAIL that sound, dead on.  And, distortion?  YIKES!  I mean, this is what tube distortion sounds like.  I never thought tubes could make this much difference in tone.  Thank you for saving me $1400 on a new head.  Great customer service, very fast shipping, I cannot ask for more.  Thank you for everything. 
They were right about you.
J.C. Yoo

From: Rich Kretzer [] Sent: Friday, August 04, 2006 1:46 PM To:
Subject: Re: Tubes - - -ONE SATISFIED CUSTOMER

Hi Jay,
I've been meaning to write to you guys  (has it been almost two months already?!?--- time flies when you can't take your hands off your guitar!)  to let you know how pleased I am with the retube kit I got for my Peavey Delta Blues amp.
The weird noises I got when hitting low E-string notes are GONE.   I realize, in a combo like this, (especially with that 15" speaker), it's only a matter of time with ANY tubes until they come back, but at least  I'll know how to deal with it next time, instead of waiting.  In the meantime, I'm enjoying tone that can only be described as "fabulous!!!"    EVERY guitar I own sounds great through this amp!  In the past I've used a fairly large set-up of effects, through solid-state gear, and was basically happy, but currently I just use the amp, no effects, and the only pedal I use is the footswitch to change channels on the Peavey and turn on the tremolo occasionally.  BOTH channels now sound great.
Feel free to use this for your testimonials page if you'd like; meanwhile, every other guitarist I know will hear about your tubes from me- they're that good.
Thanks again,
Rich Kretzer

-----Original Message----- From: Nik Olas []  Sent: Thursday, August 03, 2006 4:11 PM To:
Subject: RE: Tubes


I ordered LATE on Monday and by Wednesday afternoon
the new tubes were plugged in and glowing. You guys
are the best! Thanks again for your great service and
quick delivery of a fantastic product. Eurotube Family



-----Original Message----- From: Peter A Becker [] Sent: Wednesday, July 26, 2006 8:17 PM To: Eurotubes
Subject: RE: question about tubes

Hi Bob;

I just wanted to write back to let you know how wonderfully the new tubes have worked out in my Marshall TSL amp. The sound is now classic Marshall all the way, without the buzzy, harsh high end that it used to have! My dream has come true because I can now use my beloved Strat with this amp, and it sounds AMAZING! Thanks again for the new tubes, and also for all your kind help via email. Please feel free to quote this message on your website if you like. I am definitely a convert to Eurotubes!



-----Original Message----- From: Christopher Hall [] Sent: Wednesday, July 26, 2006 8:30 AM To:
Subject: thank you!!!

hi Bob - I had emailed you a couple weeks ago asking about a possible tube problem - I was running an Engl 530 thru a 5150 combo and I had a microphonic tube, feeding back like there was no tomorrow. Anyway, I ordered some of the ECC83S 12ax7 pre's and 6L6GC 5881 power's. I slapped'em in last night and it was just the solution, the difference is amazing!!! just wanted to say thanks for helping me out and thanks for getting them out to me so quickly. Definitely gonna buy tubes from you guys probably
forever!!!! You guys rock.


-----Original Message-----From: Kiser, Billy [] Sent: Monday, July 24, 2006 6:35 AM To:
Subject: Fender Blues Deluxe Reissue

Jay & Bob,

Well, I got the tubes last week and had our local shop install them for me this past weekend. I can't believe how good my Blues Deluxe reissue sounds now. I did the complete re-tube with JJ 6L6GC'S as well as the JJ ECC83's which you guys recommended. I also had the bias re-set. I am extremely happy with the new sound. Thank you guys for all of your help. I'll have to say, you guys have fantastic customer service. You now have another customer for life.

Best Regards,
Billy Kiser

From: Reichard, Rick J CTR CNRSE N43 [] Sent: Friday, July 21, 2006 11:45 AM To:
Subject: Peavey Retube Kit Triumph

Bob:    I just wanted to pass on to you my thanks for the retube suggestion for my peavey triumphs,   I have 2 of them and the tube set you suggested gave me breakup at lower volume and allows me to have the harmonics without ears bleeding, I also retubed an old peavey heritage and the 6L6 euro's were much better than the stock peavey's, I tell everyone that is looking for "the sound" to contact you and let you tell them what they need. Neither one of these triumph's ever sounded this good with the stock tubes.
thanks   Rick Rocker

From: Woodman, Clive E. [] Sent: Tuesday, July 18, 2006 10:34 PM To:
Subject: RE: Retubing Laney LC30 MK1 Amp

Hi Bob,
I just wanted to let you know that I received my tubes over here in Perth, Western Australia the other day. 6 days after they were shipped, a distance of 11,000 miles - terriffic. The amp's sound has certainly improved, before it had a 'still in the box' sound, now it's a lot more open and clear. The drive channel is now a lot more useable too, with tone controls actually doing something to the tone. Thanks for your assistance and help in selecting the right grade of tubes for this amp, it really has made a great difference for not a lot of cost.
I will be recommending JJ tubes to others from now on!
Clive Woodman

From: willie penalosa [] Sent: Monday, July 17, 2006 9:12 PM To: 'Eurotubes'
Subject: RE: Mesa Boogie F50 (Re-Tubing to JJ Tubes) Testimonials

Hi Bob,

First of all, let me thank you for your suggestion to replace the mesa boogie tubes and re-tube it with JJ tubes. The set of tubes (three standard ECC83S's with a current balanced ECC83S in V4 for the phase inverter & a matched pair of the JJ 6L6GC's) arrived 2 days after I ordered it. I was very impressed with a quick delivery. Well, it took me 15 minutes to install the first tube because that was the first time I did it myself. The rests were straight forward. Gig time!!!! It blew me away! It is so sweet sounding amp now. I thought that I had a good sounding amp even though the original tubes were only 5 months old. Well, the members of the band noticed a big difference in sound. The sound is more dynamic, bigger sound or maybe the right word is much thicker sound and very clean. The tone is much more defined specifically on the lower strings. For the price I paid, I’m extremely satisfied. Oh! And yes, the overdrive is simply awesome.

I would highly recommend this company to anyone who wants to improve their tube amp significantly. Once again thank you so much for your advice.

Willie Penalosa
(Lead Guitarist of the Bits & Pieces band)
PS, by all means you can add this testimonial to your existing file of hundreds or maybe thousands of satisfied customers.

From: Ed Ulrich [] Sent: Monday, July 17, 2006 1:22 PMTo:
Subject: RE: Tubes

I just wanted to let you know that the amp sounds fantastic. My band played a gig on Friday night and we got quite a few complements from our “groupies” that it was the best they ever heard us sound. I’ve since nicknamed my Peavey (Classis 50) “Krispy Kreme” because of the tight, focused, buttery-smooth overdrive the JJs are giving me. I’ve been pulling my hair out for the longest time trying to find a sound that I was satisfied with. Over the past few years I’ve owned all-tube combos from Fender and Marshall, as well as two Mesa Boogies, but they were all kind of harsh sounding and eventually found new homes. I bought the Peavey used about 12 years ago, and always kept it around because I picked it up so cheap. I was at the point I was either going to pop the pin on a set of NOS tubes (a lot more money than the amp cost) or perhaps a used Matchless or Bad Cat, and am I ever glad I tried the JJs first. I know I sound like I’m gushing, but these tubes have totally transformed the amp into a tone monster. The best $67.50 I ever spent. Thanks also for all your prompt correspondence. You have a customer for life.

From: Kirk Whitaker [] Sent: Sunday, July 09, 2006 12:34 PM To:
Subject: yeah buddy.....that's what i am talking about

hey bob,
Kirk here from down in bainbridge ga. You sent me some tubes last month...some ecc83s...2 regular and 1 balanced...and 1 ecc832...I was looking to improve my Fender HRDLX...since the sovetecs that came in it were sounding soooo dark. I replaced them first with the ecc83s...which did liven up the clean channel wonderfully...but the drive was still rather dark and highs...but today I finally got around to putting the ecc832 into the V2...HOLY SMOKES!!...this thing sounds like a vintage fender now...the drive is nice and crunchy...the more drive is much smoother....wonderful tone with much more definition...more highs and character...You did the trick...THANK YOU BOB!!  (If you have a HRDLX...get a ECC832 and try it in V2....less gain and tone to spare!)
Kirk Whitaker

From: Larry Vigneault [] Sent: Friday, July 07, 2006 4:28 AM To:
Subject: Comments ...

I just retubed my Trace Elliot Bonneville C50 with a set of Eurotubes, and I just wanted to say that it sounds the best it's ever sounded in the 10 years I've owned the amp.  It has a nice chimey Fenderish quality with a lot of punch now.  Highs are smooth and pleasant without being grating, and the lows are punchy and nicely defined.
Everybody in my band agreed that it sounded outstanding at rehearsal last night.  Thanks for making such great sounding tubes available, I won't use any other brand as I've found tube nirvana. 
 Cheers, Larry

-----Original Message----- From: Daniel Maage []  Sent: Thursday, July 06, 2006 1:58 PM  To:
Subject: Thank you very much.

I got the Tubes yesterday, I mounted them today. Nice instructions on the ballanced tube, good packaging they all got here in  perfect state.

This is the first time I`ve changed tubes, but it went quite smoothly.

NOW the most important part; How did it sound???

Only one word escapes my mouth; Perfect, My Mesa Nomad sounded better than ever before.

The distrotion is somehow way more creamier than before, and the top end sounds way more Ritchie Blackmore,,,hehe.

Truly amazing tubes as well as your service.

Thank you again.

Ps I work in a musicans store myself, and I hope to send a lot of buisness your way.

Keep up the exelent work

Take care, regards from Daniel Maage


From: David D [] Sent: Monday, July 03, 2006 6:41 PM To:
Subject: retube Crate V16 complete

Got my tubes today for my Crate V16. Quick service...took a weekend! The JJ's are really great tubes. The tone is greatly improved, a lot less hiss, clearer tone, and more harmonic response. The reverb is completely different, much more lush and 3 dimensional (did not expect that result). I cannot believe that amp manufacturers use such junk for save 20 bucks an amp.
My amp sounded good before, now it sounds truly great. Thanks for your consult and the tubes. I'll contact you when it's time to retube my Mesa and Fenders!
DD (Tucson)

-----Original Message-----From: Powers Court [] Sent: Monday, July 03, 2006 7:41 AM To: Bob
Subject: Re: Customer Order: 7452

Greetings Bob,

I just wanted to drop a note to you when I had a chance, Danie is completely "JJ'd" out now & it really sounds awesome! She purchased 2 Mesa standard rectifier cabinets at the same time I put the preamp tubes in the 2101. We have done a few shows since then & I can't believe the reactions she gets... (apart from being a great guitarist) other guitar players & people from the crowd will,without exaggeration, bow at her feet
when she comes off stage!(really)

Soundmen & the other guitarists in the building, who pay little attention when were setting up, at the end of the night HAVE to ask "what in thee hell are you using and what is in it". It blows my mind! So, I think you will be getting alot of Marshall & Mesa tube orders!

It seems to be the the magic combo & I know that the tubes are a big part of it, thank you so much!!!!


Steve & Danie
USA Dark Power Metal Band
Dragonheart Records


-----Original Message-----From: Mike Brunner [] Sent: Sunday, July 02, 2006 10:36 PM To: Eurotubes
Subject: kudos to Bob and Eurotubes.

Hi Bob.

I recently placed 2 different orders with you for the retubing of a Dual Rectifier. The second order was so I could try some additional options in comparison to the original set. I have to tell you, the original set you recommended to me is the winner! Thanks so much. I asked for your advice in getting the most musical response out of the Dual Rec. and you suggested a pair of the KT77's and a pair of the 6V6's along with a set of GZ34's and an ECC803S in v1, a standard ECC83S in v2, v3, and v4 and a balanced ECC83S
in v5.

Thanks again. I will be back for more!

All the best.

Mike Brunner

From: Mark & Carol [] Sent: Saturday, July 01, 2006 2:00 PM To:
Subject: Re: I want tubes

Hello Jay and all

Well I just put in the tubes you sent me for my Blues Deluxe. I was hoping by replacing the factory groove tubes Id see a little improvement, but I was apparently wrong. This is now a completely new AMPH!!!! If fact it is now a Blooze DeeLuxx!!! Damn what a difference I don’t know if I maybe had a weak original set or if your tubes are that much better. Either way the only way to describe it is its just all around warmer with a real fullness in all the tones and very responsive to my picking. I really am amazed because I wasn’t expecting a night and day difference, an improvement yes but not as drastic as what I’m hearing right now.  Also your help and quick replies plus fast arsed shipping make doing biz with you guys a pleasure. Well thanks again especially Jay for the advice Ill only be getting tubes from you guys from now on and Ill be spreading the word on what a class act you guys are! See ya next tube change!

Thank you very much

From: Austin [] Sent: Thursday, June 29, 2006 2:32 PM To:
Subject: Re: Tubes

Hey this is Austin with the B-52 AT100.  Thank you so much for those tubes. My amp has made a 200% improvement.  I honestly can not thank you enough for your help with everything.  I will most definitely continue buying from Eurotubes in the future.  Thank you so much.

-----Original Message-----From: Chris & Dianna L [] Sent: Tuesday, June 27, 2006 8:48 AM To:
Subject: electric violin vs. 5150


I have a 5150 integrated quad setup w/ bias adjustment and I met a violinist who was looking for amp that didn't sound "thin" or too trebbly. She played through my 5150 and I need to tell you - it was very impressive. The amp used to sound muddy and unbalanced during low/high note trasitions but, with your recommendations for mods, this amp truly performed. On other amps,the highs of the violin sounded squeely and schreechy with no bottom end punch. Everything sounded very smooth and solid on the 5150.

Thankyou again for you recommendations - I never knew my amp was capable of this tone.

Chris L

From: Paul LaParle [] Sent: Saturday, June 24, 2006 9:01 AM To:
Subject: KUDOS once again...
Importance: High

Hey Bob,
Just a quick note of THANKS!~ As w/ my Blues Jr, my Valve Jr is now "rippin blues machine"!!!!  I hooked up w/ Ted Weber and replaced the speaker w/ one of his Ceramic Signature Series 8S's.  That along w/ the JJ Tubes has turned my Valve Jr into a little 5Watt Class A MONSTER!!!~~~
Having folks like Ted and yourself to call on are a god-send for "gear whores" like myself!!!  It never fails at a gig to have a musician come up to me at break and ask the effect of..."what the hell do you have in that thing?"
My next project is my Crate Vintage Club 50Watt Combo,  I will be in touch for that one in the near future!
KUDOS to you and your folks at EUROTUBES!!!~~
Gr8ly appreciated!
Thanks again!
Paul "Pablo" LaParle

From: Jill G [] Sent: Friday, June 16, 2006 1:06 AM To:

THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

From: Barry Day [] Sent: Saturday, June 10, 2006 6:27 PM To:
Subject: Personal gratitude to EuroTubes - especially Bob

Bob and the EuroTubes staff:
I bought the High Gain set of tubes for my Mesa Boogie IIb about two weeks ago and will try to describe the dramatic transformation in my old Boogie standby!  The original power tubes and replacement pre-amp Groove Tubes and Mesa brands that I have been periodically changing are now in the trash where they belong.  I knew that JJ's were good, but was not expecting the over the top metamorphisis that they have produced in my amp.
The juicy tone is BACK!  It sings powerfully on it's own or with it set clean to warm up the tone using my modeler on the front. WOW!   Yes, you were correct, the High Gain set still gets nice and clean.
I had my doubts on the "fixed bias" using anything but Mesa tubes (Mesa hype), but everything is sounding 500% better.  Guess the Mesa guys just want to sell their tubes.  You "hit the note" with your custom tube selection for my Mark IIB and my amp has NEVER sounded better.  Even sounds better than when it was brand new from the factory and that is a FACT.
The flexibility and overall tonal musical personality just flips me out.  No more brittle/thin treble.  No more "mud drenched" bass.  No more "weak/flat/lifeless" tone. All sounds are full of great big FAT tone and clarity throughout the treble/mid/bass ranges.  The tone controls now really work. I am amazed each time I fire it up.
You were again correct on the "breaking in" of the tubes.  After a few days of burn in they really sweeten up and sound better than on the initial install.
You can be assured that I will recommend EuroTubes to all of my friends in Pflugerville and Austin that are in need of new tubes.  "Forget buying tubes at the music stores and just contact Bob at EuroTubes" will be my catch phrase to all of them.
My appreciation and sincere gratitude to you and all the staff at EuroTubes!
-- You have my permission to post this email on the Customer Review section of your website if you desire --
Barry Day

-----Original Message-----From: Chris Hale [] Sent: Friday, June 09, 2006 10:24 PM To: Bob
Subject: Peavey JSX


I can't thank you enough for the wonderful tubes. I recently bought a Peavey JSX which came with stock EL34 EH power tubes. I sold my Peavey 5150 to buy it, and after a few days of tweaking settings, I began to miss the heaviness of my old 5150. The EL34's had a great crunch sound to them (but perhaps a little brittle and way too much on the bright
side) and the lead sound was very fluid, but lacked the low end thump that I loved so much in my 5150. I decided to give the 6L6's a try and ordered a matched quad. I recieved the tubes only 2 days after ordering them and popped them in, switched the bias setting to 6L6 and flipped on the power. The only word to describe the sound is HUGE. The annoying high end of the amp was gone and replaced with a powerful low end chunk that kicked me in the chest as soon as I hit a palm mute. The cleans were even better than before and felt so much more warmer. The JJ's breathed new life into my JSX and my sorrows of selling my beloved 5150 vanished. This is the tone that I've been hearing in my head since I've picked up the guitar. Bear in mind that the preamp tubes are still the stock EH's. I can't imagine how the tone can get any better, but once I order me a set of JJ preamp tubes, I believe it will be total bliss.

Christopher Hale

From: john [] Sent: Friday, June 09, 2006 7:49 AM To:
Subject: Re: Tubes

Just installed the tubes on my DSL, full retube.. 
a brief history on this my DSL.. its only 9 months old and has probably be bought and sold 2 or 3 times
simply because its distortion sounded bad.. The gain control on the red channel didn't make much difference after 3 on the knob, it just got more grainy and buzzy, very unmusical distortion. The clean channel was still ok and I use a modeling processor so I got away with it.
after the retube,,,holy cow,,,A real marshall. The red channel can be used all the way to 10. This is insane distortion but still very musical. Its very funny, now whether Im using the modeling processor or running clean or using the red channels insane distortion, I can hear the marshall signature all thru it. before it was just washed out in mud.
The biggest difference is in how clear the notes ring out. I can clearly hear notes under other notes, kind of like a BBE unit, If your a lousy player, these tubes will project that. you can hear everything coming off the fret board.
I don't understand why marshall is not hip to this. the DSL and TSL line of amps have a bad reputation for poor sound, simply, in my opinion, because of the lousy tubes their installing. The JJ s make this amp.  I've used them all, Plexi s JMP s  800 s  etc,,,this amp NOW can run with them. As for the oldschool vs newschool guys out there, I will bet if you stuck my stock tube set into your plexi, it would also sound bad....
one last thing, If the guy who sold me this amp were to here it now, he would be very upset with himself, nuf said..

From: Richard W [] Sent: Tuesday, June 06, 2006 6:32 AM To:
Subject: RE: Tubes

Got the tubes, put them in, and … Holy Crap! I mean I thought this was a great amp before. It is just beyond what I imagined now. I certainly expected an improvement from the tubes, but I had no idea what dramatic difference it would make.
I’ve made some relatively minor mods to the valve junior combo. Added a standby switch and added an 8 ohm output to drive various cabinets I already had around. I have also used some nice pedals in front of this, which all sound great, but nothing I have done so far had such an improvement as the tube upgrade. And the real kicker is, it was only $18 bucks. This is now my favorite amp to play.
You guys should advertise a kit for these on your site. Anyhow, well done and thank you, thank you!!!!
I will sing your praises on my harmony central review.

From: Tim Cronin [] Sent: Tuesday, June 06, 2006 12:57 AM To: Eurotubes
Subject: New testimonial

Hello, Bob.
I wanted to give you my testimonial, as I am still floored by the sound I am getting out of just one tube.
A while back, I asked you what 12AX7 would be a good fit for a Marshall AVT20, considering my playing style (blues/rock/hard rock).  I recently ordered and recieved what you recommended me: a matched triode ECC83S w/ 105-110 gain.  The tube I was swapping out was one of those new Groove Tubes 12AX7Ms that are supposedly modeled after the old Mullards.
I have tried a total of three tubes in this amp: an Electro-Harmonix, which I found to be rather shallow and harsh sounding, the Groove Tubes one, which was richer, but still sounded a bit splatty gain-wise, and this JJ tube.  It's amazing the difference I heard.  On the clean channel, it's rounder and smoother, and with the gain maxed out on the channel, the breakup is very juicy and full of life.  On the overdrive channel, the distortion is less harsh and much sweeter.  With the gain maxed out on that channel, it still exhibits some harshness (I will probably invest in a Weber Beam-Blocker), but not as much as with the EH or GT tubes.
I wish to thank you again for your superior customer service, and thanks for an excellent product.  I'm officially a JJ convert.

-----Original Message----- From: []  Sent: Monday, June 05, 2006 1:00 PM To:
Subject: Tubes Installed

Just wanted to let you know that tubes arrived in good time (the 3rd) and well packaged. I installed them and was very pleased with the difference they made in my Peavey Classic 50 410. The clean side (which was nice and rich before) is richer. The gain side. . . much, much better. . a whole range of textures to play with. With the neck pickup, it used to sound a little frappy, like a kazoo in the upper register (the lower end stayed nice and edgy), now the tonal texture is much more even across the octaves.

I appreciate your willingness to advise on the various grades of tubes and their sound qualities by your experience.

Thanks for the great service.

-----Original Message-----From: Simon P [] Sent: Wednesday, May 31, 2006 5:01 PM To:

Hi Bob,
I just recieved my JJ tubes and couldn't wait to have them installed in my VOX AC30CC2. The result is WOW!!!! The difference in tone is unbelievable, even more than in my 5150II or JCM800. The amp now sounds great and the TB channel (which I used to dislike) is giving me that nice crunchy tone I thought I would never get with this amp. And the normal is now cleaner and fuller with better definition as well as better low-end (something impossible with factory-installed tubes) Also, the tone on either channel is now tighter so that palm-muted notes or snapped chords are "chunky" instead of "muddy." Overall, an 11/10 mark for Eurotubes and JJ tubes (once again)!!! I can't wait to buy another amp so I have to change the tubes in it!!! :)

Thank you very much once more,

From: [] Sent: Saturday, May 27, 2006 4:28 PM To:
Subject: Re: Tubes for a Fender Blues Jr. amp

Hello Jay and Bob,
Thank you for the quick delivery, I received the Fender Blues Jr. eurotubes today and I installed them into the amp (Now New Amp). I am very pleased with the new sound. I thank you both for your recommendations for the tubes that you thought that I would need based on my style of playing. Again, I am very pleased, this was the first time that I ever took on a project like this on my own. I thank both of you for making it a success. You can add me to you HAPPY CUSTOMER LIST. May God bless both of you always.
a servant of the Most High!
Gospel Bill

-----Original Message-----From: [] Sent: Thursday, May 25, 2006 1:25 PM
Subject: Thanks!


Here's another "I couldn't believe it story". I ordered the tubes on Monday and received them on Wednesday. Installed them in the Music Man RD50 and WOW! The tone is incredible. Took it out on the deck and played for 2 hrs (forgot to mow the lawn). Thanks again for a great product and excellent service.


From: Judson Bertoch [] Sent: Thursday, May 25, 2006 1:25 PM To: Eurotubes
Subject: Now We're Talking!

Hey Bob,
First. Under 48 hours from order to delivery (OR to VA) - almost unbelievable.   Who do you know at the USPS and what do you have on them?...
Second, not sure whether to nickname you the "amp whisperer" or "the cleaner".  Either way your solutions fix tone.
I'm probably more of a sound/tone novice than 95% of your other customers so I was not sure just what to expect in terms of change/improvement.   Now, needless to say, I'm very very pleased going from harsh/cold/distant sound to warm/tight/rich.
The sound difference is so pronounced and the sustain is so amazing.  I ordered both the standard and low gain retube sets (Fender Pro Jr) not sure which I'd prefer, but I put the low gain set in first - it may never leave this amp.
The amp companies should be paying you for retaining their customers.  Normally other products in life that performed so poorly out of the box would normally go on my 'do not buy from again' list. 
Judson Bertoch

-----Original Message-----From: Matthew D'Ortona [] Sent: Tuesday, May 23, 2006 6:21 PM To:
Subject: Mega Pleased with the Traynor YCV-40 High Gain Kit!!

Dear Bob & Jay,

I just wanted to let you guys know how happy I am with the Traynor YCV40 high gain kit! The cleans sparkle and have much more of punch, with some
nice, smooth, natural compression thrown in to boot. The overdrive channel just smokes, with more definition, clarity, and gradations of
distortion. To put it mildly, this is the best $69 bucks I've spent in a long time!! No more fence-sitting - this amp is a keeper now. Can't wait
to use it on this week-end's gigs. Feel free to include me in your customer review section. You guys rock!


Matt D'Ortona

From: Scheuer, Rick [] Sent: Friday, May 19, 2006 8:33 AM To:
Subject: Thank you!

Boy, what a difference.  A great transaction, the ECC83s (2) are breaking in nicely in my little Jolida 1701 hybrid.  CD (Cambridge Audio 640C)  has lost its 'edginess' on female vocals and strings fill the room, while Coltrane's sax sounds round and full and breathy.  Monk hums along, his fingernails clicking on the keys, toe tapping.
Lucious mids!  My Epos M12.2 speakers crave good mid energy, and man, they have it now. Full of inner detail.
The only person who probably doesn't like you right now is my landlord.  He lives upstairs.
Most of all, my vinyl collection thanks you. I've got records going back 35 years; I still use my AR Xa (1971) with the modified Grace 707mkII tonearm (1978?) and a Goldring 1042 cartridge.  A very modest, but incredibly musical setup.
You guys really, really upped the quality of this rig - for about the price of a pizza and a pitcher of beer.
Thank you, thank you thank you (and peace),
Rick Scheuer

From: Ross Drake [] Sent: Thursday, May 18, 2006 12:09 PM To: Eurotubes
Subject: Change in the small YCV20 Traynor


Skeptical readers will now no doubt think that I am a ‘shill’ for Bob Pletka and his JJ Euro Tubes.

I am the same fellow who owns a Peavey Classic 30 that with Bob’s help we turned it into one of the sweetest sounding amps I have heard irrespective of cost.

I mentioned in first testimonial that I had just purchased the small 15 watt Traynor YCV 20 in wine.

This amp has received mixed reviews for its sound with the stock tubes (Sovteks which I have to say suck!). In addition, I would generally agree that the sound was not great, nor was it as poor as one writer mentioned. He said he couldn’t be bothered to change the tubes so he took it back. Too bad.

Changing the tubes in this amp is a major pain, no doubt about it. They did not design it to make it easy to change the tubes but if you spend the 1 1/2 hours required (so you don’t break something) and put in JJ tubes the result is well worth it.

With the same quick dispatch I got the tube configuration sorted out with Bob, who is meticulous about responding to emails, even on days I consider as ‘days off’ and 5, yes 5, count em, days later, I had the tubes and today I made the switch.

This little amp provided me with exactly the sound I was looking for out of it and I think all that it could give me. It sang, chimed, and had a tight but still somewhat weak bottom end (to be expected in a small amp in a small enclosure).

But then the surprise! I hooked up my Fender Telecaster on the drive channel and dialed in a ‘sound’ I have only heard a few times in my long life. It just wails and beautifully so. I dialed in a sound on the drive channel that was not possible with the original tubes.

If you are vacillating about buying this particular Traynor or about Bob and Eurotubes and your skepticism is crumbling, do yourself and your amp (and maybe your dog too) a favour and retube it with JJ Tubes from Bob.

Honest to God, this can’t be ‘snake oil’ we are talking about here. This is the real thing and I recommend to anyone to jump on it.

Ross Drake in Ontario Canada (a.k.a. The Great White North)


From: Andrew K [] Sent: Wednesday, May 17, 2006 2:30 PM To:
Subject: Re: Tubes

I love Eurotubes!

I got my tubes today and slapped them into the Boogie (the DC-5) and oh lordy! I couldn't stop playing! The drive channel has taken on a whole new dimension and even with the gain dimed the notes are still articulate. The clean channel is fatter and more round, its just heavenly. And in general both channels have cleaned up so much. I did not expect this much of an improvement from swapping tubes alone.

Thank you Jay and Bob (snoochie boochies?).

Until next time,

From: John W. []  Sent: Sunday, May 14, 2006 2:57 PM To: Eurotubes
Subject: Follow up & impressions on my new JJ Tubes

Hi Bob, thanks again for the personal attention to my order.  While I hope your business grows fast as it deserves to, (and I have also been recomending you to every guitar player/tube user I know), I hope you can always have enough time for all your customer's questions.  It really sets you apart from the crowd.  As do your tubes.  Very very nice.  Everything you say they are is on the money.  They made an incredible difference in my Peavey Classic 30, and my Classic 50 as well.  The C30 is suddenly a very respectable amp in it's own right, not just good for recording and practicing.  It's almost like I added a second channel to it, because it has a full range of exciting tones available to it now.  I really can't describe what an improvement it has made.  To anyone considering these tubes for the first time, just do it.  They are not expensive and they sound rich and transparent, have so much harmonic content, and are so linear and smooth in breakup that you really can't go wrong.  My C50 is a much more complicated amp, and so much louder that I don't get to play with it as much.  As a result I am still in the process of discovering the full character of the new tubes.  I will say this though, they are unmistakeably higher quality than the EH tubes that were in there.  It's like getting into a luxury car blindfolded.  An economy car may have a lot of decent features, which seem similar, but there is a completely different feel to it.  Even my friend who has only the most cursory experience in "tone hunting" said immediately that my amp sounded better.  And he now has a JJ tube in his Marshall Valvestate head, which has made a WORLD of difference in his tone.  Now if I can just talk him into going all tube ... =)
Thanks again,
John W.
Van Nuys, CA

From: Ross Drake [] Sent: Thursday, May 11, 2006 2:48 PM To: Eurotubes
Subject: Re: Tubes


I found out about Bob and Eurotubes from the guitar tech at my music store in town, and then subsequently read about him on many amplifier sites on the web.

I own a Peavey Classic 30 an amp that I like, but it wasn’t quite doing exactly what I wanted it to do. I was lost! How do I explain this somebody who will, first understand, and second, know what to do about it?

So I was hesitant but I asked my guitar tech and he suggested I contact Bob at Eurotubes. And so I did, not knowing exactly what to expect.

I am completely delighted and satisfied with the entire experience. Bob takes a hands on personal approach and I sent him an email detailing what I thought was missing in the amp.

Bob made suggestions in an incredibly timely manner, within an hour or so of my emailing and I ordered the kit on-line a few minutes later.

7 short days later the tubes arrived. I installed them as my situation was plug and play.

Every shortcoming this amp had was corrected and I think, frankly, it sounds for my purposes at least as good as any amp I have heard for twice or three times the money.

The amp provided me with exactly the sound I was looking for. It sang, chimed, had a tight and pronounced bottom end, it was a work of art. All for about $60 versus the cost of a new amp.

I am so happy that I just bought another tube kit for my new Traynor.

If you want to improve the sound of your amp this is the place and the fellow to connect with. You will not be sorry. Indeed you will be delighted, as was I. This is not hype. I wasn’t paid to say this. I am doing so because this is the real deal for tube amplifiers and the service is beyond comparison. It is personal and it is right.

Do yourself a favour and try Bob at Eurotubes. I am not going to tell the story of Bob and Eurotubes, it is everywhere on the Web for people to read. This is my personal story.

Ross Drake in Ontario Canada (a.k.a. The Great White North)

From: [] Sent: Wednesday, May 10, 2006 3:33 PM To:
Subject: Happy customer

hello Bob or Jay or who ever opens this
I will most certainly be returning to purchase any tubes i require in the future due to the tone and quality of these tubes are absolutely spectacular in my Rockmaster Preamp the bass is full an not overpowering with the sovteks it was either to thin or to flabby now the low end is nice and tight with the mids dialed in which took the longest it absolutely kills the sovteks and the highs although i like a slicing somewhat piercing tone to my mids and treble it does all that with aplomb yet it not piercing enough to make a dog whimper, the sovteks i was using actually made my dog whimper. The shipping was quick and speedy i was also surprised at the size of the box i figured it would be much smaller.
Chris Rose


From: Wylder mail [] Sent: Friday, May 05, 2006 8:21 AM To: Eurotubes
Subject: kt77 tubes

     It's Mike Frank from Albany NY I bought a quad of Kt77 tubes from you a while back for my Mesa lone Star, I hope all is well. Just wanted to tell you these tubes are the best I have tried yet. They give the best of both worlds excellent clean and dirty. I am giving you a link to my band's website and there are several video clips with various types of music so your customers can hear how great these sound. From sparkling clean to fat blues rythm to hard rock and a nice fat lead tone these do it all with style!! Thanks again Bob you are the man. Click here and go to mp3s and video page and click on the video clips (studio demos do not have the kt77s) this was taped straight through a panasonic camera. Enjoy and thanks again

From: Brian Powell [] Sent: Thursday, May 04, 2006 10:00 PM To:
Subject: Marshall JCM 900 50 watt head (re-tube)

Hello Bob,
Thank you for the great service and in helping me to discover an excellent tonal possibility available to my 50 watt JCM 900. I have broken in my JJ KT-77’s and am very impressed with the improvement in tonal quality and additional head room after switching from E34L Tesla’s, and from 12AX7A’s to JJ ECC 83 S’s. It’s like I have a new amp. Amazing! The tone knobs are much more responsive. The presence control knob had no effect before re-tubing. Now the presence knob produces noticeable changes to the sound. The KT-77’s produce a WOW tone that gives me a smile every time I play. What a treat.


From: doren [] Sent: Thursday, May 04, 2006 6:56 PM To:
Subject: Re: Tubes

I'm slack-lawed and speechless....
My tripple xxx went from "not bad" to BAD ASS!...
not sure what to say, but thank you!


From: Bob Kimball [] Sent: Tuesday, May 02, 2006 5:40 PM To:
Subject: Re: Tubes

Hi Jay,
I've had enough time to let the tubes settle in a bit.  I'm using a pair of the JJ KT77 in a Rivera M60 head (60W), replacing whatever the stock EL34s were.   The KT77s do everything better than the stock tubes.  They have a little more chime/sparkle when driven clean, a nice round and not-flabbly bottom end.  They get nicely gnarly when overdriven, real BALLZ!   The Rivera can run the output tubes either pentode or triode.  The triode setting with the stock tubes was a yawner.  It's really nice with the KT77s... articulate and with a touch of reverb, haunting.   It's hard to characterize them, they are kind of a cross between the signatures of an EL34 and a good 6L6.   They are a welcome addition!  Thanks, Bob

From: Marius Amundsen [] Sent: Monday, May 01, 2006 1:43 AM To: Eurotubes
Subject: Ah! the SWEET tubes!!!

Just wanted to send a HUGE thanks to you Bob!! My Trem-O-Verb sounds so much better now!!
The tone is so warm, yet clear and well defined and full of life! The tone controls works alot better, and its alot easier to hear the differences when turning the knobs.
The mush is also gone. Even with gain set high every single note ring when playing chords and everything is more well-defined and tight. The crunch is much cleaner in a sort of way than before.
The harshness is also gone. The amp has a warmer and richer sound with lots of harmonics. I can now set the treble and prescense to positions that I never did before because the amp would sound terrible. Now its easy to make the amp cut through.
Have been playing mostly with the 6V6's. They sound amazing! You were right about the clean tone. It has NEVER been this good! Warm and SWEET!
The 6V6's are great for soloing too!! Really sweet when digging in!!
The E34L's left me with a huge smile on my face for tight, crunchy comps. No more "fluff--fluff"... just tight, burning "chugg-chugg"!! And all the warm rich upper harmonics on powerchords! My amp is on FIRE!!
This has been a most pleasant experience and the best investment in tone! Couldnt ask for more!
Why have a racecar if you are driving with flat tires?! If you have a great amp, you need great tubes!
I will spread the word, and I now know who to contact when its time for re-tubing! :D
Thanks a lot!!


-----Original Message-----From: john novack [] Sent: Wednesday, April 26, 2006 9:37 PM To: Eurotubes
Subject: RE: mesa lonestar

hey bob, the lonestar sounds GREAT with the setup you recommended, whole different amp. tons of depth and dynamics, the mud is gone, and no trace of harshness.
exactly what i was hoping to achieve. the gain side is smooth as silk, the harmonics are aligned, and sweet, before, the gained up sound was jumbled, confused and
kind of "trashy". i'll be back!

-----Original Message-----From: Mike Argento [] Sent: Tuesday, April 25, 2006 11:49 AM To:
Subject: 6v6s in Ampeg Reverberocket

Got the tubes Monday, had them put in and biased (about 20mA at 390 plate volts, according to the tech) and whoa! This is how this amp's supposed to sound! Just amazing sounding. Great lows and sweet, sweet highs. Crank up the amp and it breaks up smoothly.
I'm more than pleased. Thanks for your help and excellent service and the tubes. Pass on my thanks to the folks at JJ; they make kick-ass tubes.
Mike Argento

-----Original Message-----From: Steven Custer [] Sent: Monday, April 24, 2006 7:15 AM To:
Subject: jj gz34's

Hi! I bought a set of jj GZ34's from you last week, and I wanted to drop you a line and let you know that I was really impressed with your service. The tubes arrives lightening quick, and they were packaged excellent! Also I really wanted to let you know that I got to play nice and loud with them in my amp yesterday, and holy sxxx!!!!! I can't believe how good these things make the dual rec sound! Thanks a bunch! --Steev Custer

From: KEITH JOHNSON [] Sent: Friday, April 21, 2006 6:14 AM To: Eurotubes
Subject: more tubes

Hi Bob.
I got a 5150 low gain retube kit from you about 2 weeks ago.
These things are awesome!!! They took care of all the noise and hissing that I was getting from the factory tubes. The tone controls are much more useable now, and I still have all the gain I need. The personality of each guitar really comes through uncolored. Everything sounds sooo much sweeter!
Thanks so much! Go ahead and post this on your reviews.


From: [] Sent: Thursday, April 20, 2006 3:08 PM To:
Subject: RE: Tubes

Dear Carla and Eurotubes,
Thank you so much for your great product and service. The tubes I ordered on Monday evening arrived yesterday morning. I installed them and biased the amp this morning. After an initial problem with low volume (phase inverter needed to be reseated) I picked up my strat and started to play. The old tubes were definitely going bad, but even given that the sound from the JJ’s you guys sent is great. The clean channel is clear, ringing, and bright. String attack sounds out well and pinch harmonics are easy to get (they never used to be).  Bang the strings hard and all sorts of cool things happen as the amp nears but doesn’t quite reach break up (about 4 on the Hot Rod). The dirty channel sounds good also with some of the Hot Rods built in fizziness dissipated. At low volume the drive channel is actually quite playable and surprisingly musical. Cool.
I was going to sell this amp, but not now. It is too much fun to play!
Thanks for a great product and great service. You will be getting all of my future tube business and that of my friends as well.
Best Regards,
Doug Wille

-----Original Message-----From: Samuel Anderson [] Sent: Tuesday, April 18, 2006 11:21 PM To:
Subject: Thanks for hooking up my Traynor YCV40WR - I'm keeping it :-)

Sounds great man!

I talked to you on the phone last week and wanted to let you know that you did an outstanding job translating my confusing "I don't know what I really want but I sorta like this and this" jabbering into a perfect set of tubes for this amp. Hell I was so lost I don't even remember what I said.

You were exactly right in saying that most of they guys that call you with my amp are "fence-sitters" and (80%?) keep the amp after switching the tubes. I can't believe how much more musical this thing is; the brittle piercing sound is gone, replaced by a sweet singing treble's amazing!

Anyhow just wanted to let you know I'm keeping my Traynor YCV40WR because of your tubes.

Thanks again,
-Sam Anderson

-----Original Message----- From: John Purdy []  Sent: Sunday, April 16, 2006 7:18 AM To:
Subject: RE: Customer Order: 7013


I got the tubes on Saturday, and the order was placed on Thursday - quick delivery! Anyway, I put the tubes in and adjusted the bias as soon as they came in, and I couldn't be happier!!!! It is really as if I have a new amp. My HRD has NEVER sounded this good. I sincerely appreciate all of your help in answering my many questions. You were quick to respond, and I learned a lot from your e-mails. Not only do you have a new customer for life, but I will direct my guitar playing friends to your website.

Thanks again,


From: Brandon de la Cruz [] Sent: Saturday, April 15, 2006 8:23 PM To: Eurotubes
Subject: Re: Retubing Traynor YCV40

Hi Bob -
Just wanted to let you know I've installed the Eurotubes and I was blown away by the difference.  It's like night and day.  You've definitely made a believer out of me.

From: John Hardiman [] Sent: Saturday, April 15, 2006 5:11 PM To: Eurotubes
Subject: RE: Tubes!

hey bob, im sure you are used to hearing this by now but i just wanted to say thanks. those kt77's sound amazing in my framus dragon. added all sorts of usable low end depth and a "fullness" i have yet to achieve with this head. ive been through every overdrive, eq pedal etc. in front of the amp and now i dont need anything. just threw the tubes in and it was perfect. thanks again. i will order some more for my triamp soon!!!

-----Original Message----- From: Nik Olas [] Sent: Wednesday, April 12, 2006 10:25 AM To:
Subject: Re: Tubes

Bob, Jay and the Eurotubes Family,

My tubes arrived Saturday and I've plugged them into my Peavey Classic 30 and wow, I'm blown away! I'm not sure I'm worthy of such great tone. Thanks for your personal attention, quick delivery and great communication. I'll be telling anyone who listens about Eurotubes.

Thanks Again,

Nicholas Simovich


From: Casey P [] Sent: Saturday, April 08, 2006 9:27 PM To:
Subject: thanx guys

Hey Jay
I just wanted to say thanx so much for all the help with the tubes for my amp. (Peavey Classic 30) The amp sounds a lot better than it did with those worn out old tubes, and I'm glad that I had the chance to deal with Eurotubes.  You guys have awesome customer service from start to end.  I will definately deal with you guys again next time I need tubes.  The tubes you gave me provide a warmer tone than I had before on this amp.  The clean channel is actually a lot more playable now than it was before so I'm glad for that.  The amp sounded great in church tonight and I for once didn't mind tilting it up toward myself on an amp stand.  Anyway, just wanted to say thank you so much for all your help, it has been greatly appreciated. 

From: mrpuppy [] Sent: Friday, April 07, 2006 10:42 PM To: Bob
Subject: New Tubes!

Hi Bob,
Just had to let you know that the tubes for the Carvin X-100A are killer tone monsters. It had generic tubes in it when I got it that sounded horrible. I put a set of Sovtek preamp tubes (new) and used Grove Tube power tubes and it sounded horrible. I installed the JJ's as soon as they arrived, cranked it up a went straight to tone heaven. The clean channel is super clean and the gain channel is awesome!
Thanks you for the super fast shipment and the great price!
Dennis Ingram

From: dan driskill [] Sent: Wednesday, April 05, 2006 9:10 AMTo:
Subject: Re: Tubes

Dear Bob & Carla,

I honestly have to say that I am extremely impressed with Eurotubes. Communication was very fast, and it was easy to arrange for 2-day express shipping.
I already had the 5150 combo High-Gain set installed in one of the two combos we had, so I wasn't expecting anything less than clarity, and a tight tone, and I definitely got it!

This set was for my Rhythm Guitarist's rig, and I believe his exact words were "I heart Bob." In my opinion, and his, these are the best quality tubes we can get, with the best customer service you could ever ask for. That is why we only get our tubes from, superior performance and service.

I just wish I could find some Eurotubes stickers to put on the door of our practice space. To let everyone know we run the badass JJs from Bob ;)

I plan on ordering a shirt in the near future!!

Thanks again!

Very satisfied customer

-----Original Message-----From: Joe Ellis [] Sent: Monday, April 03, 2006 6:56 AM
Subject: KT77's


Just wanted to let you know that I have been running the KT77's in my Traynor YCV40WR for the past week or so and it is fantastic. A bit less
lows, which is good, because I thought the amp was a bit boomy with the 6L6's. The chording on the clean channel is a lot better, and it gets a
nice bluesy breakup at around 6 on the volume. Overall, the harmonic content has definitely increased, especially on the distortion channel.
They are a great fit to this amp.

Thanks so much,
Joe Ellis

-----Original Message-----From: John L [] Sent: Friday, March 31, 2006 12:17 PM
Subject: review on purchase

I just took delivery and installed a kit for the Traynor YCV 40. I felt the stock was too mushy, with not enough clean headroom.

All I can say is OH MY GOD! Just incredible difference. I just plugged in a Curtis Novak equipped strat and really couldn't get a bad sound - clean, gain, high gain crunch - still all there, just so much more 'tubelike' - reminded me of old 60's Fenders that I grew up on - just with way more gain. If anyone is debating the possible value of a re-tube, hurry up and get on it. It's by far the BEST musical value I've ever gotten for $55

You guys rock, and I've already posted on ReRanch - the guitar refinishing forum, for all other guitar refinishers like myself searching for the holy grail of tone.

I'll be back for more!

From: Mark and Kim [] Sent: Wednesday, March 29, 2006 2:03 PM To: Bob
Subject: More new tubes!

Just got my re-tube kit for my Mesa Nomad 45....and all I can say is WOW again!!!! The amp is SO quiet and warm sounding, even in the high-gain lead mode....I have always believed that with any tube amp, great tubes are a must.....and I have found the "home" of GREAT TUBES!!!!! And with only a three day wait after ordering, I'm never leaving "home"!!!!!
Thanks again Bob.....You ROCK!
Mark Holmes


From: pamela c [] Sent: Monday, March 27, 2006 4:13 PM To:
Subject: Re: Tubes

I don't know if this is the place to send feedback, but here it comes. My experience with your company has been top notch since my first contact. Inquiries were answered promptly and easy to understand, ordering was very simple through the online store, shipping was very fast (shipped the next day and arrived in three), and the tone... WOW! I have a totally different amp now. Thanks for great service and a great product! (and the hand written thank you on the invoice was a nice touch too!) I will be refering everyone I know to Eurotubes with confidence. Great job fellas.


From: Mark and Kim [] Sent: Saturday, March 25, 2006 11:14 AM To:
Subject: Got my new tubes!

Just wanted to drop you a E-Mail about the new "hand picked graded" high gain ECC83's I got for my Mesa Subway rocket amp. What a wonderful sound...and that's just in my living room (irritating the wife in the process!!! But even she said it sounded good!!!) In either clean or overdrive mode, the pre-amp was dead quiet and fat! As I've stated before, I always run the gain all the way up, and these new JJ EC83's sounded fantastic! I think I've found my high gain pre-amp tubes at last! Thank you so much!!!! Can't wait to gig with this amp!!!
Mark Holmes

From: Marcelo Moojen [] Sent: Wednesday, March 22, 2006 4:42 PM To:
Subject: My tubes arrived!

Hi Bob, my tubes arrived the last weekend. Everything came right and within the schedule. Put them in my TwinReverb clone, in my V-Twin and my custom 6L6 amp. The V-Twin got even better, and the amps changed dramatically! It was like buying new amps. The custom 6L6 amp is now louder and it's tone is much more alive than before. But the TwinReverb retube really surprised me. The bass didn't had much definition, and now is very tight (I use a 2x12 closed back cabinet). The medium tones were kind of dead too, and now they sound very warm! The treble is now brighter and ear-pleasant, not ear-piercing like before. I'd like to thank you for these tubes and your excellent service. When I need tubes you'll be the guy =)


-----Original Message-----From: Chris & Dianna [] Sent: Tuesday, March 21, 2006 9:19 PM
Subject: integrated quad on 5150


I installed and tested the JJ KT-88/6L6 mix on the 5150 head: WOW!!! The reference volumes before the KT88's were installed were 3.25 dist, 4.0 clean, with my rack at nominal. When I installed the KT88's, my marshall cabs thundered like they've never done before. I had to turn down the volume knobs to 1.5 dist, and 2.0 clean to achieve the same volume as the stand alone 6L6!! My rack was sent into saturation, the amps headroom increased dramatically, the low end was tighter, punchier and more dynamic, and the highs were brighter.

Thank you so much for the recommendations!! Can't wait to properly bias this thing!!

JJ tubes + Bob's advice = Guitar Euphoria

Thanks again Bob!!! EVERY guitarists needs to visit

Chris L

-----Original Message-----From: Tom Kesel [] Sent: Monday, March 20, 2006 1:37 PM
Subject: KT77s

I just wanted to drop you a line about how much I like the new JJ KT77s.

I put them in my modified reissue Ampeg Super Jet. I modded the cabinet by making it 4 inches deeper to fit an Electrovoice EVM12 (which is my one and only speaker). I like clean clean clean. But with character, of course.

The 77s replaces Sovtek EL34s. Here's what I hear:

No midrange honk. Much flatter response across all frequencies. Tight but full bottom (hmmmm!). Beautiful sparkling highs and no harshness at all.
Greater richness in harmonics. Warm and inviting.

I've done one blues and a couple of jazz gigs with the 77s and absolutely dig the tone -- as do others. I got some nice compliments from other
players. When I play loud(er), I use my guitar volume for lead tone -- no pedals. I just roll back for rhythm and open it up for solos. I like to hear
the power tubes talk -- no cone cry for me, thanks. And these new 77s are amazing! For reference, the guitar is a Guild X-180 Park Avenue (both gigs) strung w/flatwound D'Addario "12s".

Thanks for making these available. This is one kick-butt tube! I'll be using these from now on.


P.S. I should probably disclose that my bass amp is a Trace Elliot V6 loaded with KT88s, so my ears have been attuned to the "KT" tone for years. I don't know much about kinkless tetrodes, but I like what they do for geetars!

From: Savas Oguz [] Sent: Monday, March 13, 2006 12:28 PM
To: Bob
Subject: Re: tubes

 This is Savas from Turkey, I had ordered tubes for my triaxis.
 I'm sending this email to thank you for your nice sounding tubes and for your help. I installed the tubes (my friend came to Turkey from US this week) It sounds alive and rich. My highest pitch bends give so pleasing sound that i can't stop smiling :)  
Thanks again.


From: Michael Boyer [] Sent: Saturday, March 11, 2006 5:48 PM To: Bob
Subject: Re: Peavey JSX Tube SOS

I just wanted to give you a quick update on how my Peavey JSX head sounds. I had the amp biased and retubed by a local tech. The head came stock with a quad of JJ EL34’s and EH 12AX7’s. The tubes were replaced by a quad of your JJ KT77’s, three high gain JJ ECC83S’s, and one graded/balanced JJ ECC83S for the phase splitter (V4). First of all, let me say that the difference is night and day! I am soooo pleased with the tone I am now getting. I liked the JSX before, but some days were great while others left me guessing. That is not the case now. The bottom end is tighter, thicker, and deeper (as promised). The mids have the great EL34 crunch, while the highs chime with lots of head room. I feel the amp now has a better attack too. I am simply blown away at how this head growls. My JSX is NOW a tone machine!
Lastly, I just wanted to thank you for putting out such an informative website. Not to mention responding to emails in such a prompt fashion. With out the information and visitors posts, I honestly believe I would still be searching for that dream tone. Possibly dropping a few grand more on another head, when a hundred bucks in replacement tubes did the job. If you have any other customers wanting a great modern voicing out of their JSX, mention the above tube combination…It definitely worked for me!
Thanks Again,
Michael Boyer

-----Original Message----- From: Powers Court []  Sent: Saturday, March 11, 2006 7:10 AM To:
Subject: Re: Tubes, Mesa Boogie Strategy 500

Greetings Bob & Carla

We got "The Beast" (Mesa Strategy 500) up & running with the JJ tubes & I must say it really
does sound better. It seems to have more of the the raging fury we expect
from our Boogies!

I really noticed the difference on the clean sounds it has more depth & sparkle
than before... Exceptionally nice!

Also, the fast & prompt service was top notch, please don't change a thing!

Thank You!

Steve & Danielle
USA Dark Power Metal Band
Dragonheart Records

From: [] Sent: Thursday, March 09, 2006 2:11 AM To:
Subject: Thank you!

I put those high gain JJ's in my Peavey Classic 50 head and holy s*** does it kick ass. We're in a studio with soldano's and hughes and kettner's and bogner's and plexi's and mesa's and everyone is just impressed by how awesome the peavey sounds. I knew this amp rocked and these jj's totally brought it to life. I cannot thank you enough.
thank you again - emilio


-----Original Message-----
From: euth oudegree [] Sent: Wednesday, March 08, 2006 6:27 AM To:
Subject: JJ KT77 order


The JJ KT77s arrived safely, and it took only 5 days.

I didn’t expect any improvement over my Shaugung E34Ls since I only use the Radford STA/25 amp for mid range reproduction. I have a tri- amped hi- end system. The bass is separately powered by a powerful transistor (bridged) amp into a horn subwoofer. The treble is separately amplified by a pair of mosfet monobloks driving horn tweeters.

But… I was pleasantly surprised to hear the difference in the midrange. it sounds more life- like and natural and this is especially noticeable on
piano. Voice is more natural as well- and there is a greater differentiation between voices.

Obviously the JJ KT77s are superb valves and I have no doubt that used in a full range application the improvements would be greater.

I will be ordering more KT77s from you soon.



From: Jan G [] Sent: Tuesday, March 07, 2006 7:04 PM To:
Subject: Reviews

Hey Bob.  Thanks for your help!  My amps are now starting to sounds the way they should, thanks to you.  :) 
After spending hundreds and hundreds of dollars on different tubes, I stumbled across Eurotubes.  I spoke with Bob on the phone direct!  Try doing that with a large tube company!  The cool thing with Eurotubes, is that not only are their tubes the best on the market, but they will help you find the best possible set-up for your own needs!!!  (That is invaluable!)  I completely re-tubed my Vox AC15 and Mesa Dual Rectifier with Eurotubes and I am loving the results!  These tubes make your amp sound they way they are SUPPOSED to sound!  If your serious about tone, like I am.  Then you owe it to yourself to tube up with Eurotubes!  I am starting to realize that Eurotubes is the "deep dark secret" that the music industry does not want you to know about. 
Jan G

From: [] Sent: Sunday, March 05, 2006 1:56 AM To:
Subject: Received My Order... :)

Hello Bob,
Thanks again for your quick service!  It's always a pleasure!  I just got the KT77's and plugged them in my Road King.  Very Cool sound.  They retain the basic character of the EL34, and yet, are thicker on the bottom and just into the mids.  They stay tight and even from top to bottom, and break up very nicely, when overdriven.  Super sweet!  I was unsure on getting them at first, as I would've liked to have heard them before buying, but am very happy that I took a chance on them.  This is a slam dunk!  They have a great punch, and hitting a chord is like an exclamation point.  Play a riff and the notes are right there with authority to defend your musical turf.  The KT77's are louder and more pronounced, but at the same time, so controlled.   They give my channel 2 and 4 a whole new demeanor.  I can only imagine what a quad of them would do!
All The Best,


From: Wes Inman [] Sent: Saturday, March 04, 2006 12:44 PM To:
Subject: Hi Bob!

Just want to let you know I am very pleased with the full retube on my DSL401. Man, this amp sounds awesome now. And POWER. I never used this amp at gigs because the clean channel broke up so early. Not now. I have plenty of clean headroom, and we are LOUD. I have used this amp for the last two gigs un-mic'd and it sounds amazing. My bandmates remarked on what a great sounding amp this is. THANKS!  
Wes Inman, Torrington Ct.


-----Original Message-----From: [] Sent: Wednesday, March 01, 2006 2:09 PM
To: Bob
Subject: KT77's

Put a pair of KT 77's in my Blueverb 40-112 combo amp. This was a great sounding amp with JJ EL-34's in it, but HOLY MOLY!
This amp sounds better than ever...more singing feedback, more chime at clean settings. The amp sounds richer in 2nd order harmonics, sweeter all around.
Smitty(Blueverb Builder),said these are some of the best sounding tubes he's ever heard. I have to agree with him. WOW! The tubes have about 24 hours on them and have settled in well.
Thanks for getting these tubes made,

Mark Smith

-----Original Message-----From: Good Jason [] Sent: Tuesday, February 28, 2006 9:00 PM
Subject: KT77 review

Let's see, matchup tonite:

JJ KT77 vs. JJ E34L vs. Mesa/Electro-Harmonix EL34. The two rings: Mesa/Boogie Stiletto Deuce, Peavey JSX.

The JSX has had it's JJ E34Ls for almost a year now with no problems, chugging away it's song. They are by
far tighter and meatier sounding than the EH EL34s they replaced, but the JJ KT77s took it a step
further. They ALMOST have the girth of a 6L6 in this amp, but still retain that awesome EL34 crunch. The
tone from these bottles is nice and thick: nice fat, highs....thick, crunchy, mids, and a tight, deep
bottom end that never fell apart. I'm sure the two JJ ECC803's and two JJ ECC83s's in the preamp helped too,
but who's counting?

On to the Mesa. The stock tubes seems WAY too mushy to be in a nice amp like this. On the gain channel in
"Fluid Drive" mode, the stock EH tubes seemed to compress too much and totally mush out. With the JJ
KT77s in place the amp totally woke up. The bottom end was much tighter, bigger and fuller. The mids were
more present and cutting, and the highs didn't feel like icepicks in your ears. I am very impressed with
these tubes. I'll be sure to retube with these guys!



From: It's a mail. Yeah! [] Sent: Tuesday, February 28, 2006 1:46 PM To: Bob
Subject: SV: ORDER: KT77's are in!

The KT77’s are in the Marshall Club and Country.
They really shine in this amp. I can for obvious
reasons not compare to the original Goldlion’s as they
where long gone from the amp when I got it.
But the JJ’s sound supreme. Tight, clear and warm.
The harshness from the Svetlana EL34’s are gone and
the amp has gone from a 7 to a 10 (or higher)!



From: violins CONRAD [] Sent: Tuesday, February 28, 2006 10:17 AM To:
Subject: B52 212 Combo Amp

Hi Bob,
Thanks so much for all your help with my first retube of my son's B52 Combo amp. After many phone calls and crazy questions from me I was able to replace the tubes and rebias the amp. What a difference, my son loves his amp now, he was thinking of trading it in again, looking for the perfect sound. We installed the 6L6GC and the ECC83S that were all balanced by you and I have to say the range of the amp is now amazing. I was not sure if I would notice the difference but it was such a big difference that even I could tell. Thanks for all your help and now we will be doing his new Peavey JSX to give it some more bottom end.
All the best,
Joe Conrad
Warren, NJ


From:  Richard [] Sent: Monday, February 27, 2006 12:53 PM To:
Subject: RE: Tubes

What a stand-out you are.  I got the tubes on Saturday.  The improvement in tone on my DC-3 is undeniable.  The clean channel now does EXACTLY what I want it to - nice bite without being brittle (it responds really well to compression as well); and the drive channel is screaming, but maintains the sound and character of my strats and teles beautifully.  Overall the amp just sounds so much fuller; the tone was there before, but now there's just more of it.  I'm used to running two 12s in an extension cab when I need a bigger sound, and I may not need to do that any more.  My aching back will be thanking you for that.  I wish I had found out about you and your company years ago.  I will wholeheartedly recommend you to every guitar player I know.

From: Rick Wagner [] Sent: Saturday, February 25, 2006 12:55 PM To:
Subject: eurotubes

bob i just want to say the tube set i got for my hot rod deville 4-10  is everything u said would be and more .  i was  always happy with the clean sound of the amp, but the drive channels did not cut it at all.  i got the 6V6's and ecc83s set with high gain and i am tickled pink.  i was worried about the head room by cutting the power  in half  but not a problem the amp has plenty to spare.  the overdrive is fantastic now i dont even need to use the fulldrive 2. i could have bought 4 sets of the jj tubes and never bought the fulldrive even tho it is a great pedal.  i am telling all my pickin friends about eurotubes and j j electronic. they really put the groove tubes to shame. got the order quick. the quality and service is top notch.    thanks again.  

Here is yet another review from a Hifi customer of mine Blain. He wrote me with his initial impressions and then again after a few hours when the tubes had sweetened up.

 -----Original Message-----
From: []
Sent: Friday, February 24, 2006 6:08 PM
To: eurotubes
Subject: KT77


-----Original Message-----
From: []
Sent: Friday, February 24, 2006 9:21 PM
To: eurotubes
Subject: kt77

Bob The 5 hours have now passed... one word to sum it all up SPOOKY. Listening to Jack Johnson on his accoustic guitar sounds so real it is not even right... in other words it does not sound like recorded music. that is why i say spooky. I love em never will i buy another el34 type again.. i guess i am done searching. I have found my TONE..


Another Hifi review on the KT77's.

From: Pieter Franken [] Sent: Thursday, February 23, 2006 6:07 AM To:
Subject: Re: Tubes

Bob, the stuff arrived yesterday in good shape. I ended up listening till early morning after installing the KT77 in my 'reference' 8B (heavily tweaked). Well, I was quite surprised by the sound. Especially the bass is extremely powerful, and overall the sound is from bottom to top clean and very fast. Compared to the Philips Metal-base, they're doing extremely well, if not to say better in power, and this is only after a few hours of break in. Also the bias is very stable, just what you expect from a Mullard or Telefunken -- no drift after doing the initial bias routine.

Thanks for your great service and hope more folks find out about these!

Cheers, Pieter


From: Paul K [] Sent: Monday, February 20, 2006 12:30 PM To:
Subject: TUBES!!!!!!!!

Dear Bob,
I received my order in 3 days as promised after which I changed the tubes in my Peavey DB210. I'm happy to say that it did make a difference!  It didn't turn my amp into the ultimate dream machine but that's the amp and not the tubes.  I also changed the tube in my Vox Tonelab and noticed a significant improvement as well.  Every tube amplifier owner should give your tubes a try - I certainly will recommend Eurotubes!  Many thanks........

I have been getting quite a few calls from you Hifi guys about the KT77's so here is a review from one of my Hifi customers Ken. The question was asked about a burn in and the answer is yes! 24 hours, but as you noticed they really settle in after an additional 4 to 6 hours.

From: ken r [] Sent: Monday, February 20, 2006 11:30 AM To: Bob
Subject: KT77 impresions

Hello Bob,
Not knowing if the KT77's had previous burn in, this is my take after ~ 20 hours.
Sounded like an EL34 up until the 5 hour mark at which time they came to life. The KT77's are much more high definition, better harmonically with lots of texture, and the sweetest, purest, most extended highs I've heard.  The 77's let all the low level detail shine through, almost transporting me to the studio on well engineered material. Don't know if it's a distortion product but the EL34' I've used (NOS Mullards, Sventlanas, dimple top slimmies) all sound grainy in comparison. 
This is one great tube and one I predict will kill the NOS EL34 market as well as the new EL34 market - why buy a 34 when the 77 is so much better?
Thanks again for the tubes and if it's not too much to ask - can I buy another quad?

From: [] Sent: Saturday, February 18, 2006 3:58 PM To: Bob

Hi Bob.
 I received my set of KT77s for my Genz Benz El Diablo 100 and all I can say is WOW!!!  Before this amp was grainy, alittle harsh in the mids and was just sluggish. The clean channels lows are big and round, not flabby and overpowering. Mids are rich and creamy and not brittle what so ever. and the highs are nice and sweet and chime like a bell. Pushed and it has a nice plexi breakup.
Let her rip on the Hot channel and oh my god... A huge fat, tight low end, mids crunch up with a sweet airy haze. And the highs just sing with such warmth, it melted some of the 2 feet of snow New England has gotten last weekend. This amp is a monster now.
Thank you for the great tubes and wonderful service.
                                                                                Thank you
                                                                                           John Sambitsky.
P.S. I enclosed a pic..

John's pic was so nice I just had to put it up! Click on it to enlarge. Thanks John!

-----Original Message-----From: Roy Villa-Agustin [] Sent: Saturday, February 18, 2006 9:03 PM To: Eurotubes
Subject: Thank you!


I just want to let you know that I got my KT77s for my Carvin X100B and I could not be happier.  Not only are they chunkier, creamer and rounder then my JJ E34Ls but they also smoother.  It cuts like a hot knife through butter.  I am so impress with them.  My Carvin already sounds very good but now it sounds great!  I am speechless.  All I can say is wow and double wow!

Thanks again,


From: Dan Weller [] Sent: Friday, February 17, 2006 10:17 AM To:
Subject: Thanks! Tube Order

Thanks again for the assistance with the tubes for the DC-3 and the super fast shipping - order arrived the next day!!  This amp has jumped leaps and bounds in tone!  Knew it would be a significant improvement, but wow!  I just can't stop playing!!
I picked up this amp for the Mesa gainy tone (just to have in the event a studio job requested it); but, between the amp's versatility, portability, and the crazy good tone the JJ's are delivering, the DC-3 is going to take the place of my AC30 and Z Route 66 for...well, probably everything. ;- )  Can get all those sounds + some spanky American (i.e. Fender) flavored cleans and it's SO much easier to move around.
Thanks a TON!!  You have another loyal customer!
Have a great weekend gents!

Dan Weller
Tour Manager
Music Director

For more info on Dan go to:

From: Jon Rabbitt [] Sent: Thursday, February 16, 2006 7:55 PM To:
Subject: Better Than Eddie's

   Dear Mr.Eurotube,
I just received my new tubes today and after about an hour or so of tightening the tube sockets, and yes you are right, it is VERY necessary, I was up and running. I have a first year block letter 5150 that always sounded decent, but never great. I've tried all the tubes, Fender, Groove Tubes, Mesa, GE, you know. They all seemed to sound the same. The amp always lacked something, I just never knew what it was. I installed the JJ ecc83s's in the preamp and the integrated quad of 6l6's and KT88's in the power amp. Within 30 seconds of playing I was blown away completely!!!!!!! The buzzyness was gone, the harmonics were jumping out at me, the lows were tight and very punchy, and I could hear every single note that I played no matter how much preamp gain used. Amazing!!!!!! I have a Wolfgang, a Les Paul Standard, and a custom strat style hotrod, come on what guitar player dosen't have one of those, and they all sound awesome through the new setup!!! Your idea has turned what was a great amp into the best sounding guitar amp period. There is no JCM 800 on the planet that can even touch this amp. Sorry Mr.Wylde!!! Anyway thanks for solving my 16 year quest for tone. My new quest is to see how many sets of these tubes I can buy so I have  lifetime supply of them. I got so fired up for the new sound that I had to do a little cosmetic surgery as well!!!! Thanks again for selling the best tubes on earth, Jon.

-----Original Message-----
From: DeVeaux G [] Sent: Wednesday, February 15, 2006 3:21 AM To:
Subject: re-tube


I just wanted to thank you for the improvement your tubes brought to my DC-3 amp. That's 2 amps in a row! It's not so much that the sound was improved, which is subjective, but that you really listened and responded to my description of what sound  I was trying to achieve. The new tubes nailed it dead-on, and I'm really pleased.

As with my last amp, the overdrive was improved, which was to be expected. But once again, the surprise improvement was on the clean
channel. Wow, where was that wonderful full rounded tone before? What a difference!!!

You really should actively market your power tubes to jazz players, because on 2 different occasions for 2 completely different amps, it
made a night&day difference. This full tone is what jazz players (and many others) are striving to achieve. Any time someone is looking to
fill out the sound of their guitar and how it fits in a band that doesn't have other instruments in the upper lows and mids sound range,
Eurotubes power tubes will make a huge difference to the overall sound of the band. It's a way to be heard without using volume.

Thanks, nice work!!!!



From: Chris Haskell [] Sent: Monday, February 13, 2006 3:43 PM To: Bob
Subject: Re: Tubes

bob, thanks so much for the fast shipping and the awesome quality tubes.
Eurotubes (Blues option #2) breathed new life into my DeVille. i was ready to sell the damn thing.
and now it's awesome. thanks again.
you've made a believer out of me. i'll be back for sure.
-Chris Haskell.

From: Russ M [] Sent: Saturday, February 11, 2006 10:54 PM To: 'Bob'

Subject: RE: I want to buy tubes HOT Rod Deluxe


The tubes sound awesome ! (Normal clean/High gain lead 6L6 option)

WOW, the clean is richer, has the sparkle and warmer.

The distortion is more three-dimensional, I can hear the notes jump out of the speaker.
You are right on the speedier passages I can now hear each note begin and end.

The articulation also extends to finger pressure – you barely change it or the angle of your finger pad and the tone moves with you.
Better sustain & the 17th-21st fret on the E string sound much better, the notes have some oomph to them.
No screeching, dialed the amp totally flat to start and spent 2.5 hours spinning the dials – haven’t heard a single tone that wasn’t useable and awesome.

A guy who works at a big music store heard the amp and said, “You have done a smart thing here, this amp sounds better than anything in here.”

Then of course, he wanted the piece of paper with the type of tubes on it, which I gave him.

Best Regards,


From: jimandmarie [] Sent: Friday, February 03, 2006 10:32 AM To: Eurotubes
Subject: Apology is needed....

I bought tubes last year from you and I stated the sound was okay and not what I was hoping for.   WRONG!   I had a load issue with my wireless. When the wireless was removed and I plugged in directly a whole new world opened up.

I am complemented everytime someone hears my sound. (no preamp, just the Rocktron Vendetta with 4 JJe34L's and 4 ECC83S hi gain) The gain is crazy and the note articulation is beyond description. Like I said I am new to the tube game and you helped me out every step of the way. THANKS!


From: [] Sent: Wednesday, February 01, 2006 8:06 PM To:
Subject: Re: Tubes

Hi, Bob -
You are the best!   I can't believe how quickly I received my new tubes...what a great surprise!
Just a quick note to let you know how blown away I am by my Dual Recto Tremoverb's tone since installing my new Eurotubes!  (6L6/GZ34/high gain option) My cleans have a bell-like chime to them and the modern channel truly rips your face off!
You have converted me and gained a new customer!  You truly are a Tube Guru!
Guy Santangelo


From: ranny petkovits [] Sent: Tuesday, January 31, 2006 7:03 PM To:
Subject: thank you for the tubes!

I ordered 4 el84's and 3 ecc83s tubes for my peavey classic 50 just this weekend and they arrived today. and WOW i never thought that this amp could sound so good. Before i had sovtek power amps and for the preamp tubes... well, all they said was made in china. i don't know much about tubes, although i am presently learning, but i know what sounds good, and these definitely sound good. for some reason i never trusted sovtek, nor ruby for that matter, but those are the most ready available tubes around, so i was glad that i found someone like you, (in my hometown none the less), who actually knows what the hell he's doing. i'm impressed on every level, the service was friendly and your recomendations were quick, yet percise. your shipping was insanely quick, and your prices were phenominal. i saw a quad of the same tubes on another site for $20 more! i never have seen tubes this affordable before, ( especially ones that some sound so good). i'm going to recommend you to everyone i can think of that has a tube amp,  )most of them have sovtek's ruby, or even worse...groove tubes.)
anyway thanks. i wish i had more amps for you to tube, but when i need more jj's i'll call you

ranny petkovits

From: [] Sent: Tuesday, January 31, 2006 4:27 AM To:
Subject: Thanks from Dave in Taz.

Hi again Bob,

Well, I have now got the JJ's into my 5150. Wow!! It is a different amp. Haven't stopped playing my guitar through it for 4 hrs now because it sounds so good. You are right about the JJ's making it sing. There seems to be a whole heap more harmonics and tone at all frequencies.The bottom end is rich and fat. Also the clarity all the way through the mids up to the high end is so much more enjoyable to listen to. Point is, after 20 years playing I finally like the way I sound !!! Thanks a lot for the great valves.
I am a very happy Eurotubes customer.

Regards, Dave Woodfield. Tas. Australia

From: [] Sent: Monday, January 30, 2006 11:37 AM To:
Subject: JJ Tubes

Hey Bob,
I wanted to inform you that my new JJ's arrived today.  I had ordered the full re-tube for my 1965 Fender Bandmaster.
First, let me say that my order was shipped same-day and arrived to me in just 2 days.  I find that remarkable.
But, what really counts is my tone.  The JJ's are wonderful.  Rich, full sound and plenty of highs without the spikyness.  I also notice a much more robust bottom end than ever before.  I'm a believer!!
Thank You,
Dan Reese
Naples, FL 

From: [] Sent: Saturday, January 28, 2006 1:50 PM To:
Subject: Re: Tubes

        I'm the guy with the B-52 AT-100 that called you a million times for questions.  Thank you for being so patient and helpful with me, for this was my first time to bias an amp or change tubes.  Anyway, I did everything you said, finally got the tubes in and the amp biased and OH MY GOD!  This amp sounds amazing.  I never thought it could sound so good.  I was hoping, but wasn't sure.  The JJs you recommended sound incredible!  The amp is so much fuller and clearer.  It totally sounds 3-D.  You have a customer for life, or as long as you're in business!   Again,  Thanks a million.                                 Sincerely,
                                                                                                Jason Cohran

-----Original Message----- From: Peter & Kim [] Sent: Thursday, January 26, 2006 6:34 PM To:
Subject: My New tubes

Hi Bob,
I purchased The "Blues option 1" from you for my HRDx, Well they arrived today. Firstly let me say, they were packaged Very well and arrived
here in Melbourne Australia, in perfect condition. Well I replaced the original tubes with the JJ's and biased the amp to 68 mlv, I can honestly say I was Blown away by the new sound. Your recommendations were spot on. Thankyou very much.

Regards Peter

From: rob zyman [] Sent: Wednesday, January 25, 2006 7:20 PM To: Eurotubes
Subject: New Tubes

Greetings Bob,
I've had my new tubes for 3 months now and I can honestly say I never thought my Tranor YCV40 could sound so good.  With the original sovtek's I just couldn't get the amp dialed in and I was ready to give up on it.  Bob, when I described to you the sound I was looking for you immediately suggested the Blues Kit.   To be honest, I didn't kow what to expect when I put in my new JJ's.  But after just a few minutes I could not believe my ears.  Your were right on.  Bob, you really know your stuff when it comes to tubes.  Your prices, delivery and knowledge just can't be beat - - - - period.  Thanks Bob I couldn't be happier.
Rob Z. 

From: SCOTT RIDDLE [] Sent: Thursday, January 19, 2006 7:04 PM To: Bob
Subject: Another heartfelt thank you

     I just wanted to send  an e-mail to thank you again for your services.  If it weren't for you I would have either sold my Mesa F-50, or worse, traded in to lose my ass and take the chance of getting another loser amp.  But as you well know, most of these amps aren't losers, they're just in need of good tubes.
     After a first try of your tubes, I was flabbergasted!!
     This, my friend, is an understatement!!!!!!!!!!!!

     This lifeless amp, which I thought was lost forever, was only going down the tubes.  Or should I say, that the tubes were already down before I plugged them in. 
     Your tubes gave a new vibrancy to this amp.  The first time I plugged into it I was blown away!!!!!!!!!!!!!
      For the life of me, I will never be able to understand why such a great corporation such as Mesa Boogie would trust their great amps to such crappy tubes. It's as if I were to try to sell BMW's with a shitty GM motor under the hood.
     Now, after three months, I am in the same state of euphoria.  Every time I flip the switch on this amp I can hardly wait for it to warm up.  I wish I had more time to play so that I could wear the tubes out and give you more business. By the way, even with the cost of shipping, your tubes were cheaper, and at least a thousand times better than what I was getting used to paying for.
     Bob, you can rest assured that even though I don't get a chance to play enough to give steady business to you, I will always be a loyal customer and I will do my best to spread the word about your great products and know-how every time I get the opportunity.
     If you're not a millionaire yet, I can certainly say, with no reservations whatsoever, that you deserve to be one of the richest men in the world.
     In fact, I would have to rate you right up there with Bill Gates.  I only wish that Windows worked as well as JJ's.
     Again, thank you for your products, great advice, and phenomenal expediency.
                                                             Your customer forever,
                                                                                 Scott Riddle

-----Original Message-----From:  Sent: Wednesday, January 18, 2006 12:26 AMTo:
Subject: Retubing Success!

Bob,  Just to let you know,the retube kit for the Blues Deluxe was right on the money; worked just like you said it would. But more important was the "Bringing Back to Life" of both the 1962 Epiphone Devon Tremelo and the 1963 Gibson GA-60! (The Hercules) Both amps had seen better days, but with some elbow grease and some new tubes (thanks!) both are being used in the smaller Blues Jams around town...........So Eurotubes aren't just for the new stuff!!!  They can put new life in the old-timers again!   Next up?   The '74 Super Reverb..... Robert R.

----- Original Message ----- From: Greg S To: Eurotubes Sent: Sunday, January 15, 2006 12:10 PM

Subject: Re: Tubes!

Bob, Just a quick note to let you know pleased I am with my new tubes for my Mesa F-30. I really can't believe what a difference it has made, the notes and overtones just explode of the fret board. Going with the lower gain has made a huge difference and really woke this wonderful amp up.I am planning on ordering a back up set soon. Also I can hardly wait till my Mesa Stiletto goes out of warranty so you can load that baby up (I can only imagine) Hope to see you at NAMM

Greg AKA Mr. Shiney

----- Original Message ----- From: "richard Hicks" <> To: <> Sent: Thursday, January 12, 2006 6:38 PM

Subject: excellent results

Bob, I just received the JJ tubes and installed them in my old trusty Peavey Classic 30 and my even older{early 70's} Fender Champ. WOW! Not only do both sound truly fabulous,it was like somebody had put new strings on my guitars.But they already had new strings! Anyway, these tubes made a HUGE difference in the sound of these already cool amps.I had to go back and re-record the guitar tracks from yesterday's sessions because the Peavey just lifted me into tube-tone heaven.Thanks for your great tubes and super fast service. The world is a better place because of cool guys like you. I am also liking the reasonable prices on your superior quality tubes. I will order more as needed, and spread the word to some of my guitar buddies. Thanks again, Rich

----- Original Message ----- From: Johan Gunawan To: Sent: Thursday, January 12, 2006 1:52 PM

Subject: TriAxis Tubes

Hi Bob,

I substituted the new Electro Harmonix tubes (made in Russia) on my triaxis with yours. ( Triaxis high gain option ) What a big difference! No kidding!

The JJ tubes reduces buzz noise in the distortion channels yet giving more gain, clarity, and dimension/resonance. Also, JJ tubes glow brighter.

The difference is definitely..... BIG!



----- Original Message ----- From: "Brian Robb" <> To: <> Sent: Wednesday, January 11, 2006 6:18 PM

Subject: Recieved My Tubes!

I got my tubes today just days after my order. The ECC81 and 6L6GC tubes were installed in my Epiphone Galaxie 10 combo. Before the amp was collecting dust because it was harsh and had a weird driven sound when pushed. The pre-amp tube really mellowed it out and the new power tube seems allot more tight and smooth. I am in love with it now. with my Les Paul it has a warm sparkle it never had before when set clean. when slightly driven with a TS9 Tubesrcreamer in front it screams. I'm extremely satisfied with the tubes and will buy in the future for a 5150 head and maybe a new 12AX7 for my Vox AD30VT.
The Tubes are unbelievable and murder the stock Sovteks.
Eurotubes service is next to none and provided me with great information and a great deal.
Thanks Again,
Brian Robb
Order #5477

----- Original Message ----- From: tony ramirez To: Eurotubes Sent: Sunday, January 08, 2006 1:12 PM

Subject: Re: KT77's!

Hiya Bob,

Man the kt77's sound friggin' awesome in the dually! ( Mesa Dual Rec ) This thing sounded good with the mesa 6l6's but now it has some serious cajones,louder,punchier and yes some real nice chunka-thunck and absolutely NO flub. The mids are full of british bark but not at all harsh and the nice high end sparkle really helps cut through a loud #%!* drummer and bass player. It now seems to have a smoother yet more aggresive lead tone and the clean channel is sweeter both normal and pushed to good ole we go...crunch!! I can't wait to hear how this thing tracks as I'll be finding out soon. I just want to say thank you so much for taking the time to listen to my requests and helping me by hand picking the right combo of pre,power and rec tubes for this rig. You'll definately be hearing from me when it's time to retube my Dr.Z. Thanks again for such an awesome service bro. -Tony

----- Original Message ----- From: "Tom N/A" <> To: "Eurotubes" <> Sent: Friday, January 06, 2006 11:56 AM

Subject: Re: Tubes!

Hey Bob,
I got the tubes today. That was fast shipping! I put them in my Mesa/Boogie Mark III Blue Stripe and it feels as if a blanket has been lift off this amp. The mids are slightly more pronounced which I really like and it has an overall feel that is just great. I especially like the hi-gain tubes; This thing SCREAMS now. It has tons of clear and articulate hi-gain structure going on now. Thanks so much for everything!

----- Original Message ----- From: Dennis P. Duval To: 'Bob' Sent: Thursday, January 05, 2006 8:21 PM

Subject: RE: A satisfied Texan!


I just wanted to say THANKS for the excellent service and awesome tubes! I ordered them on Christmas Eve and got them in plenty of time for a New Year’s show. The high gain Fender Blues Jr. set-up was exactly what I’ve been looking for. My junior Fender sounds like a mini Marshall and still only weighs 30lbs! For the past 10 years, my band “Three Legged Dawg”, has done about 40 or so gigs a year and my only regret is that I didn’t have this rig sooner. Your tubes really warmed up my sound and gave me the clarity, sustain, and the punch and crunch I’ve been searching years for. I’ll definitely be back and will recommend Eurotubes to all my buds. You Bob, are a true tube guru!

Dennis “LeadDawg” Duval

----- Original Message ----- From: Lee G To: 'Eurotubes' Sent: Wednesday, January 04, 2006 4:00 PM

Subject: RE: Tubes!

Hey Bob

I have just fitted one of your JJ retube High gain option – of course) sets for my DSL-100…….holy mother of all things that sound frickin amazing….lol….I cannot believe the difference between the stock tubes and the JJ’s……wow.

Thanks bro. I will be a returning customer for sure…..keep up the good work.

Lee Glide

----- Original Message ----- From: AJS To: Eurotubes Sent: Saturday, December 31, 2005 3:46 PM

Subject: Re: Peavey Classic 50 Re-Tube


Tubes arrived today, thanks! Only 3 days from order to door, and that's over the Holidays...WOW!! Anyway, I installed 'em in my Classic 50 and let 'em cook for about 2 hours before I played a note...when I finally did it was pure heaven! The amp sounds fantastic! It's the great vintage clean sound I wanted with a nice down and dirty lead channel. I'm hearing little nuances from each of my guitars that I've never even noticed before. I'm sure there's a scientific name for what's taking place inside my amp now but I have a much simpler word for it...VIBE!

You really do know your amps and tubes my friend. You're true to your word. You lived up to (and exceeded) every expectation I had from visiting your website. You've earned my trust and my business for good. I've got two other Peavey Classics that will soon require tune ups and I won't be going anywhere else for my tubes. Rest assured, I'll tell my friends and colleagues about you.

Best wishes to you for a prosperous 2006.


A.J. Sam

----- Original Message ----- From: Chris L To: Sent: Friday, December 30, 2005 10:34 PM

Subject: Got the tubes... AWESOME

Hey Bob,
Just wanted to say that I got the tubes, and WOW. I thought my Peavey Classic 30 sounded great to start with (had Sovtek and Electro Harmonix tubes), but now with all JJs, it sounds even better. I used to never use my bridge pickup cause my amp was just too trebly, and lowering the treble setting didn't help the sound... these JJs completely fixed that. My whole sound is just so much more COMPLETE sounding, the highs sound really NICE rather than annoying. Both the clean and the drive sound GREAT, I was surprised by how different (in a very good way) the drive sounds now.
It was probably time for me to change the tubes, but my amp has never sounded this good.

Thanks so much. For the price I've definitely found the best place to get tubes - I'm telling all my friends about Eurotubes.
Have a great New Years and all!

----- Original Message ----- From: "Baker, Sam" <> To: "Eurotubes" <> Sent: Friday, December 30, 2005 6:20 AM

Subject: RE: Triumph 60

Bob, got the tubes yesterday - thanks for the incredibly quick delivery!
You were correct on the preamp tube location on the Peavey Triumph. They're located toward the front of the amp (toward the control panel) under a cover that is held down by 4 screws. It's about 5" long or so. I used a stubby phillips screwdriver and all of them came out easily except for the one toward the front corner - that one was a little difficult, but not too tough.
All the tubes came out easily and all the JJ tubes went in easily...I turned it on and it worked! I did use powder-free surgical gloves putting the tubes in. I've heard that it's not good to touch tubes with your bare hands...don't know if that's old school myth or what, but I didn't take any chances.
( Just a myth Sam! That's only Halogen and Projector bulbs! )
The tubes that were in it were Sovtek (5881WXT for Power, 12AX7 in the preamp and phase inverter positions) and a generic (no brand name listed) 12AT7 for the reverb.
I'm playing a standard Mexican strat with a maple fretboard and standard pickups. When I plugged it in and first turned it on (in the Crunch channel), I didn't notice a difference. However, as I started changing the EQ settings, I did notice that changes to the EQ (on the Peavey Triumph only the Presence and Treble knobs work in the crunch and ultra channels - the mid and bass are preset....goofy) were more pronounced than just seemed like I was able to dial in a little bit better. When I switched to the Clean channel (where all the EQ knobs work) THAT'S when I noticed the big difference. What was before a little too muddy without the bright switch and a little too bright WITH the bright switch now was clean, shimmery, and complex with or without the bright switch. It was a HUGE difference.
Now, came the best part. Because the distortion channels do not have EQ capabilities outside of the presence and treble, I had bought a cheap (I mean $14.99 cheap) EQ pedal for added flexibility. I run that through the effects loop. I've had it a while so I had been using it with the previous tubes and it helped a lot. However, when I added that to the mix....VAVOOM! This thing is a thumping, crisp, rock and roll freak! Even with the cheap, standard pickups (I'm wiring in a Carvin Humbucker this weekend which should improve the sound that much more), it had a thickness that I had NEVER heard from the amp before. Adding the EQ made it seem like I had a $2000 Mesa Boogie or H&K TriAmp.
The other thing is the output is MUCH more stable. Some practices, I would have to turn up to 6 or 7 and others I could leave it at 3 or 4....very weird. Now with the EQ pedal providing a tad bit of boost, 3 is MORE than enough. It just smokes.
So, in closing, I can't thank you enough for taking time to talk to me and give me some direction on where to find the preamp tubes and I'm glad I spent the money on a full retube set. Everything worked perfectly and sounds incredible.
I'll definitely refer you to all my friends that have tube amps and make sure they get their tubes from you.
Thanks again.
Sam Baker

----- Original Message ----- From: Mike T To: 'Eurotubes' Sent: Saturday, December 24, 2005 1:27 PM

Subject: RE: Tubes!


I just got my new tubes (E34L's and ECC83S's) and put them in, and they really did the trick. My amp (TSL60) is kicking some serious ass now! I can use it for lead work without help from stomp boxes much more now. Thanks for the great service, I’ll definitely be a repeat customer.


----- Original Message ----- From: Craig To: Bob Sent: Thursday, December 22, 2005 6:45 AM

Subject: Re: Customer Order: 5189

Bob, thanks for the quick shipping - my JJ preamp tubes arrived yesterday. I did a straight guitar into amp "before and after" comparison. Overall, I'm very pleased with the way my amps are sounding with JJ ECC83S, ECC832, and ECC83S-Balanced tubes. The ECC83S added a little top end "chime" to my Hiwatt Bulldog - similar to what you would have expected to hear when the amp was brand new. The change was noticeable but not drastic, and the amp is a bit quieter. These results exceed what I expected from the ECC83S. I recommend that anyone thinking about buying 12AX7M Mullard reissues should buy JJ instead - these are much, much better tubes.

In my Hot Rod Deluxe, I went the lower gain route with ECC83S in V1, ECC83S-Balanced in V3 and an ECC832 in V2. I was blown away. This completely turned that amp into a real Fender. Now, all of the channels are useable and the tone is crisp and punchy. Again, I hear a more "chime" in the amp - a musical high-end that's not brittle at all. I can't wait to change the 6L6's, but I'll have to wait until my amp tech gets back from vacation. By the way, my amp tech also makes his own amps and he swears by JJ tubes. I can see why.

"GuitarTech" Craig

From: "Randy Perretta" <> To: <> Sent: Sunday, December 18, 2005 7:53 PM

Subject: Thanks Bob!

Just the received the tall plate, standard and balanced preamp tubes which I put into my Marshall JTM30. I bought the amp despite the reputation of the JTM30 for quality issues because I knew it had the ability to get to the place where the sound was "there" - rich, nuanced, plenty of sustain, ultra responsive to picking and classic
Marshall tone. It had a way to go when it got here. The sound lacked detail, sustain was just plain missing and while the tone was close, it wasn't spot on Marshall.
So after the tubes arrived, I played it for a while, turned it off and installed the new tubes right away to get an immediate, objective listen to the differences. They were considerable to say the least. All of the things I mentioned above were there much to my satisfaction. Playing this amp is an entirely different experience. It's so  responsive to picking now that it's like having a third hand to work the knobs. Many kudos to JJ's for a great product and thanks to yourself for provide an easy avenue for purchase.
Randy P

----- Original Message ----- From: <> To: <> Sent: Saturday, December 17, 2005 6:59 AM

Subject: THANKS!!!!

Bob, we were in the studio over the weekend & I can't tell you what a difference the tubes made in my Butcher & C30. It's the first time I've listened to rough mixes & couldn't find something wrong with my tone.
The C30 sounded like a dirty AC30 on the clean channel & the Butcher had chunk & clarity for miles.
Thanks again for the service & spending to the time to actually know what it is your selling. I will never buy tubes from the other online tube vendors again.
My Amps rule with the JJ TUbes in them.

----- Original Message ----- From: "Martin Stewart" <> To: <> Sent: Wednesday, December 14, 2005 9:16 AM

Subject: 12au7's

Hi Bob,
Just a little feed back for you. I recently bought a couple of 12AU7's from you the JJ's. I used them for an ART Tube pack pre-amp/compressor. The original spec was for a 12AX7 for the pre-amp and a 12AT7 for the compressor.
I changed both for the matched triode JJ ECC82's and what a difference, low noise and zero distortion. The sound is very transparent and the compression is smooth and real fast.
I thought it may be useful for you incase anyone else inquires on this piece. I use it in my acoustic rack guitar set up and like it so much that I'm thinking of one for my electric rack !
Just wanted to pass on the info !

----- Original Message ----- From: Mike Hales To: 'Eurotubes' Sent: Tuesday, December 13, 2005 4:55 PM

Subject: Tubes!

Hi Bob,

I'm really enjoying the JJ preamp tube set for my Fender ProTube Pro Reverb. I've had a chance to use them on a couple of gigs now, and they sound awesome. The lows are well-defined without being mushy, the mids are punchy but not muddy, and the highs are clear and VERY sweet sounding. Like many Fenders this amp could really get that "ice-pick" thing going on the highs, but no more…I actually have a more usable treble range to work with. The JJs have made an already good amp sound fantastic!


Mike Hales

Weatherford, Texas

----- Original Message ----- From: Greg S To: Eurotubes Sent: Tuesday, December 13, 2005 1:36 PM

Subject: RE: Tubes!

The tubes arrived yesterday. I installed them and practiced for a few hours. They smoothed out the highs and mids big time. They also cleaned up the lows while sounding deeper if that makes sense. The amp's tone controls are way more usable now. I never realized what a difference tubes can make (I always thought tubes were tubes). Why Peavey doesn't use these tubes stock is beyond me. They turned my Classic 50 from a good amp to a great amp.

Thanks for the tubes!

Greg S.

----- Original Message ----- From: Jonathan G To: Sent: Thursday, December 08, 2005 5:14 PM

Subject: a satisfied customer

Mr. Pletka:

I just received my first ever set of JJ ECC83S's and I just wanted to take a moment to tell what you already know. These tubes are fantastic! Slightly more available gain than the EH 12AX7EH's that they replaced, but the important thing is that it is BETTER GAIN. I rarely turn the drive past 7, but it is nice to know there's some reserve if I want it. The JJ's were worth every penny.

Sincerely, Jonathan Gasper

----- Original Message ----- From: MICHAEL NUZUM To: Sent: Wednesday, December 07, 2005 10:24 AM

Subject: set of tubes purchased a few months back

Hey there-

I bought some tubes off of you a few months ago for my peavey classic 50. I wanted to give you some feedback on my experience. I waited a while before I wrote so I could put some time in on the tubes and really get a feel for them. First off, it made my amp sound twice as bright and almost twice as loud. I was amazed at the level of clarity I had never experienced. High end harmonics that had never been present were jumping out at me, and this is in the clean channel. The distortion was unreal. The sustain was unlike anything I had ever had with my setup. I'm playing an 87 american standard strat, stock, through a peavey classic 4x10. Always sounded great, but never all the way there. Now it sings with a very rich, throaty, yet creamy tone. Well anyway, now I've put in a few hundred hours on them, live, in rehearsal, and recording, and they still sound sweet. They have exceeded my expectations by miles. I have to say I am so impressed with your choice of tubes for me, and the quality of the tubes is exceptional. Your knowledge in selecting the proper tubes was of such great help to me, who knows just about nothing about tubes. I never could have made such an appropriate choice without your assistance. As I said, my amp always sounded okay, and I was afraid to select new tubes, not knowing if it would be worth the price. Not only did it make my amp sound better than I could have hoped, it was cheaper than most anywhere else. I will certainly recommend you to everyone. Thank you so much.


Michael Nuzum

----- Original Message ----- From: "Tom Durante" <> To: <> Sent: Wednesday, December 07, 2005 2:24 AM

Subject: Tubes for HRD

Hi Bob,
Got the replacement tubes (Blues option #2 with 6V6's) that you sent out for my HRD Like 3 days after I called (from Oregon to NY!) and put them in as to your  instructions. I want you to know that I was pretty amazed at the difference in the amp. Besides cleaning up all the static and crackles, these tubes have given the amp a new voice, much warmer than a standard Fender type sound, more bluesy/jazzy and less c&w. I'm even thinking of  replacing that old foot pedal I lost - for the first time I actually enjoy the sound of the drive channels.

I just wanted to say thanks- I'd recommend your online service to anyone,
Tom Durante

----- Original Message ----- From: George B To: Sent: Tuesday, December 06, 2005 4:22 PM

Subject: Thanks!!!

06 December 2005

Hi Bob!

My name is George Bregendahl. I ordered a Fender Hot Rod Deluxe tube kit from you a few days ago. I installed them the other day. First of all, thanks for your rapid response and delivery.

I'm really impressed by the dramatic improvement in the sound of my amp. It sounds much louder too. When I first bought it (the previous owner had installed Mesa Boogie output tubes), I thought it was pretty loud for a 40-watt, single speaker combo. But your tubes really woke up my amp! I'm all set to rock at Madison Square Garden, hehehe. Yup, other than the complaints from my room mates and neighbors, I think I finally have the amp I've been looking for all these years. I love Fender amps for their clean sound, but I've always had to rely on stomp boxes for distortion when playing through a Fender. I wasn't expecting such a radical improvement, but thanks to you, I can count on my amp's natural distortion.

I've recommended your tubes to just about everyone I know who's involved in music. My friends who've heard my amp before and after your tubes came in the picture are eager to buy stuff from you.

Bob, again, I thank you. I hope you know that what you're doing is really important for a lot of guys like me who are struggling to realize their musical ambitions. A lot of us depend on gigs to make ends meet. What little we have left after paying the bills goes to purchasing better instruments, which will hopefully give us the sound that'll land us our big break. I realize that you could easily go ahead and charge us what the other companies are charging for their tubes. Tubes ain't cheap. Thanks for hooking us up.

Also, I thought it'd be great if you could put together some tube manuals/ amp do-it-yourself guides. I'm sure a lot of folks would be interested. If you ever do, you can be sure I'd buy one off you.

Thanks and best regards!!!

George Bregendahl

----- Original Message ----- From: MK To: Eurotubes Sent: Monday, December 05, 2005 7:19 AM

Subject: Re: Customer Order: 4975 

Good morning Bob,

I got the ECC81's and KT88's this weekend. I already knew how great the KT88s were, but the ECC81's?!

I am VERY impressed with them. Compared to my NOS JAN-Phillips 12AT7s they are smoother, more natural sounding, and have a better frequency response in every sense. They are much more linear sounding, and their crunch compared to the JANs is like comparing the density of chocolate chip cookie dough to gatorade....

Compared to my NOS Mullard CV4024s, well, that's where discerning them becomes more tricky. When clean, the JJ's seem to reach slightly deeper in the bottom end, and have a slightly more natural high end...whereas the Mullards tend to have slightly "spanky" upper-midrange and high end. The midrange frequencies on these two tubes is nearly identical. Both are fantastic sounding, and very linear. However, the crunch is fairly different on these tubes. I prefer the JJ's dramatically. There is no "sweet spot" on the JJ's...the whole range is musical and controllable with playing dynamics. The Mullards have a definite sweet range.... I've always felt that the Mullards have kind of a metallic-sounding "crunchspank" (especially on the lower registers of the guitar), and seem to lose their bottom-end as increasingly driven. The bottom-end (what was left) felt flabby and wimpy when moderately to highly driven. The JJ's remained extremely linear and OH SO creamy. In fact, they seemed to get thicker (but still retained their focus and tightness) as I pushed them harder. Unbelievable....

Oh, and the JJ's are quieter than the Mullard CV4024's.

Now, I don't mean to be overly-glowing on the JJ ECC81. I still LOVE the Mullards, and I'll still use them frequently for specific tones. However, I think overall I prefer the sonics of the JJ, and will likely use it much more than the Mullards. I never thought I'd find a 12AT7-type that could hang with the Mullard, but the JJs easily do, and even push the Mullards aside in many contexts!

Thanks for such an incredible pair of ECC81s!!!!

- mk

----- Original Message ----- From: To: Sent: Sunday, December 04, 2005 1:01 PM

Subject: Eurotubes(JJ's) Replacement Kit.


I received my order of JJ replacemnt kit for my Fender Super Reverb. At first, I was "stalling" to initiate an immediate change. A month later I te-tubed the entire amp and man was I IMPRESSED!!! The difference is remarkable. This in not just a subtle difference...I'm talking about Tonal Heaven" I am definetly a JJ tubes guy and will be ordering for my Deluxe, Twin, and Marshall amps.

Thanks Bob for all that you do in dealing and promoting JJ Eurotubes. I too will be spreading the word with my circle of "players"....or, maybe I should'nt, I should probably keep this as a "secret" to my tone. :) lol


don Royston

----- Original Message ----- From: JOSEPH PARRILLO To: Eurotubes Sent: Sunday, December 04, 2005 4:57 AM

Subject: Re: Tubes! order #4961


I recently purchased a set of JJ tubes from your site for my Fender Pro Junior. As a gigging musician I have my hands full trying to learn songs and take care of other aspects of the band. After wasting far too much time trying to research the options of what tubes to try in my Pro Junior I stumbled upon your tube replacement kit for my amp. I was so appreciative that someone has taken the time to create tube kit options tailored not only to specific amplifiers but also having the option to tweak the characteristics of the amplifier by selecting a specific tube kit.

I'm enjoying my Pro Junior more than ever. You have not only saved me so much time that I would have spent on researching the right tubes, I think you may have saved me quite a bit of money as the tubes you choose have made me change my mind about replacing the stock speaker.

Thanks for the great service, Bob. I look forward to being a loyal customer of Eurotubes and have already spread the word to my friends.

A very appreciative musician,

Joe Parrillo

Morristown, NJ

----- Original Message ----- From: "Jason Prater" <> To: <> Sent: Saturday, December 03, 2005 1:56 PM

Subject: Got my tubes!


I got my Mesa retube kit yesterday (high gain option with E34L's, Recto 50), and all I can say is WOW! I could not believe the difference your tubes made. The amp sounds so much better, the tone was good before, but now its awesome! I put them in about an hour before our band rehearsal and as soon as we started playing my bandmates wanted to know what I did to the amp. The amp is so much smoother, clearer and cuts through so much better. The other guitarist in my band is going to order some in the near future. You definatley made a customer out of me!

Thank You So Much!
Jason Prater

----- Original Message ----- From: Chris To: Sent: Saturday, December 03, 2005 11:39 AM

Subject: Review...

I have a Carvin XV212 that I recently got on trade and gave a little too much for it. It had the stock Groove Tubes in the power section and chinese tubes in the preamp. It sounded very tinny and rattley. I went to and downloaded the manual it pointed at the preamp tubes as the likely suspect. I called Eurotubes and ordered preamp tubes and it was like night and day. The tinny sound was completely eliminated and it sounded very good. But I've never been one to settle for good so I sold the groove tubes and order EL34L's and now it's Amazing.. less than amazing and I won't even keep an amp..

I also own a 5150 combo that I got right after they came on the market. I thought it sounded good but figured if it helped the carvin that much I couldn't help but wonder what it would do to the combo. I got the hi gain set and put them in and it was Astonishing. In my rush to hear it I didn't pay attention to what channel it was on or anything so I looked and it was on the Rhythm channel...

Holy Cr*& so I decided to take the Crunch off and once again Holy Cr*& it was already off I was running through the Rhytm channel with no Crunch and it sounded better than it did on the lead channel before. I was completely wound at this point and put the crunch on.. and it just gets better and better... I will have to say I may have to do something about the lead channel as the gain is off the charts... At this point I actually called peavy to see what each tube did so maybe I could just get a weaker tube for the lead channel.

The first person I talked to said change tubes one and five. I responded that five was a balance tube to keep the amp in the proper push pull operation and he said what does that mean at which point I knew that talking to the folks there was a waste of time. He transfered me to someone else that seemed to know a little more but when I told him that I wanted to keep the Rhytm channel the way it was and just get the lead channel a little tamer he said not possible as the Rhythm and lead channel gain is in both the first and second tubes and you can't change one without changing the other....I'm going to get some more tubes and see for myself..........Chris Lewis

PS... Thanks for answering all my questions and making both my amps sound better than I thought was possible......

( Hi Chris: To answer your question, it's easy just use an ECC832 in V2 to tame the second channel! )

----- Original Message ----- From: To: Sent: Thursday, December 01, 2005 5:38 AM






All the best,


----- Original Message ----- From: Eric's Guitars To: 'Eurotubes' Sent: Wednesday, November 30, 2005 6:11 PM

Subject: RE: tubes!

Pardon my French, but holy s***! It’s like I have a new rig! Thanks so much for your help in choosing what was best for my Tri/2:90. (Mesa 290 full retube & Triaxis high gain / low out option)

Anyone coming to me in the future needing tubes or any gear that is in need will be outfitted from you. Excellent service as well, thanks very much!

Eric Calcagnino

Eric's Guitars
p. 847.406-9706
f. 847.265.0936

----- Original Message ----- From: <> To: <> Sent: Saturday, November 26, 2005 9:09 AM

Subject: Re: Tubes!

Hey Bob,
Just a letter to say WOW!!! You have got to be the most with it company I have ever delt with. This is my second full retube from you and your service is great. You have got a loyal customer for all my tube need's from now on. Thank's again and I hope your having a great holiday.
Thank you, Ashley E. Meekins

----- Original Message ----- From: Michael K To: Eurotubes Sent: Wednesday, November 23, 2005 2:06 PM

Subject: Re: Tubes!

Hi Bob,

What a day...I was able to leave work a little early, and when I got home I was greeted with a lovely Eurotubes package :).

I have to say, you are absolutely right about the JJ ECC82. It is absolutely a world-class tube. I took the smattering of tubes out of my AQ1003 (RCA 5814A Blackplate, Philco 12AU7 Blackplate, RCA 12AU7A Greyplate, and random current production tube). I queued up the new Coldplay album "X and Y", not for it being my favorite, but for its excellent production and multi-layered sound.

I listened to a track with the old tubes first, and then retubed with the JJ's and relistened to the same track. The difference was impressive. The JJ's have a more open, realistic soundstage in which you're able to tell the placement of instruments in the mix. In addition, the seperation between instruments is beyond outstanding - even with multi-layered guitars, piano, organ, vocals, bass, drums, and synth - it was never muddy. Lows were punchy, yet thick. Mids were sweet. What impressed me most about the ECC82 was the highs though - they are so natural and clear, perhaps even shimmery. Yet, they never were harsh, brittle, or fatiguing. This is the way brass and cymbals are supposed to sound! Treble seems to be a deal-breaker for me, and the high end on these JJ's is just icing on the cake....

All-in-all, I won't even think about trying a different 12AU7. Simply stunning. Thanks for the amazing recommendation.

Have a great holiday.

- mk

----- Original Message ----- From: "Joe Cummings" <> To: <> Sent: Tuesday, November 22, 2005 9:44 PM

Subject: EL84 review

Thanks for the quick delivery service. As promised, here are my impressions of the JJs.
I replaced a pair of NOS JAN Phillips EL84s (bought at considerable expense from KCA NOS Tubes) in my Blues Jr with the JJ EL84s, and have gigged three
nights in a row with them so far.
My immediate impression is that they actually beat the NOS JAN Phillips, in my amp and with my main guitar (a Nash with a Tele body, Strat neck, Lollar  PAF and Lollar tele bridge special).
All the musos at the gig agreed. The sound filled the room, very 3D, and there was enhanced glassiness and sustain. When picking hard at full volume, I get beautiful compression that I never got with the Phillips (in fact I often used a pedal compressor with the Phillips - no need now). The clean was way better, too. The sound isn't dramatically different from the Phillips, just more of the same but *better*.
I can't believe what a great value these tubes are. I'll never go back to NOS, at least not for EL84s.
Thanks, Bob. You are almost a saint, providing such kickass tubes at such a great price, and with such quick turnaround.
best wishes
Joe Cummings

----- Original Message ----- From: "Mathew M" <> To: "Eurotubes" <> Sent: Monday, November 21, 2005 10:19 AM

Subject: Re: Tubes!

Wow! What fast delivery! I received them and put them in my Mark IV (6L6GC/high gain option) and Stiletto (E34L/high gain option). The tubes made a HUGE difference! I am so happy that I contacted you. Thank you so much for the help. You are officially my "go to guy" for


----- Original Message ----- From: To: Sent: Thursday, November 17, 2005 7:44 PM

Subject: recieved my tubes!


Just a note to let know I received my tubes. Thanks for shipping them so fast. 2 days from my order....wasn't expecting them for another a day or so I had to drop them in and give her a test run in my classic 50. The power tubes I replaced were SOVTEK's and I assume they were original with the amp. The tubes on the pre amp side was unmarked.
You suggested a matched quad of the jj el 84's on the front end #35 and 3 ECC88S's a standard ECC83S in V1, a high gain in V2, and a high current in V3 which was your "normal clean high gain lead channel" retube kit. Nice call.... you obviously know your stuff.

I was suffering from a microphonic tube, and mids that were unbearable, and way to much headroom.

First let me say that the tube upgrade has made a great improvement. After letting here warm up for a while the first thing I did was crank the amp with the volume off on my guitar. When I did this before I noticed a high pitch noise which i think was due to a bad or microphonic tube. Its gone now nice and quiet! Problem #1 solved. I then lowered the volumes and tested my EQ settings. Started mid way with every thing and played with the knobs for a while. The highs were about the same which was GOOD because I was happy with them. The mid were absolutely fantastic!!! These tubes really shine in the midrange. Before I had to take most all of the mids out and now I can crank the mids and still get a good tone. Best midrange I've heard!!!! Last I played with the Bass. I saw a nice improvement here also. Not as dramatic as before, but a nice improvement. I'd still like a little more bass for my tastes but I'm not complaining or even attributing it to the tubes. Problem#2 solved. I then played for several hours with different settings and found a great improvement in the headroom. I could get the amp to break up nicely with a little tweeking even at moderate volumes. It responded nicely to different picking techniques and I saw a nice improvement in the harmonics. Problem #3 solved and I couldn't be much happier. These power tubes really are some of the best out there. I'm sure there is nothing at this price range that even comes close. The Pre amp tubes are no slouch either, they are pretty quiet, unless you crank the Pre. Even then, they are much quieter than the tubes that were in the amp and I would expect that with high gain tubes with everything cranked.

Thank you very much. This was the best tone improvement dollar I ever spent. Can't wait to get to practice and try them out with my band mates.

Mark Reynaert, President
Mark Mold and Engineering

----- Original Message ----- From: "Dan Bradley" <> To: <> Sent: Thursday, November 17, 2005 1:24 PM

Subject: new tubes

I would like to thank you for your extremely helpful information, your top notch customer service, the speedy delivery ( 2 days!), and finally the excellent product you sent me. I got your tubes today, and as soon as I saw them I was stunned. I didnt expect them to be at my door 2 days from when I ordered them! You packaged them perfectly, and boy they sound so much better than the old sovteks and I havent even biased yet! Bob I would like to tell you, that I am referring you to everyone I know thanks to your excellent products, service, and commitment. Thank you again for the excellent business you hold and good luck! you rule!
Thanks alot,
Dan Bradley

----- Original Message ----- From: "Dowell, Drew" <> To: <> Sent: Tuesday, November 15, 2005 10:21 AM

Hi Bob,
I just wanted to thank you again for all your tips on biasing my Marshall and Laney. I recently put all your JJ's in both these amps, and noticed a huge difference, even with the bias set to the very conservative factory settings. Then I followed your advice and formulas for biasing, and WOW the difference is phenomenal! Both these amps were set fairly 'cold' from the factory, now they are really cooking and have tons more flavor.
You saved the day, the week, maybe even the year.

----- Original Message ----- From: To: Sent: Tuesday, November 15, 2005 7:01 AM

Subject: Order #4736 Warmin up a Deville


I was surprised to receive the tubes yesterday -- but I am AMAZED at the sound coming out of this Deville after I installed the new bottles (Blues option #2 with 6V6's). I had read somewhere that changing the tubes in an amp will only produce subtle changes and was hardly worth the effort -- WRONG!! The volume is much more manageable, BOTH distortion channels are useful now (I didn't use either one before). I don't know if the bass is extended or is just so much less muddy now. The highs are crystal clear without any fuzz or harshness, my crunch finally has some punch!! This thing wails now. There is a huge sweet spot, and pick attack and position actually make so much difference. This is exactly what I wanted -- But how did you know?

I'm glad the bean counters at Fender are doing it wrong so guys like you can make (what I hope is) a decent living.

Thanks so much,

Richard C

----- Original Message ----- From: "Dowell, Drew" <> To: "Eurotubes" <> Sent: Wednesday, November 09, 2005 4:43 AM

Subject: RE: Laney

Hi Bob,
I just wanted to write a quick thanks to you and your staff. I followed your recommendation for tube replacement in my Laney and Marshall. Both of them sound more crispy and dynamic now! Especially the JCM2000, which was kind of flabby before. I immediately noticed I didn't have to use as much gain on my pedals to get the tone I wanted, and I was able to turn up the mids and treble without the harshness that usually accompanied these settings. Your return emails were always timely, very informative and helpful. It is obvious that you love your work and take pride in it.

Thanks so much

----- Original Message ----- From: Allan J To: 'Bob' Sent: Sunday, October 30, 2005 4:52 AM

Subject: RE: Customer Order: 4334


After a couple of sessions with these tubes, (Mesa Mark IV full retube) I had to give you some feedback. Holy smoke, I’ve found my sound! These 6V6s absolutely rock in the Mark IV! Not nearly as much power (running vol on 7 now as opposed to 2.5 with 6L6s), but oh my goodness what warmth and crunch. Played a outdoor festival yesterday and got lots of compliments on my tone, from my own band as well. Big thumbs up!!

Best regards,


----- Original Message ----- From: lucas minton To: Eurotubes Sent: Friday, October 28, 2005 8:22 AM

Subject: Re: tube thoughts

Hey Bob!

This last weekend I put in my 2 high gain 12AX7s, my balanced 12AX7, and KT88's in my Mark 2.

The front end is significantly hotter, and when I hit it with a boosted signal it sounds very aggressive.

These KT88s REALLY make the amp sing. The chords ring out and the overdrive is thicker and more ballsy. The cleans have a lot more texture and the complexity is just amazing. My bass player couldn't believe the difference the tubes made. He messed with my amp before and after and was amazed at the difference.

When I crank the amp up and get the power tubes singing the crunch is great; loud, proud, and authoritive. The mids and highs are sweeter and juicier. The low end absolutely thuds. I'm sure that this head is punishing on closed back cabs but it sounds so good.

Retubing with the JJ's really helped the overall tone, as well as the touch sensitivity of the amp.

Again thanks for all your help,

----- Original Message ----- From: Mike Wallace To: 'Eurotubes' Sent: Thursday, October 27, 2005 7:21 PM

Subject: RE: Tubes!

Bob, dude, you rock!!!!! I got the tubes for my HRD today. Two days shipping is awesome by itself, but, man, these tubes are great. Just exactly the sound I was hoping to get with the high gain preamp tube. I have the chunky rhythm, and the long sustaining creamy distortion for solo’s, without using the pedals. Wooohooooo!!!!! And still have the nice clean channel for bluesy stuff. My HRD has turned into a monster. So cool.

Thanks for the help, I’ll try to send you some more business.

Mike Wallace

----- Original Message ----- From: Brandon Brantley To: Sent: Thursday, October 27, 2005 7:46 AM

Subject: Wow!

Order # 4013

Hi Bob,

It's been a while since I recieved the tubes, just now getting a chance to sit down and send this to you. The subject line sums it up: Wow!

Now this is the amp ( Peavey Classic 30 ) I paid for, finally! The results are exactly as described. The clean channel is smooth as glass, and the lead channel SCREAMS. I have taken the business card you sent with the order and wedged it under the Peavey emblem so when people ask what changed, I can show them easily without having to go through the whole spill. I may have to get a "JJ Equipped" emblem for the amp before it's all over with. Yep, they're impressive. I hope if nothing else, it sends some business your way.

Brandon Brantley

----- Original Message ----- From: "Didrik B" <> To: "Eurotubes" <> Sent: Wednesday, October 26, 2005 12:14 AM

Subject: Re: Tubes in an Orange AD15/12

Hi Bob
I just wanted you to know that I now am extremely happy with the tubes you sent me. At first I didn't recognize all the differense in sound, but now, after playing both my guitars on the "new" amp a couple of days I can really say I can hear the change in sound. The Guitar really sings now, and it is definitly not me that has improved so much the last two days :-). There is lots of harmonix both when playing chords and when playing solos, I have found new sounds in the guitar which really pleases my ear and probably most important of all, it feels like the amp now is alot more than just a reproducer of my playing, it really adds tone and space to the music. And the distortion breaks up so nicely, it is now problem finding the sweetspot where I can play clean sound when playing carefully and still have bluesy crunchy sound if playing a bit harder without touching anything else.
I have now actually tried with a couple of different NOS tubes as well, old Groove tubes in the power amp, Ruby tubes in the power amp, Tungsram 1963 ECC83 in the pre-amp, Brimar (from an old AC-30) in the pre-amp plus some other ECC83's as well... I can state that the tubes you sent me is at par or even better than those tubes when it comes to the sound I wanted. Nice crunchy, bluesy sound. Even pure clean sound is more chimey than before, even compared to the Brimar tube.
I have also, for the first time, experienced that my wife sat down and listened to my playing, because she thought it sounded so sweet and fine.
I am very pleaced!
Best regards

----- Original Message ----- From: Brennan Elementary To: Eurotubes Sent: Sunday, October 23, 2005 1:57 PM

Subject: Re: Tubes!

Hi Bob,

Just wanted to send you a note to let you know I'm very pleased with the tubes for my hrd. Thanks for responding to my e-mail, and answering all my questions. I purchased an american standard strat at the same time as the hrd, and put a set of Lindy Fralin pickups (blues specials) in it, and with the new jj tubes (blues set) in the hrd, I have a setup that gives me the ( big, fat! as you say ) Fender tone I'm after. You've got a great product at a very competetive price, and above all, provide excellent service! Like most guitar players, I have more than one amp, so you'll definitely be getting more of my business in the future. Thanks again!

Dale K.

----- Original Message ----- From: David Postma To: Sent: Friday, October 21, 2005 7:57 AM

Subject: Traynor YCV40WR (Blues Tube Kit) Purchase Follow-up


Just a follow-up to a recently received Tube order. A couple of weeks ago I ordered and received the Blues Tube Kit for my Traynor YCV40WR. Just wanted to let you know that:

1.) Customer Service

Your response to my before purchase questions via email were very helpful and were the determining factor as to why I went with Eurotubes and the JJ's. The tubes arrived two days after ordering, outstanding !!! Customer service it seems nowadays has taken a step backwards in our busy society, not in your case, again your service was superb, kudos !!!

2.) Clean Channel Noise Level

The noise level on the Clean channel (inherent to the Traynor amp as discussed) has dropped significantly (darn near as quiet as the Drive channel) after the retube. We did discuss that the Clean channel noise level may or may not change and that there were no guarantees that it would. In my case for my particular amp it is a most pleasing result. For lack of better understanding of tube technology I'll attribute the noise reduction to the quality and matched set of tubes. Again kudos to Eurotubes and the JJ's.

3.) Tone

My small circle of playing "mates" thought the amp (OEM Sovtek tubes) sounded quite nice. They all agree that with the retube it sounds even better. This coming from guys who own some "upscale" Fender and Marshall tube amps. The results have them seriously considering Eurotubes and JJ's for their next retube. I've given them your web and email address.

Feel free to post this in your Customer Review Section should you desire.


Dave Postma

Grandville, MI

----- Original Message ----- From: "Darren Young" <> To: <> Sent: Tuesday, October 11, 2005 6:12 AM

Subject: Perfect tubes

Hi Bob! My name is Darren Young and I ordered a low gain retube kit for my Peavey Ultra about a month ago. I can't possibly tell you how much of an improvement these tubes made. I played my first gig about a week ago and the tone was absolutely perfect! I play a SG with Seymour Duncan 59's and a Fender American Standard Strat and the tones were out of this world the low gain kit is exactly what I needed to get what I wanted out of this amp. Thanks so much for your help in finding the right tubes and also telling me how to retention the tube sockets I plan on doing business with you for all my tubes in the future. Thanks again!
Darren Young

----- Original Message ----- From: walker To: Eurotubes Sent: Thursday, October 06, 2005 12:30 PM

Subject: Tubes

Hi Bob,

Got my jj tubes in 7 days ( amazing ) put them in my amp and have been in tone heaven ever since. My amp (Mesa F50) got dangerously close to being traded in and the Mesa name being rubbished .The amp sounded like crap ,it pinged and buzzed ,picked up peoples cell phones and any electrical equipment people were using.The amp wasn't user friendly with outboard gear and the tone of the amp unmusical and frustrating to say the least. My new tubes have changed all that , the amp sounds wonderful!!! Hard to believe tubes could make such a difference. Tried to put a trim pot in the amp but the techs say its to hard and wont do it !! that's ok the amp sounds great .

Again ,I would like to thank you for your generous advice and prompt replies to my pesky questions. ( You can put me on the list as a loyal customer ).

Warm thank you from New Zealand

John Walker

----- Original Message ----- From: "Tom M" <> To: "Eurotubes" <> Sent: Monday, October 03, 2005 7:20 PM

Subject: Re: tubes!

Hi Bob!
Got the tubes today. You rule!!! The JJ's knocked my socks off in both my Marshall Super Bass 100 & my Traynor YBA-1. No comparison from the "Grooveless" tubes that had been in service before. I can sum up the tone in one word - AWESOME!!!!!
Thanks again for the ultra quick service & killer tubes!
Tom M

----- Original Message ----- From: To: Sent: Friday, September 30, 2005 4:09 PM

Subject: ECC83S TUBES



----- Original Message ----- From: CrunchO To: Sent: Friday, September 23, 2005 4:37 PM

Subject: Missing Picture!


DUUUUUUUUUDE, these tubes are fantastic!

Having come from using Mesa Dual Rectifiers and Marshall JCM800 stacks to play metal for the last 20 years I was concerned when I downsized to the Traynor YCV50 Blue I wouldn't have enough crunch, and I don't like distortion pedals. Now with the JJ tubes this little combo screams! Your high gain retube kit totally maximizes this amp's gain channel, and the clean channel is now zestfully clean!! Thank you, thank you, thank you!

Crunch Master Chris

----- Original Message ----- From: "Jon G" <> To: <> Sent: Friday, September 23, 2005 8:00 AM

Subject: Remember that review I promised way back when?

Well, sorry for the delay but here goes.
I've been spreading the gospel for Bob Pletka and Eurotubes since completely retubing my Mesa 400+ bass head in July 2004 with amazing results. I was referred to Bob by a friend and came to him knowing basically nothing about what I needed. All I knew was that my recently acquired head was a little old, a little glitchy, and in need of new tubes. Well, right off the bat Bob was very helpful offering advice specific to the characteristic tone of my amp and made recommendations accordingly. Between his customer service, the good advice, and my friend's strong endorsement (not to mention the price!) I became convinced very quickly. I ended up ordering (12) JJ 6L6GC's and (4) JJ ECC83S preamp tubes.
First of all, I had these tubes within 2 days of placing the order, which was fantastic. Secondly, the "above and beyond" customer service was just beginning. See, I had a little problem when I installed my new tubes: due to an unrelated bad component, I actually ended up having a somewhat catastrophic failure (an old resistor gave out on me, I later found out) which ended up destroying 4 of my brand new power tubes.
I was pretty heartbroken, and wrote to Bob explaining the situation and asking if he had any idea what could have happened or if there was anything wrong with how I installed them. He explained that this was very unlikely (which, again, I later found out was true), but that wasn't the end of it. He went on to make an extremely gracious and generous offer to meet me halfway on the cost of a replacement quad even though he had absolutely no responsibility for what had happened! That was last July, and at that time I promised him a glowing review which I am now happy to write.
Since the retube and repairs, this amp has been absolutely SCREAMING. I can't tell you how happy I am with how it turned out. The trademark mid-rangey sound of this amp has been balanced out by fatter lows and a warmer tone all around. I tend to play with distortion and go for a really big, aggressive sound. JJ tubes make all the difference. As for versatility, I recently shared my rig with a reggae band and the bassist was really impressed with the tone he got out of it, especially after seeing our set first and being a little doubtful that he'd be able to mellow it out enough. All we did was lose the distortion and roll off the highs and he was in heaven, filling the room easily with thumping bass.
Anyway, this review has been a long time coming but I have nothing but good things to report over the past year. I've told dozens of people to check out Eurotubes and send their questions to Bob and will continue to do so.
Jon G

----- Original Message ----- From: "Peter Johnson" <> To: <> Sent: Wednesday, September 21, 2005 8:34 AM

Subject: Another Success Story

Here's another success story with a bit of advice. Do the complete re-tube! I replaced the Sovtek EL84 output tubes in my Trace Eliott SpeedTwin with JJs, and while there was an improvement, it was subtle and took a couple of A/B comparisions for me to be sure of it. Then I decided to swap the pre-amp tubes (also Sovtek) for JJs. Now THERE was a difference! My clean channel was sweeter and more musical and the hi-gain channel suddenly became useable, instead of flabby, harsh sounding noise.
Thanks Bob, for your advice on the phone, and keep up the good work.
Peter Johnson

----- Original Message ----- From: Jason H To: Eurotubes Sent: Monday, September 19, 2005 8:04 PM

Subject: Re: Tubes!

Hey Bob!

I received the tubes you recommended for my Blues Jr today! WOW! They were exactly what you said they would be. I did an "a/b" test as soon as I got home. First thing I noticed was a much warmer and rounder tone with a bigger but tighter bottom end. The breakup was a lot smoother and even. Something else I noticed was that there was something missing. I couldnt put my finger on it right away. So I put the stock tubes back in and "a/b'ed" them again. Now this is not a noisy amp. And as with all unshielded strats there is noise in the 1,3,and 5 pickup positions. But this was only noticable when I was playing. For lack of a better term, there was "sonic garbage". So I put the JJ's back in and and it was gone. All that was left was pure sweet TONE! All I can say is I'm very pleased. Excellent service and an excellent product!

I have two projects on the horizon. A single ended class a build and a 1972 SuperReverb restoration/blackface. Both will be getting JJ's. Cant say thanks enough. I normally dont write letters like this, but then I rarely get service like this so I thought it was warranted.

Thanks again

Jason Haddock

----- Original Message ----- From: To: Sent: Tuesday, September 06, 2005 10:46 AM

Subject: Hi Bob! Many Thanks!!!


Having played thru tube amplification for my entire career, I can speak with confidence about tone. I have played Heavy Metal to Country. Being a songwriter led me into the recording field, where I work with artists of many styles. What I do in the studio is hard to define. I work very closely with the musician's. I'm the guy out in the main room trying to get the best possible tone from every source we record. I'm an analog guy. I love vintage audio gear and I love great sound.

When I re-tubed my main amp (Marshall JCM 200 TSL) the other guitar player in my band was playing thru a Peavy XXX stack. His Peavey sounded better than any Peavey XXX I had ever heard. He recommended JJ's Tubes to me. I got a set through a local distributor. The amplifier simply took on a new life. The JJ's E 34L tubes we installed blew the doors off of the Boogie Tubes which were installed in the Power section of the Marshall, simply put, the JJ's tubes SMOKED the Boogie's. My low end now had that "bloom," it was full, not a spec of "flab." The low end was extremely tight.

The midrange was extraordinary, and the high end amazed me. The detail was in fact astounding. Not one trace of shrill, and ear fatiguing screechiness. At the highest of gain settings every note, of every chord I played rang true. The amplifier now had that responsiveness that I had been missing. The clean channel, which I had previously hated, now began to remind me of a Fender amp which I once owned. This surprised me. I was one happy camper!

I had never spoken with Bob until I recently purchased a new tube amp strictly for use as a production tool. I bought the amp, took it to the studio one afternoon and had our lead guitarist Alex plug his guitar (Yngwie Malmsteen signature Strat) into his POD xt, and then ran that into the input of this new little tube amp (a Crate V 58 5 watt )

WOW! The brittle digital sound of the POD's modeled sounds sprang to life!

Alex sent me a link to Bob's site, and I immediately called him. In all of my years doing what I do, I have NEVER run across another person, who's knowledge of tubes has come any where near Bob's. His passion for what he does shines through. An in-depth discussion of which tubes would work out best for me truly surprised me. Talk about service! Now, THIS is service, a factor which no one who calls this man will ever doubt. As I thought the tubes were waiting in my mailbox for me. The packing was obviously done with care.

The difference in performance was quite noticeable. Set at a low gain setting the amp cleaned up quite nicely. The sound was full, and yet there was that distinct "chime" which I just adore.

At high gain settings the amp simply breathed fire! Gain and sustain for days! The JJ EL84 and the JJ ECC83S in combination simply left the Chinese Groove Tubes which came factory installed in the dust where they belong. Suddenly there was the low end tightness that I wanted to hear. Now this is a rock guitar tone! The mids have a complexity now that was not there with the stock Groove Tubes. The highs are now much clearer. There is not a trace of brittleness. In terms of fidelity there is absolutely no comparison here. The JJ's tubes win this shootout hands down.

While I am certain that some players won't know what the differences are, they are definitely there. Hey, some players will swear up and down that a model of a tube amp sounds exactly like the modeled amp, when in fact modeled sounds pale in comparison to the reality of a tube amp. If You are a tube amp player and fidelity makes a difference to you, then it's a no-brainer here. JJ's tubes are the best tubes I have found to date.

Great service. Bob's level of customer interaction is unparalleled in the field of professional audio.

Thanks a million Bob!

Larry "Lz" Sentelle

----- Original Message ----- From: "robert sherman" <> To: "eurotubes" <> Sent: Wednesday, August 31, 2005 3:47 PM

Subject: Triaxis/2:90 tubes

Hey Bob,
I came home from work today and the tubes I ordered were already here. Great job at getting them out. I appreciate the effort you obviously put into packing and handling the order. Having the tubes segregated and marked for me was a nice touch.
I put them in this afternoon and the difference was amazing. I started out on the clean green channel and the warm and depth was greatly improved. I had read that the JJs were a bit dark for some people and while they do sound very fat and round the top end was there and very glassy.
Next I went to the Lead I red, which is the voice I usually go to for hard stuff. Nice tight bottom, solid mids and the top end was screaming. I put that channel through its paces and after I stopped laughing I checked out the other Lead I voices and they were all sounding phenomenal. I play a Les Paul with a Seymour Duncan CC in the bridge and the Mark I voices were thick and creamy. They used to be a bit buzzy but not anymore. Killer Santana tones.
I never used the Lead II channels which are supposedly the Mark II, III and IV voices. They never sounded authentic to me and they were a bit too buzzy and brittle for my tastes. Oh my God what a difference. Those channels are smokin now and the balance of roundness with the searing quality the Mark combos have really floored me.
I may have mentioned before but I'm an administrator (Robert S. obviously) on the Seymour Duncan User Group Forum and I've been hanging out there almost six years. I can guarantee that I'll be running off at the mouth about both your service and the JJs over there for some time to come.
I also have a 1984 2203 that I recently had converted to EL34s. I'll be looking for some tubes for that as well after I take care of a couple of other things on my "needs" list.
Anyways, thanks for a great sounding rig. I've been playing for 30 years now and I've never had better tone.
Robert Sherman

----- Original Message ----- From: Timothy Renn To: Sent: Monday, August 29, 2005 8:22 AM

Subject: RE: Customer Order: 3889


Put the new tubes in today, (They actually got here Saturday, 2 days after ordering) and they were exactly what I was looking for tone-wise. But that's not the real reason I'm e-mailing you, as the JJ's get plenty of glowing (heh-heh, tube joke) reviews. Any jerk can sell a quality product, the reason I'm writing is because of your STELLAR customer service. You are, by far, the most detail attentive businessman I have ever dealt with, via the web or otherwise. Your knowledge of tubes and what gives people what they're looking for is outstanding, and your speed in replying to inquiries is almost unheard of these days. Thanks again for hooking me up with the right glass to get the most out of my amp, and for taking the time to personally reply to any questions I had.

Tim Renn

(the newest member of the life-long Eurotubes customer base)

----- Original Message ----- From: "Guitar Lab" <> To: "Eurotubes" <> Sent: Sunday, August 28, 2005 11:57 PM

Subject: tubes!

Finally, Sunday, My day off!
I put the JJ pre's in my Fender 57 Twin and no surprise there, Fender Amp + JJ Tubes = Best Tone
I put the high gain JJ pre's in my mesa dual rectifier and HOLY COW! I was not expecting this! Man, i gotta be honest, i didn't really think i'd notice the difference in normal ECC83S and the high gain matched ones, but your prices were reasonable so i thought to myself, "Why not pay a little extra for the high gain matched ones???"
Best 50 bucks i've even spent this year! Lots more gain! Really noticeable! My mesa dual rectifier has about as much gain as the mesa MarkIV now, and thats alot!
Had to drop you a quick note and say thanks again!
~v^-( Joel Reed )-^v\/v^-( )-^-- - -- -

----- Original Message ----- From: "Carlos J." <> To: "Eurotubes" <> Sent: Sunday, August 28, 2005 4:54 PM

Subject: Thanks

Hey Bob, I just installed the tubes and WOW!!!!!!!!!!!!!. The Laney GH100TI woke up from the coma. It sounds AMAZING the JJ 6L6GC give it and incredible bottom end without making flabby it is tight and menacing. The ecc83s high gain tubes just make it sound incredible tons of usable gain. Simple amazing.
Thanks again.

----- Original Message ----- From: Sammy Man!!! To: Sent: Sunday, August 28, 2005 1:39 PM

Subject: Comments for you

Hey Bob,

Howdy dude, Sam here from Ireland. Thank you so much for everything! The amazing info, the speedy service and now... An amplifier which breathes FIRE!!!

You totally gave my Peavey XXX the kick in the butt it needed to be a monster! (The JJ 6L6GC and high gain ECC83S's high gain kit)

I am a very very very happy dude!!!

No doubt i will be in contact again for some more of your kickass tubes and i'll be spreading the good word of Eurotubes to all!!!

All the best


----- Original Message ----- From: To: Sent: Thursday, August 25, 2005 5:19 PM

Subject: Another Very Happy Customer!

Hello Bob,

I just wanted to let you know that you're a Glowing Orange Tube god! I got my order today and ran over to the studio to put the JJ's in. I purchased my amp used, and the guy before me plugged Groove Tubes in the power section and one Groove Tube in the pre-amp section. The dirty channel before was grainy, muddy, and harsh. I have to tell you that I couldn't be more pleased with the new tubes! As I was hoping, with the ECC803S in the V1 position, the cleans are wonderful and I actually get more usable gain than I had before! The amp sounds like a dream and there is plenty of sustain. Instead of a horrible distortion, I now get a nice smooth purr and it just gets better as I increase the gain. This will fit perfectly with the style of music that we're doing. I'm now a JJ convert! My other friends will get a glowing review about these tubes, and quite honestly, I think that I can give our lead guitarist a real run for his money with the tone of my F-50 with JJ's as compared to his stock Lone Star Special. Of course, these two amps are apples and oranges, but I think that he's going to be really pleasantly surprised to hear the sound difference, along with the rest of the band members. I'll have plenty of bottom end and will be proud to record with this upgrade.

Thanks again for your assistance and I wish you continued success in your enterprise.

All The Best,
Gary Brewster-

----- Original Message ----- From: Johan G To: Eurotubes Sent: Thursday, August 25, 2005 5:16 PM

Subject: Re: Tubes! -- NICE

Hi Bob:

Thanks for the notification. I just got the tube today (quick shipment, by the way!), tried it, and liked it. I recorded 2 clips with clean and distortion tracks for each tube, and I would say that the ECC83S (high gain) is brighter and clearer with a subtle deeper, punchier, and tighter bass. It's a very nice tone improvement. I am happier now than I was then with the stock Marshall ECC83. The stock Marshall sounds a bit compressed and more prominent in the mid-low range. It seems that changing the tube to your ECC83S is comparable to having a small effect of a BBE!

Thanks for the quick and good shipping, service, and tube!


----- Original Message ----- To: Bob From: sm7@comcast.netHYPERLINK ""t Sent: Thursday, August 18, 2005 3:21 PM

Subject: Customer Order: 3806


Bob, I received my first order of these tubes today. Order #3778. My god, what a difference!! Here's one for you...I went to pick up my new Classic 50 212 today, so I figured I would bring the tubes with me as I was walking out the door. I am good friends with the shop owner so we hung out and swapped the tubes before I left with the new Classic. The store owner, who has been dealing Peavey a long time, was floored!! He listens to these amps all day long and he stopped in his tracks when I fired it up. Clean and lead channels are awesome. I just got home with it a played for a while and now have to order 2 more sets. Give me the same set up as that last order. Moderate headroom. I have never taken the time to write such a compliment in my almost 30 years of playing. These tubes warranted it though. Your quick service, awesome tubes, and personal touch could not go without mention. Thank you again, and I look forward to getting my additional tubes so I can convert my other Classic as well.


----- Original Message ----- From: "Mark S" <> To: "Eurotubes" <> Sent: Thursday, August 18, 2005 1:17 PM

Subject: Re: Tubes!

I got the tubes and installed them according to your perfect instructions. I'm in awe over the fantastic enhancement in the every aspect of the the sound of my amp. I knew it had potential but this is crazy. I can't get enough of playing and dialing in new variations of sound. My YCV80 is so much more versitile, now. I can even get musical saturation at low volumes and clean is so crisp and clear. The reverb is even enhanced. I can even get a groovy blues warble out of the clean channel. This was worth every penny. I'm going to ask Traynor why they would distribute their amps with tubes that make is sound like s***, when a calibrated tube set like yours makes this amp rival much more expensive setups.
All I can say is I'm glad I found you. You understand
tubes! Thanks.

----- Original Message ----- From: R AndrewAU To: Eurotubes Sent: Wednesday, August 17, 2005 7:03 PM

Subject: ECC83S preamp tube.................


I recently fitted a matched quad of EL34L’s and an ECC83S matched phase splitter into my CARVIN XV212 amp. Whilst this had a quite dramatic effect on the overall characteristics of my amp, I took the opportunity of ordering an ECC83S standard in with my last customer’s order for use in the first preamp tube position of the CARVIN.

I did not have time to try the amp before rehearsals last night. The other guitarist in our band has always said that the tone from my amp did not live up to expectations for an amp of this calibre. Upon setting up and hitting my first warm-up riffs and chords his comment was “…..decent tone at last, what have you done….”.

This was completely unscripted, he did not know I had done anything different from the previous week, and I was using the same guitar. I still have one preamp tube spot to fill (position 2, the cascaded overdrive channel tube) and I will be doing this at the earliest opportunity.


Andy R

Dr Charlie Blues Band

Perth, Western Australia.

----- Original Message ----- From: "ecain247" <> To: <> Sent: Monday, August 15, 2005 6:05 PM

Subject: got the the new tubes

Thank you very much!
The new high gain ecc83s' preamp tubes, e34ls, and my mesaboogie rectoverb are a match made in heaven. My amp has sooo much more harmonic richness to it, its sick. You definitely got another devoted customer.

----- Original Message ----- From: Marcus B To: Eurotubes Sent: Monday, August 15, 2005 11:03 AM

Subject: Re: Tubes!

Hi Bob!

Just wanted to thank you for the tubes... delivered right on time and everything. The old Fender Studiobass has never sounded better, I'm more than pleased!

It creates a real warm and thick sound with a deep sub I've never experienced before.

I will most definitly order from you next time too.

Once again Thanx a bunch!!!

Marcus of Sweden

----- Original Message ----- From: <> To: "Eurotubes" <> Sent: Monday, August 08, 2005 9:03 PM

Subject: Re: preamp and power amp tubes for 5150

Hi Bob, I ordered a set of JJ 6L6 and 12AX7 tubes for my 5150 about a month ago, and I wanted to give them a thorough workout before I sent a follow-up. I like the tubes a lot, and while the differences seem subtle to my ears when compared to the Ruby (Chinese) set I had been using, I do notice an improved response from the 5150, mainly in terms of preamp noise (the amp runs considerably quieter with the JJ's). The tubes also seem to tame some high-end fuzz without sacrificing treble clarity, which is certainly one of the traits I look for in a tube (the midrange is meaty and robust, too). All in all I'm happy with the purchase.

Mainly I wanted to say thank you for your outstanding customer service, this was one of the best experiences I've had purchasing something from the web. I have recommended you to my guitar playing friends, so you've made a few more allies here in the Northwest.

Thank you,

----- Original Message ----- From: David Sl To: Eurotubes Sent: Monday, August 08, 2005 7:14 AM

Subject: Re: Tubes!

Bob: The shipment was super fast, but what I really wanted you to know is that the
difference in tone with the new tubes is unbelievable! My sound is now superior straight
into the amp ( Traynor YCV40 ) than it was with the factory tubes and a bunch of high-end
effects. I don't know why Traynor doesn't equip every one of their amps with your
product. And I was about ready to put the amp up on e-Bay; now I wouldn't part
with it. Thanks for turning a skeptic into a believer. Best wishes.


----- Original Message ----- From: Davi C To: Eurotubes Sent: Sunday, July 31, 2005 8:50 AM

Subject: Re: Tubes!


Thank you for the tubes. I don't usually write letters of thanks to companies that I PURCHASED products from. However, your tubes made my lousy sounding Mesa Boogie Nomad 45 come to life. Three trips to the shop, including Mesa's hotshot Hollywood shop, couldn't fix the noise issues. The noise is gone, but more importantly, the amp sounds great. I know the warranty requires Mesa tube, but who wants a warranty on a terrible sounding amp. Once again, I really want to thank you.


David C

----- Original Message ----- From: Hacksaw To: Eurotubes Sent: Saturday, July 30, 2005 11:03 PM

Subject: Update, Thanks!!!

HI Bob, Just got in from the show, I cant believe all the drive I had with the JJ's, ( I actually backed off the 2nd stage drive just a tad, and with my Keeley DS-1 Ultra I found I got to play my ass off and have a great time for once, I wasn't fighting to get what I needed out of the amp. it came to me so damn well. The band was astonished, speechless, everyone just looked at it and smiled. I over heard.. "baddd ass mother, it wasnt like that friday night" Thanks a million for the recommendation for high gain JJ's preamp tubes, they made the bogner shiva scream like hell's dog. you knew just what I needed. I am finally happy.

----- Original Message ----- From: Lee Jones To: Sent: Monday, July 25, 2005 5:56 AM

Subject: re: Tubes!


Thanks for the quick turnaround on my order. I received it Saturday afternoon, just in time for me to use the new tubes for a Saturday night gig at the Downtown Saloon in Leesburg VA - our first appearance there. I now have a complete complement of JJ tubes in my HRD and I'm pleased to report that with an ECC803S (12AX7) in V1, an ECC832 (12DW7) in V2, a balanced ECC81(12AT7) in V3, and a pair of JJ 6V6s in the power section, I actually am able to get a smooth and controllable overdrive out of the beast without losing the bloom of the clean channel. I did turn up both the clean and overdrive channels a couple of notches above where I had them set when I was using the stock 6L6GC's, but I was easily heard in a standing-room-only biker bar, and still had plenty of room to turn up louder had I needed it. I'm guessing that the new Weber
12F150A had a hand in taming the overdrive; however, the new speaker only had maybe three hours break-in time before the gig, and I've read that it usually takes about 8 hours for it to break in properly, so I'm attributing the lion's share of the amp's mellowing to its new set of JJ tubes. Thanks again for your spot-on advice and prompt service.

Lee Jones
Falls Church, VA

----- Original Message ----- From: "Martin B" <> To: <> Sent: Thursday, July 14, 2005 4:51 PM

Subject: Re: Feedback for peavey tube kit

Dear Bob,
just want to let you know that I'm very satisfied of the 2 high gain tube kits you sent me two weeks ago. The triple X is biaised set almost at the limit and sounds like hell! I can see a big difference in my Classic 50 too. The sound is so nice when I play AC/DC or Led Zep. The high gain tubes seems to heat a little bit more than normal tubes, but it is probably due to the higher amount of gain that they deliver. The clean seems "warmer" to my ear. There is no doubt in my mind that these are very good quality tubes. So You can be sure that I will do business with you again if I have to buy new tubes (not too soon I hope....). Thank you very much again and have a nice day!

----- Original Message ----- From: <> To: <> Sent: Monday, July 11, 2005 1:19 PM

Subject: Carvin Belair

Just thought I would let you know that I played an outdoor gig with my newly JJ tubed Belair and was totally impressed with the difference from the Sovtek tubes. I had more power, improved tone, shimmering clean, more soak than I could use in the dirty channel and everyone in the band agreed that the sound coming from my amp was sweet.

You have a new customer for life. I will be making sure that everyone I talk to knows that your tubes are the best value for the money. They will also know about your personalized service and the friendly, knowledgeable way you deal with your customers.

I thank you again for healing my sick amplifier and turning it into a tone monster of the most excellent kind.
Most sincerely,

Dennis Ingram
The Sneaker Kings

----- Original Message ----- From: Bart Leggiero To: Eurotubes Sent: Sunday, July 10, 2005 2:09 PM

Subject: Re: Tubes!-Bart "L.G." Leggiero


Just a personal note from an impressed customer. I've used tube amps exclusively for almost my entire musical career. Marshall JC's, 6100's, TSL's along with Boogie's 50/50, Rocket, Simul 2/90 and my latest a new retubed MONSTER Dual Rec. And I must note fully retubed with your integrated quad for Mesa. In one word AMAZING! In three words- POWER, AGGRESSION and AUTHORITY!!! This amp is now so powerful, I have to turn down my low end and mids (I love a tight bottom) just so I don't blow the freakin walls down!!! My bandmates joke around about how good the amp now sounds and they say "It's the tubes, Dude!" In summary all I have to say is, "Until you've retubed with JJ's and worked with Bob Pletka....YOU AIN'T HEARD NOTHING YET!!!


----- Original Message ----- From: To: Sent: Thursday, July 07, 2005 7:58 PM

Subject: These Tubes are Awsome

Hey Bob i wanted to thank you so much for supplying me with these great tubes. ( Blues option #1 for Hotrod Deluxe ) I Have been playing in my room for hours now and they blow me away. They really bring out the sound of my guitar in away i never thought possible. Also you are a wonderful business person thank you for responding to my emails and giving me help this is the first of many purchases from eurotubes that i will make.

Thanks alot, Kevin

----- Original Message ----- From: Gregg F To: 'Eurotubes' Sent: Thursday, July 07, 2005 7:23 PM

Subject: RE: HRD question...

Hey Bob:

I just got my complete new tube set for my Fender HRD. Swapped them in tonight and gave the amp a little demo. Now, you have to know I’m still a novice at this amp and guitar stuff, but the sound and tone difference was a very nice improvement. The amp just sounds clearer and more lively—not muffled. And now for the first time ever, the DRIVE channel is worthwhile; it may even sound better than the Tube Screamer pedal in front of the amp. Thanks for all your help both via e-mail and on the phone with my order, and your fast shipping time—got the set-up in 2 days. Awesome. You will definitely hear from me in the future and I’ll tell my friends with old amps to talk to you for new tubes. Thanks again, now I just need to learn how to play better.

(I’ve also lucked out living here in Wauwatosa, WI because I have a guitar teacher named Greg Koch. Have you heard of him? He is amazing—I’m in way over my head, but it should help me get better quicker)


Gregg F.

----- Original Message ----- From: Tommy To: Eurotubes Sent: Wednesday, July 06, 2005 11:31 AM

Subject: Thanks for the GREAT tubes!

Hello Bob -

I just wanted to report back to you on the JJ preamp tubes you've sent me (Mesa Mark III, an ECC803S's in V1, two graded high gain ECC83S's in V2 and V3, a standard ECC83S in V4 and a current balanced ECC83S in V5). Your recommendations were right on the money! I played a show recently (out of town) and for the first time in my playing career (25+ years) I have been 100% satisfied with my TONE! In all honesty, my sound was so rich, sweet and creamy that I didn't want to stop playing. It certainly made me play my best and I achieved a level of musical nirvana that I've never previously experienced.

Thanks so much for your attention to my needs and for getting those tubes to me on time. I know exactly where to go in the future for all my tube needs!

All the best,

Tommy G

----- Original Message ----- From: "Dylan *****" <> To: <> Sent: Monday, July 04, 2005 8:19 PM

Subject: RE: help! my tone sucks! but not anymore!

 wow... all i have to say is thank you. you've givin me the mesa that i intended to buy. this thing absolutly screams now! channel 1 is so full and warm, channel 2 is straight vintage vibe with classic rock goin all the way through it, and channel 3...... this thing had UNUSABLE tone before, i mean it was just a muddy mess.... but now it gets just about as nasty as the rectifier series!
before i talked to you i was so upset with my amp that i was planning on getting rid of my nomad and saving up for something else. so fed up i thought id have to save up $1500+ just for an amp that had no comprimise for tone (at this point it sounded reasonable) but you gave me everything i was looking for in this amp for $86. not to mention it only took 3 days for the box to get here. i didn't report back so soon cuz i was playing... i find it hard to turn my amp off now! the night i installed them i got calls because i was rockin out at 11pm!i can't help but crank it. once again thanx alot for all your help and i know where i'll be getting my tubes from now on.

----- Original Message ----- From: CYN AR To: Sent: Sunday, July 03, 2005 12:45 PM

Subject: First time JJ tube experience..........................Wow!!!

Hi Bob,

I've been away for a few days so I didn't get a chance to try out those new JJ tubes in my Peavey Classic 50/410 combo until today. Wow, what a difference these tubes have made in this amp!!!

I don't mean to gush but this improvement in overall tone just blows me away.

I read all those glowing comments about your JJ tubes from other players and I'm now a believer too. I honestly cannot believe how much these tubes have totally transformed the Lead channel on my amp, what used to sound boxy and nasally(ie, crappy), now sounds like fat, grinding, vintage 70s Rock'n'Roll! I can now get tones similar to early ZZTop and all that other good stuff. I can also get tons of great tones just backing off the volume knob on my guitar.

The original Sovtek EL84 power tubes that came with my amp( besides sounding bad) were also quite noisy and microphonic since day one, if I turned the Pre anywhere near maximum it would start to sound like Niagra Falls with a loud tea kettle whistling on top of that! But with these JJs, I now can crank both the Pre and Post knobs full out and not have any problems. I also suspect that the original Sovteks might have been quite a bit more high gain than these JJs because now, with the Pre and Post knobs dimed, still I'm getting a very useable tone, nice and crunchy.

Bob, you were right when you told me in an email that I might actually like the Lead channel on this amp with a set of JJs but I wasn't holding my breath. You were right on the money.

I had toyed with the idea of selling or trading my Classic 50 for something else but I'm so happy that I tried a tube swap first, this baby isn't going anywhere now. 8^)

You've got yourself another loyal customer here. Thanks again, BTW, I'll be posting my feelings about your tubes on the many BBS that I frequent. It's the least that I can do.



Charles A.

----- Original Message ----- From: RM To: Sent: Saturday, June 25, 2005 6:00 PM


I just wanted to Drop a line and give you a very big THANK YOU. My tubes arrived today. Only two days after I ordered them!! I had no Idea how flat my amp sounded until I put your JJ Tubes is it. WOW!! What a difference. These tube are everything you said they were. You even put together a set for my Blues Deville even though you don't already have matched sets for it. Great personal service is why you have an advantage over the "big guys" Keep up the great work. You will be hearing from me again!

Robert Miller

P.S. A few of my friends will be placing orders soon.

----- Original Message ----- From: "Matt Bach" <> To: <> Sent: Tuesday, June 21, 2005 4:14 PM

Subject: another happy camper

Hi Bob
About a week ago I installed your high gain option 5150 retube set (5xJJECC83S + 4xJJ6L6GC). I thought I would reserve comment on your tubes until I slept on it....and played it again... and slept on it.. and played it again... etc
First a little history :
I've had my 5150 for only 7 months; the "signature" version. When I bought it from a friend it was freshly retubed and "biased" with an EH set. I knew what it sounded like and I liked it; sure, it had too much gain and hissed like a monster; the clean channel was clunky and useless, and it really didn't sound good until it was quite loud - too many bees!! Sounded more like a Boss metalzone pedal! It was, however, a step up from my previous head and I was happy as I could be. I rarely used a clean tone so really, this amp was for me. Being as loud as it is, the 5150 usually gathered dust until rehearsals or gigs - there was practically no sound until "3" on the post gain and then it was pretty much gig level anyway.
Enter the internet : being bored at work, I read up on tube amps. I read about the importance of biasing. I read up on the 5150 bias mod - what the hell - my friend told me he had it biased with the new tubes. Okay - so I read the peavey forum - it's fixed bias. They tell me to forget about the bias mod, it's not necessary and will ruin your amp. Then I found your site. And then I installed the bias mod (with help from the pics on the FJA site - too easy! - do it!).
I received your "high gain" tube set in record time; I'm in Brisbane Australia and I think it took 7 days via insured airmail.
I have read your customer review page a few times and couldn't help thinking it was full of hyperbole and biased (hehe) opinions. And now I find myself writing one.
I plugged them all in; warmed them up and biased to just under 37ma, where my EH set sounded good (I invested in a bias probe socket thing from Amphead)... I haven't really experimented with colder/hotter settings just yet. First off I tried out the Rhythm channel. Even without touching the EQ, I now have a totally usable and very pleasing clean tone - even on my bridge SD "screamin demon" trembucker! Warm and sparkly at the same time. Pretty impressed; but I didn't buy a 5150 for clean sounds...
So I hit the footswitch to the Lead channel. And I can't help but play the intro to "Unchained" straight away... Response! Tone! Harmonics! .... behold my new amp! I gave the resonance and the presence knobs a twist - they actually work (whereas with the EH tubes they were little more than extraneous treble and bass controls)! The EQ range seems to be extended also! And finally, I can play it inside my house; because for some reason the volume pots now work on the lower levels - and the amp still sounds awesome. No more fizz.
What I really can't believe is the tightness of the low end. Even using a 1x12" open back cab - it's just huge and dead tight. My 4x12" is just plain crazy : it could melt your face and stop your heart (I think it did). Harmonics are leaping from my strings. Leads are searing...the tone is just gold. Pure gold!
When I say it transformed my amp 100% - I mean it. From bees to honey. Customer for life. I could write about it all day but honestly I'd rather play it. Inspirational.
Thank you SO MUCH.

----- Original Message ----- From: "Surrogate Pink Floyd" <> To: <> Sent: Tuesday, June 21, 2005 1:17 AM

Subject: Re: Tubes for Peavey Classic 50 212

Hi Bob
I got the JJ tubes delivered on Friday and put them into my amp yesterday. Well...... Im very happy. The hissing which i used to get with the stock Sovtek's has gone, as well as the noise which i used to get for the first 30 minutes the amp was on. I have also noticed that there seems to be more consistency to the tone. I love the tighter sound from the bass response and there seems to be more of a tonal range in general. I thought the Sovteks were pretty good but maybe lacked a little definition and seemed a little flat, but these new JJ tubes have much more bite to them and really do improve the whole sound of my amp.

Thanks Bob, Im going to order a few spare sets next month, because if these burn out i dont want to go back to the Sovteks.

----- Original Message ----- From: M C M To: Sent: Monday, June 20, 2005 9:22 PM


Hey Bob,

I just wanted to write and tell you how satisfied I am with the tubes you recommended. My amp ( JCM 900 ) never sounded better, it's amazing what a set of tubes will do. I had never been to crazy about the sound of my amp and basically used effects to achieve my desired sound. After installing the hi gain ecc 83s and the 6L6s, and biasing them to your recommendation with the weber Bias Rite (with vi option for only 55.00) It was like playing through a completely different amp. Thank you for all of your help and guidance, it is greatly appreciated!

Thank you

Mitch Mattingley

----- Original Message ----- From: PVholic To: Sent: Sunday, June 19, 2005 6:00 AM

Subject: You just continue to out do yourself & Happy Father's Day

"I have been playing for almost 47 years. My second amp, bought in 1965, was a Fender Deluxe-Reverb (original, not the re-issue). I soon replaced the 12" Jensen Special design with a D-120 JBL. That was my amp—I it used to judge all others. I'd owned several amps including many Peavey's but held on to that little amp, and re-tubed it so many times. In the early 80's I started using Peavey guitars and amps—even visited the factory many times. In 1991, I was earnestly waiting for the first Classic 50/410 to hit South Florida. I bought it on the spot. I took it home and, believe it or not, sold the DR. I haven't regretted that decision at all. I have seven Peavey amps and almost twenty Peavey guitars—as 'I only play Peavey or I don't play' is absolutely true. My now 14-year old Classic 50 is still my first choice. It has not once been in a repair shop, nor has it ever failed me. It is the amp I now judge all others with."

This is the third set of tubes I have bought from Bob for this awesome amp, alone. I am amazed that these came completely across the USA in two days!! I have had a new set of three 12AX7EH tubes, in this amp for the past few months, just here at the house, just to see if my ears were still telling me, that these ears can still hear. Well, I have my High School Reunion of the 60's this coming Friday, that a bunch of us Alumni players will be doing, so I called Bob to get me a new set of tubes. This included my normal #35 matched quads of EL84's, a high gain matched ECC83S for V-3 and a new ECC803 for V-1. I replaced the old JJ's #35 EL84 set that have been in this amp since 2002, and it still sounded awesome, but I thought I should bite the bullet and replace them before this Reunion gig. I replaced them yesterday, and I started playing my Wolfgang stoptail thru it. I didn't stop playing for over an hour, and I was shaking my head with a huge smile on my face. This 14 year old amp, sounded the best it has ever sounded, clean, overdriven, anything. I will highly recommend that you try this new ECC803 for V-1 in your classic series amps. I do hear a slight increase in mids and a crisp sparkle in the top end, that honestly, sounded clearer and more focused. Rear, both or front pup, it all worked. And these three 12AX7EH tubes are now in the spare tube box. They're not a bad tubes at all, just not suited to this amp, for my style. That's what my ears told me

I am even more even more excited now about this reunion, because I know I will play better, as this amp sounds better than it ever has, and that has always been great. I still will use this amp, to judge all others, and thanks again Bob for your excellent service and recommendations, and Tone Heaven. Blessings to you and yours, sincerely, Charlie

----- Original Message ----- From: Central Valley Nutritional Associates To: Sent: Tuesday, June 14, 2005 2:42 PM

Subject: JJ's do it Again!!!!!

June 13, 2005

Hi Bob,

I’ve just installed the JJ re-tube kit in my Peavey Classic 50 410 and spent the last three hours thoroughly enjoying the result. Your recommendations and assessments are right on target.

Now the drive channel is not only usable, it’s alive as opposed to being, harsh and buzzy. The distortion is smooth and comes on gradually over a much wider range and is thick and full rather than thin and grainy and the equalization of the amp shines through it all – the Strat is very much present.

But the clean channel – oh the clean channel. The highs are full-bodied, solid and sweet. Just as you said the low end is tight and deep. The Classic 50 is running a Peavey XXL 412 cab as well as the onboard 4 10’s and the lows come through nicely.

I run a Keeley Phat Mod Blues Driver on my board and I’m running it through the Classic’s effects loop. The gain on the Blues Driver is below 12 o’clock and it’s mostly acting as a boost. Playing through the clean channel and the effects loop it hits the EL 84’s directly and drives the clean channel signal so sweetly with all the full range body the amp puts out. It’s a wonderful complement to the non-Blues Driver boosted over drive of drive channel. That gives my Classic 50 at least three separate voices with the click of a footswitch or two. But it’s really more that than because I also use the Blues Driver to drive a Maxon OD 820 for more gain as well as using the OD 820 separately. All of this sounds great through the clean channel.

The Classic 50 is new and fresh from Mississippi. I pulled four Sovtek EL 84’s, one Sovtek 12 AX7 LPS and two 12 AX7 EH’S when I installed the JJ tubes. The Sovtek preamp tubes took a long time to exhibit any glow and the 12 AX7 LPS never did show any hint that current was flowing through it – not even the faintest glow. With the JJ tubes, I found the volume on the clean channel reduced by two “notches” (from 6 to 4) with the same master volume setting (6) produced the same volume of sound as the Sovteks. But the biggest improvement is TONE! TONE! TONE!

The difference is nothing short of REMARKABLE!!!

I’m SOLD and expect to remain so. The Blues option is just what I was looking for!

In a world where everyone “knows” what they’re doing, thanks for REALLY knowing what you’re doing and for sharing your experience and expertise with the rest of us – WE APPRECIATE IT IMMENSELY!!!!! AND WE HEAR THE DIFFERENCE!!!!!!!!!!!!!!!

Best Regards

Gary Foster

----- Original Message ----- From: Mark C To: Eurotubes Sent: Monday, June 13, 2005 7:03 PM

Subject: carvin belair blues option #2

Hi Bob, I just received the tubes you sent ( Blues option #2 ) and I must say that I am very impressed . It solved the muddy problem I had with the Belair and turned it into a good amp and brought a huge smile to my face . I'll be ordering another set next month so I can have a spare set .

Thank you very much.



----- Original Message ----- From: Paul Verticchio To: 'Eurotubes' Sent: Saturday, June 11, 2005 2:29 PM

Subject: RE: Tubes! (a response: WOW!!!!)


I received the tubes I ordered on Monday the 6th on Wed. the 8th. Ultra quick shipping and great packing! Kudos.

I installed them in the amp (Traynor YCV40A) and........

I had to radically re-EQ the amp. This is a "VERY good thing" as the tone controls are now much more responsive. Like another user stated "the presence control finally functions". I've been presented with a whole sonic menu.

I REALLY had to attenuate the lows and highs compared to their settings with the stock Sovteks.

The amp's overdrive channel is MUCH quieter and the strident trebles are history.

The clean channel's headroom has increased and the overall output is greater. The clean channel can go from Vox-clone like chime to a stout & juicy tweed Twin clean on steroids. The low end is tight as can be, but not in a constrained sort of way. It's just "perfect".

The OD channel covers it all from 56 Tweed Deluxe "onset of breakup" to a "dimed 50 watt Plexi."

You matched the tubes to each & every one of my "customer comment" specifications. I thank you again.

The dynamics on both channels and the "bloom factor" have increased significantly. The stock amp was very touch responsive but the JJ'd amp is an experienced player's dream. I'm confident that the expertly matched phase inverter tube is a major factor in this category.

BTW: I replaced the stock Vintage 30 with an EVM12L. As you are probably aware, the EVM12L, with its extended HF response, will reveal the 'inherent noise" shortcomings of any amp in a very unforgiving way. Other than an increase in gain and usable bandwidth, the noise floor hasn't been raised!!!! I HAVE TO attribute this to the careful engineering & manufacturing on JJ's part.

And just to complete the picture:

My guitar is a 1978 Ibanez Artist 2618 (I'm the original & only owner) that I've outfitted with a Duncan Jazz in the neck, a Duncan JB in the bridge. The circuitry has been rarified to only a single 500k CTS 'master volume'. My cables are made from Canare Star Quad and are silver soldered to G&H plugs. NO FX were used. GTR>CABLE>AMP. That's it.

MOST IMPORTANTLY, my "passion" for playing electric guitar, with the wide-eyed abandon of a 16 year old, has been resurrected in spades. And that statement is being made by a finicky 53 year-old with 40+ years of playing under his belt.

Your service is superb and your prices (for pre-screened and matched valves) can't be matched ANYWHERE.

What's even more amazing is that these tubes perform EXACTLY as described on your website. There is zero 'hype factor' in your product descriptions and a 100+% delivery on product performance.

Accuracy, honesty and extensive product knowledge are rare commodities in today's world of e-commerce.

EUROTUBES establishes a new paradigm for product description, knowledge and service that all others should follow.

Thanks again Bob & have a SUPERB weekend. I know that I will(:


Paul Verticchio

Guitar Improvements LTD.

South Jacksonville, IL


----- Original Message ----- From: "Rolfe" <> To: <> Sent: Thursday, June 09, 2005 7:30 AM

Subject: JJ EL34L tubes....

rehearsed with the new tubes (4 x EL34L's and balanced 12AX7 phase splitter) in my CARVIN amp last night. I would never have thought that a change out to these tubes would have such a dramatic effect on the tone and sound of my amp (I have always used EH EL34's in the past, changing out once a year as they seem to shake themselves into oblivion and actually rattle audibly after only a few short months).
I now use a lot less overdrive on my stomp boxes (always a must before, particularly on the clean channel), and I am re-learning how to use my amp. I can see (hear?) that I will be using the overdrive channel a lot more than I ever have in the past. I have always been a little disappointed in the overall tone of my CARVIN XV212, and it always sounded quite harsh, irrespective of which channel I was using and however I had the (active) tone controls set. It's saving grace was it's volume - it could always "cut me thru' the mix", no matter what the situation. That has all changed!! It now plays smoother, the tone controls now actually appear to do something, the gain channel sustains for days, with little effort required to induce feedback. The way I attack the strings can also effect the sound more than it ever has before. I no longer need as much volume to hear myself play, if that is at all possible. Also, I did crank up for a short while (almost getting dropped from my band in the process!!) and the amp actually seems to have even more volume now.
No more Russian tubes for this little black duck!! Thanks for all your advise and help, Bob.
Andy, Perth, West Oz (Dr. Charlie Blues Band).

----- Original Message ----- From: "Gary P" <> To: <> Sent: Wednesday, June 08, 2005 9:01 PM

Subject: RE: YCV-20 Tubes!

Hi Bob,
I received my order today and installed the tube set right away. I turned the amp on and let it idle for about 10 min. before plugging in my Strat. From the start, the sound was tighter, cleaner and less colored. Sustain, although not a problem before, noticeably improved.
The muddy, darker tone this amp produced before the retube has vanished. Bass was a problem, as no matter how clean the amp was set it sounded boomy.
Now, it's just tight and well defined.
There's still more than enough gain to make even my Strat scream, but not nearly as shrill or harsh. More musical is maybe the best description.
Your customer service is exceptional. It's a pleasure dealing with someone who puts as much effort into getting it right as you do.

----- Original Message ----- From: "Jason Hayes" <> To: "Eurotubes" <> Sent: Wednesday, June 08, 2005 8:47 PM

Subject: Re: Tubes!

 Hey Bob,
Just got the tubes on Tuesday. Popped them suckers in my Simul-Class Mark III and wow, I must say that these do for me exactly what I had hoped. Gone is the harsh, fizzy top end. No more saggy lows and a nice harmonic texture in the mids to boot. I cannot speak for anyone else but in my opinion, I cannot foresee a better choice for pre or power amp needs.

The customer service was fantastic as well.

Thanks again, Bob.

----- Original Message ----- From: "Mike Clark" <> To: "Eurotubes" <> Sent: Wednesday, June 08, 2005 5:30 PM

Subject: Re: tubes!

Hi Bob,
I received the JJs today and just installed them in my YCV20WR. I have had the amp for nearly 2 weeks and I honestly loved the sound before the retube. I must say it sounds even more incredible now! I just got through demoing it with my Strat and I can really see an improvement in the clarity and crunch, especially on the low strings. I am going to get off here and try it with my Teles and Epi ES-295 next.
Kudos for a great product and fantastic service!
Thanks a bunch!
Mike Clark

----- Original Message ----- From: Jim R To: Sent: Tuesday, June 07, 2005 4:12 PM

Subject: You are correct!


I recently called you in hopes of getting a great sound out of my mesa Boogie Rectifier Recording Preamp.

You sent me a matched set(6) ECC83S tubes. Ok, I put them in. Sounded great. Smooth and well-balanced.

Well, three weeks went by, and I thought "Why don't I give my Mesa SPAX7's a try, and I still have two Groove Tubes GT12AXM's -----Let's see how they sound NOW!

I also received the preamp tube "layout" from Mesa Boogie Engineering. So now I could pinpoint where the exact tubes would be for the HIGH GAIN, channel 2.

Well, I shuffled tubes around-----Mesa......GT......and combinations.

The sound using the other tubes was......not good. It sounded ..Ok. ...And when I added reverb, it was passable.

But I remembered " When I used ALL JJ ECC83S tubes ----My preamp sound great WITHOUT ANY EFFECTS!

I put all the JJ's back in, and sure enough, NO REVERB NEEDED. The sound is SO musical and tight!

With effects in sounds just like I am playing with a recorded CD band! My sound is SO good.

Now, just to be clear , I use my preamp to go direct, to recording......Which is like "listening through a stethescope" to your preamp.. You can hear everything.

What I am trying to say is THANK YOU, and that in 10+ years of direct recording, I have NEVER heard a preamp go direct and sound good without washing it with effects.

I have used Soldano, Marshall 9001, Voodu Valve, JMP1, LINE6(yuck). And now, finally, with JJ tubes, I have incredible direct sound from my mesa Boogie Rectifier Recording preamp.

Please tell Rectifier Recording users to test your tubes with NO effects, and use ALL JJ tubes---- and THEN try their own tubes.

They will see!!!!!

Thank You A loyal customer Jim Rogers Houston, Texas


----- Original Message ----- From: Darcy To: Sent: Thursday, June 02, 2005 8:00 AM

Subject: Thanks Bob

Thanks Bob.

Being pretty new to tube amps, I was surprised that I cooked one of the original output tubes on my Blues Junior in less than a month. I was going to replace them with stock replacements but my local dealer didn't have any and I was looking at quite a wait. A friend turned me on to your site, and to be honest, I've been intimidated by all the "moding" that seems to go on with tube amps, but you were patient with my lack of knowledge, and knew which questions to ask to get me the tube set I needed. I was also concerned regarding the wait for transborder shipping (into Canada) but I had the full tube set in about four days, just in time for my weekly jam session, and I love the sound I'm now getting out of this Blues Junior. I won't attempt to quantify the results, like red wine, I can't explain what I like but I do know what I like. It now sounds like what I originally expected of a tube amp. I had been disappointed with the stock set-up.

Thanks again

Darcy H

From: me To: Sent: Saturday, May 28, 2005 8:49 AM

Subject: Blues Option for the Peavey Classic 100.


Just had a chance to drop you a note and share my EUROTUBE experience.

Ref. - Blues Option for the Peavey Classic 100.

You say: "These give a smoother tone that is great for Blues."

How right you are!

I put in the new JJ tube set (replaced Sovtek tubes), just as you had marked and cranked it up. In the first 2 bars I immediately knew the difference. My wife came home shortly and asked what I thought. So I just started playing. Usually she expresses no opinions. She immediately said I sounded smoother, warmer, better!

She then said my playing sounded than ever before!

WOW instant MOJO from EUROTUBES!

I am a 57 year old beginner, who only plays for enjoyment at home. Yes, the Classic 100 is overkill!

Thank You, for your excellent customer service, sharing you knowledge and the great products.


Clearwater Fl.

----- Original Message ----- From: Cor To: Eurotubes Sent: Friday, May 27, 2005 2:02 PM

Subject: Re: Tubes!


My thanks to you. Your tube selection for my Peavey Delta Blues has taken this perfectly good amp and turned it into a perfect amp. The tone on the clean channel is so smooth it is almost unbelievable. Gone is any harness that the DB may have had. I really was not expecting this large step improvement. The DB is a good amp on its own and I was not thinking that it had much headroom for upgrading. I was wrong, WOW....


----- Original Message ----- From: "Vegard Bakken" <> To: "Eurotubes" <> Sent: Sunday, May 22, 2005 8:40 AM

Subject: Review

Hi Bob
Review for full retube kit DSL100.
After i retubed my amp with JJECC83S and JJE34L, i can safley crank the treble pot on my amp without get a buzzy and fuzzy sound like i had before. The tone, sound, sustain...everything is better. But the most important thing: the buzzzy gain i had before is gone...!!
Now, my amp sounds smooth and clear.
Thank you Bob. I will from now, use JJ tubes.
Vegard Bakken

----- Original Message ----- From: "Ikeman" <> To: "Eurotubes" <> Sent: Monday, May 16, 2005 10:26 PM

Subject: new tubes

hi Bob,

my peavey classic 50w 410 is now retubed. the old tubes were sovtek. well, what can I say. the clean channel is now many times better. I noticed playing licks what I have not played before with my 62 RI Strat with Van Zandt Vintage + pickups. with sovtek's the clean channel was quite "blah", it didn't kick me play better. with JJs the tone is so good that it gives lots of inspiration to play things what you have not played before.

ECC832 ( in V2) creates a very nice and smooth distortion. the sovtek distortion (ECC83) was very angular with unwanted harshness. it was difficult to adjust a good tone out of amp because the tone was overall too sharp.

now with JJs distortion is smoother. it sounds like true tube tone. amazing blues tones and very convincing rock tones. if extra gain needed, it can be taken out of box.

I have made a good deal, my tone is better. thank you.



----- Original Message ----- From: Yannis Rigas To: Eurotubes Sent: Monday, May 16, 2005 11:46 AM

Subject: Re: Tubes!


Just received the tubes today! ( high gain ECC83S's and ECC81 for Mesa studio preamp ) Well, what can I say.. Straight out of the box the difference in sound is just phenomenal. The notes are fuller, more defined and the tubes produce the creamiest sustain. There's loads more gain even at lower volumes and the notes break earlier allowing me to get that bluesy sound much easier.. I think you have a happy customer in Greece..

Thanks again for your excellent service too


----- Original Message ----- From: OldSkin To: Sent: Sunday, May 15, 2005 3:40 PM

Subject: Tubes!!!

Hey Bob, I received my tubes on Wednesday, but got home late from practice, so I had no time to pop them in. Thursday was the same deal, seeing we had a show on Friday. I got home Friday and had some time before i had to load up for the show. I popped the new JJ's preamp tubes you sent me in real quick and fired my XXX up. Let me just say have turned my amp into a fire breathing demon........the difference was incredible. I didnt have much time to fiddle with my "new amp".....but quickly dialed in a sound i liked and played a show a few hours later. The difference between the stock Electro Harmonix and the JJ's is unreal. I cant thank you enough for your quick and accurate advice for completely changing the front end of my amp into something that is totally useable now. I cant wait for the next show or even practice session where I can crank this bad boy up now and watch my other guitarists eyes as I play full bodied chords and singing notes. I'm surely a lifelong customer.



----- Original Message ----- From: To: Sent: Saturday, May 14, 2005 1:29 PM

Subject: Jeff Bober of Budda amps recommends Eurotubes!!!!!!

Mr. Pletka,
I am sorry to have seen how certain so called "amp builders" have declared war on Eurotubes. How ignorant of them to expose themselves to the sweetheart deals they have with purveyors of inferior quality, minimally tested, or untested audio tubes for whatever reason, be it price, or re-labeling. Jeff Bober of Budda amps confirmed to me that Bob at E.T. would provide me with a quad of EL84's that would make my Budda Twinmaster Plus run cooler and more articulately... but I already knew this... after all, he had done so previously with a highwatted Matchless combo. My faith always remains with Mr. Pletka and his company for the simple fact that he cares enough to provide his clientele with his knowledge of tube characteristics, and sells them tested tubes. Need I say more?? I'm sending in my order this coming week. Bob IS the answer PERIOD. Thanks, Bro'. Rick in San Dimas, Calif. P.S. Most Peavey amp owners I know switched to eurotubes years ago. PPPeeeaace!!!!

----- Original Message ----- From: Harry To: Eurotubes Sent: Sunday, May 08, 2005 5:53 AM

Subject: Re: Tubes!

Just wanted to say that your tubes are without a doubt the very best tubes on the planet!!
The other tubes I used in the past all made my amp (classic 50 212 combo) sound like trash. I even bought smooth plate 12ax7 telefunkens and el84 mullards off ebay and they didn't sound as good as your tubes. Your tubes make my amp sing. the tone is alive, sweet and mean. You have brought my playing experience to a new level.

Thank You.
Harry Florent

----- Original Message ----- From: "Curtiss STW" <> To: <> Sent: Saturday, May 07, 2005 10:27 AM

Subject: Thank You!

My name is Curtiss Gulash, and I recently ordered some tubes from you for my 5150. (an Intergrated Quad w/KT88's and 6L6GC's and 3 ECC83S's with one of them balanced for the phase inverter in V5 & 2 ECC832's for V2 & V3). I received the tubes on Thursday and haven't been able to stop playing my amp since then. It's a completely different amp, and I LOVE IT!
Since I bought my amp 3 years ago, I was happy with it, but it just lacked 'something'. I've tried numerous tube combinations, and it was either too thin sounding, too 'gainy', or just bland sounding. I honestly don't know how I found your website, but I'm glad I did. My 'lead channel' is now crunchy as heck, but there's clarity to it. My 'rythmn' channel which I use for clean is crystal clear, and thanks to you, I saved myself a good deal of money since I was planning on buying a seperate amp just for clean.
Thank you from the bottom of my heart (and wallet).
Take care, and keep up the good work.
Curtiss Gulash

----- Original Message ----- From: Marshall & Holly To: Eurotubes Sent: Friday, May 06, 2005 8:54 PM

Subject: WOW!!!!


Thank you so much for your recommendation for my Fender Blues Junior Amplifier. It is exactly as you said it would be, the JJ tubes not only fatten up the drive tone and add sparkle to my sound, Junior is not a Junior anymore! I am amazed at how retubing my amp has made the amp come to life, the tone knobs all work now, instead of varying degrees of mud, I actually have Middle, Bass, and Treble. What a difference! I have a good warm clean tone, and the amp is more sensitive to my dynamics on the strings. I have not hooked up any of my pedals yet. The amp sounds so good I just played straight into the amp for about two and a half hours after installing the JJ's. I played my Strat in the middle pickup position for over an hour, just tweaking the knobs on the amp, before I remembered that I have four other pickup positions on this guitar. I don't believe I made it to all five. Thanks again for your recommendation and prompt service. I ordered the tubes Wednesday, and they arrived today (Friday), and the tubes were fine. I am a happy camper. I wish you continued success, and look forward to doing business with you again. Please let the Jurcho's know another occasional weekend warrior is pleased with their product.

All the best,

Marshall H. McClarnon Jr.

----- Original Message ----- From: jessebalfour To: Sent: Tuesday, May 03, 2005 6:56 PM

Subject: Thank You:)

Hi Bob!! Just a short note to let you know that the jj tube upgrade kit you sent me for my Traynor YCV-WR40 arrived today, HOLY GAZZOOKS!! Only took 5 days to get half way around the globe to my door here in OZ. Well i could not wait to get these puppys in A.S.A.P, I have 3 words for you my friend ,WOW!! WOW!! WOW!! WOW!!, I know thats 4 but WOW!!!. The sound coming from my amp is the sound i have been dreaming of, thankyou soooo much Bob. In a world full of con & scam artists is is such a pleasure to find someone who's code of ethics is nothing short of truly wonderful. Bob, you are a true gentleman, and business professional, i will be Highly recommending you to all my muso mates and i hope your biz continues to grow and serve you well.

Many Many Thanx

Jesse Balfour:)

----- Original Message ----- From: "Stefan Belzner" <> To: <> Sent: Sunday, May 01, 2005 7:42 PM

Subject: Here's a customer review for you!

Hi Bob,
I just got my amp back from being repaired, so now I have a chance to really listen to the sound of the new tubes. The new 6l6's and high-gain 12ax7's are just as good as I hoped they would be. I put them in my Peavey XXX, and the sound improved considerably.  The fizziness in the distortion is gone, making it possible to use more of the gain while maintaining a good tone. The palm mutes are a lot tighter, too. The overall improvement in tone also impressed me. In short, I love the new jj's!

Bob, thanks for being patient and answering all of my questions, and thank you for the awesome new tone! I'll probably be ordering some El34's to experiment
with in the future!

----- Original Message ----- From: To: Sent: Friday, April 29, 2005 4:16 AM

Subject: Re: Tubes!

Your tube recommendation was right on. The Triple X is still a "Gain Beast" but now more usable. The gain controls actually are responsive thru their range (which is what I was looking for, not something that was either on or off past 1/4 way on). Tone is great, not too sharp or brittle any more. The clean and ultra channels are now more defined, a noticeable difference between the 2 (which was hard to tell before). I stayed with the 803 in V1, 832 in V2 & 3, and the balanced 83 in V4. Thanks again for all your help.

----- Original Message ----- From: "Michiel R" <> To: "Eurotubes" <> Sent: Sunday, April 17, 2005 5:00 AM

Subject: Re: Tubes!


I feel I owe you a thank-you note.  I initially felt a bit stupid ordering European tubes to be shipped from the US back to Europe (Netherlands), not very efficient of course. Anyway, I ordered my Pro Junior replacement kit on a Friday and to my surprise I got my tubes delivered next Wednesday... That's technically within 3 working days!

Of course I immediately replaced the tubes in my Junior, and I (finally) tried them out loud during band rehearsal this week. The sound was just lovely, exactly as it should be (and hadn't been for too long...)

So: thanks a lot! Great service at great price!

----- Original Message ----- From: "joe" <> To: "Eurotubes" <> Sent: Saturday, April 16, 2005 6:36 AM

Subject: RE: Tubes!

Hey Bob,
Just want to say that the 6L6GC's and the high gain ECC83s's are working wonders in my Traynor ( YCV ). The lead tone I get out of it with humbuckers is  incredible, very smooth and creamy, and the sustain!!! The clean channel is extremely clean and sounds really good with my Strat. Thank you so much for  helping me find the right tubes to pretty much nail the sound I was after.
Thanks again for everything,

----- Original Message ----- From: " Jason" <> To: "Eurotubes" <> Sent: Friday, April 15, 2005 10:00 AM

Subject: Re: Tubes!

I don't think I could say much more than "WOW". I loaded up my JSX with the E34Ls, ECC803, ECC832 and ECC83s tubes, and it's a whole new monster. After setting the bias and plugging her in, no more annoying buzzy distortion, just pure, growling, gain. I am VERY impressed with these tubes, such a DRASTIC improvement over the stock Electro-Harmonix and Sovteks that came with it. Thank you very much for the service and advice!

----- Original Message ----- From: Pim To: Sent: Monday, April 11, 2005 10:04 PM

Subject: Blues Deluxe Retube

Bob, I just had to e-mail you and thank you for the Fender Blues Deluxe retube. The 6v6 set really makes a difference in the overall tone and playability of the amp. Some how my amp was brittle and harsh with tone that could make your ears bleed and kill dogs. With the set of tubes you put together for me the amp now sounds great. The clean channel is bright, clean and musical with both my Strat and my Gibson flying V. Now I can actually use the overdrive channel. The gain channel is now dynamic with sound that can go from kinda clean when you pick light, to a sweet singing voice when you attack the strings. I tried a Boss overdrive for some classic rock sounds and it now can yield great harmonics. The bass is tighter and more usable and the treble is not harsh. I was thinking of selling this amp but now I'm keeping it. Thanks a bunch and keep up the good work.

Bob P

----- Original Message ----- From: To: Eurotubes Sent: Monday, April 11, 2005 6:08 PM

Subject: Tubes arrived.

Hi Bob,

I got my tubes yesterday and just wanted to send you a thank you.

My Bel Air has had "life" put in it. My amp is brand new, so I was using your tubes to replace brand new stock tubes.

Your tubes have opened up the amp, the clean sound is glassy, but not brittle, and the o/drive has gone from average to excellent.

The 88's for my cd player are equally impressive, I replaced tubes that cost 8x as much, and the jj's are an improvement.

Only 12 day's after ordering, here they are on the other side of the world!

That's excellent service and a superb product and price.

Once again, many thanks,

Murray Jacques,


New Zealand.

----- Original Message ----- From: Bruce W To: Sent: Thursday, April 07, 2005 11:43 PM

Subject: Blues Jr. retube - WOW!

Hi Bob,

Just had to drop you a line & let you know how delighted I am with the JJ tube set you sent me for my Blues Junior. They arrived in just two days, and I must say that I was quite unprepared for the amount of difference they really make...holy mackerel! Blues Juniors sound pretty good "stock", but those JJ tubes turn this amp into a genuinely scary little "tone monster"! Can't wait to take it out "live"! I'll be looking forward to retubing my other amps with JJ's as well in the near future. For a while now I had been contemplating the purchase of a fairly well known "boutique" amp, but it looks as though you've cost them a sale! Thanks again for a great product!


----- Original Message ----- From: Darrell  To: Sent: Wednesday, April 06, 2005 9:34 AM

Subject: Prosonic Combo re-tube w/JJ's by your prescription


By most accounts my Fender Prosonic(tm) combo has been idle as a backup amp for my Bogner Shiva(tm) combo. It paled in tone once I started playing the Shiva, well except the classic clean Fender channel was always good but flabby at volume. I have seen your site and heard of the JJ reputation but never tried them. By your recommendation I purchased the one of the "Kits" you assembled for this amp also opting for the tamer one. I did myself a favor and bought a dual bias tester from as well. The tubes came to NH in 2 days (very quick) and I wasted no time in installing them. I set the bias as recommended by the tool's written instructions for 6L6GC at 70% (430v plate current) (0.7*25/430 = .0407) translates into 40mA. The probe converts to read 40mV on my meter. (AB rectifier setting) (The amp was close as it was by the way).

So now I play the thing.....what?..where did this amp tone come from?! I can use my LesPaul in the neck position, distorted channel, and still have tone? Say it's so...dripping, greasy, ballsy, tone. Very cool. Now, I won't ever be Slash but I won't ever envy his tone anymore. The clean is less flabby and I can dig into it with my EC strat, neck position and have it bark back the best spank this thing has ever produced. The volume can now go past 3 and still maintain. The idle hum and noise is less than before too, another Very cool. The reverb is much more musical to me, less metallic sounding. Good job Bob, nice to see your passions at work isn't it?

This amp has always been a little monster and I always liked it but now I love it. My fingers hurt typing this because I can't stop playing my new toy. Thanks for the recommendation for my Shiva as well, I will likely follow suit in the near future.

Best Regards,


----- Original Message ----- From: Cef C To: Sent: Saturday, April 02, 2005 12:53 PM

Subject: Smokin' Tones from my Carvin MTS3212

Hi Bob!

Just a note to say this upgrade makes my amp roar!!! As soon as I plugged in, the difference was noticeable. To say "high gain" is an understatement...more like EXTREME gain is more like it!!!!! I'm so stoked, my next order is going to include the same pre-amp tubes plus the power tubes.

Thanks for your informative website and sharing your passion in the "quest-for-tone".


----- Original Message ----- From: To: Sent: Monday, March 28, 2005 4:58 PM

Subject: Marshall JCM2000 DSL401 Full Retube Kit


Hi there! I'm sorry I haven't got a chance to write you back about the Marshall DSL401 retube kit that I purchased from you a few weeks back. I was out of town and just got back yesterday.

The retube kit got here really fast (2 days!). I installed them last night and couldn't believe the significant improvement on the tone of my amp! Wow! What a difference! The JJ's sound absolutely amazing in the DSL401. I'm very happy with the results. The JJ's are great and they gave my amp the tone that I've been looking for. I give it a double thumbs up! Thank you so much!




----- Original Message ----- From: Jon Williams To: Sent: Monday, March 28, 2005 12:05 PM

Subject: JJ's and my Blues Jr.

Hi Bob,

I received the new tubes for my Blues Jr. on Wednesday, along with the new Jenson speaker I ordered. I insatlled the new speaker first so I could hear the change. Right away I was impressed. The speaker, a Jensen P12N, handles the high end of the amp much better. It sounded smoother and the lows sounded tighter. Next I installed the JJ's and fired up the amp. I must tell you that I am very impressed. I actually love the clean sound of the amp now. It is so much smoother and the "ice pick" in my ears is gone on the high end. When I turn up the pre amp gain on the amp it GROWLS. The natural overdrive of the amp is waaay better now. I am also amazed at how much more versatile this amp is. I can turn the volume down from 10 to 8 and the sound totally changes... down to 7 or 6 and it really cleans up. I can't believe I am getting this kind of sound out of a $400 amp that weighs 30 pounds. Along with my fulldrive pedal I can crank it up and get that Neil Young "exploding amp" sort of sound that I love.. It can sound so nice or so MEAN. Thanks again,


----- Original Message ----- From: James Strom To: Eurotubes Sent: Thursday, March 24, 2005 5:53 PM

Subject: Re: tubes!


Needed to get back with you and let you know the DeVille is a whole new machine now...Absolutely Awesome!!! With the High Gain Option #2 6V6s, it's picked up that little bit of edge I was looking for, and now I can drive it like I want to get great saturation without peeling the paint off the walls!!! It's a baby beast with a ton of creamy tone that I can still get to bite 'cha if I want it too!!!

Thanks again and again...I'm ordering another tube set as back-ups!!!

Jim Strom
Newly Born Fender HR DeVille Lover/Owner/Operator

----- Original Message ----- From: "Aroneous" <> To: <> Sent: Monday, March 21, 2005 3:40 PM

Subject: new tubes for my soldano hot rod 50

Hi Bob,
I'd just like to take this opportunity to thank you for giving my soldano new life. Although the tubes I replaced were all in working condition, the sound was a terrible, brittle, and harsh sounding ear drum splitting howl. Now the amp simply sings - thanks for matching the tubes and getting the order out so quickly!

----- Original Message ----- From: Chris Henthorn To: Eurotubes Sent: Monday, March 21, 2005 9:55 AM

Subject: RE: tubes!


I got the tubes is record time. ( Fender Hotrod ) The shipping was top notch. The installation was a piece of cake as well (This is my first time ever changing out tubes). The bias was also very easy to adjust. These new tubes sound superb. Thank you very much for all your help. \m/ you Rock!!!


----- Original Message ----- From: Anders STUDIO 3 To: Eurotubes Sent: Monday, March 21, 2005 9:53 AM

Subject: Thank you!

I have now tested the tubes I got from you, for my Mesa Quad preamp and Mesa Fifty/Fifty power amp. I wanted to test them live over a couple of gigs before I wrote you any feedback. All I can say is WOW! I liked my rig before but what a difference! Now it's much easier to get that bluesy sound from the clean channel and just use lighter picking or roll of the volume to get crystal clean. And for the rest of the channels (4 all in all) it just rock's going from crunch to high gain. More definition and no more muffled bass, I hit those overtones and controlled feedback at almost any volume. With the gear cranked up (large stage) I get goosebumps all over, I am overwhelmed. Better late than sorry and here you have a happy Swede that will look no further for his tubes, you and your service leaves nothing to wish for.

Thank you!

----- Original Message ----- From: "Laurence Elliott" <> To: <> Sent: Tuesday, March 15, 2005 9:28 AM

Subject: RE: Tubes!

Hi Bob
Just sending you an email to tell you how immensely satisfied I am with your tubes. Im on my first tube amp and this is my first re-tubing from the stock  mesa valves so I was a but skeptical. Damn they sound good though, given me the exact kind of sound i was looking for - i can now turn up the presence to full and not have any harshness and turn up the bass to full without any muddyiness, They even give me more gain and i can even hear every note in an open chord with the gain on 10. Made me love my mesa again (was getting a bit annoyed with all the harshness). Very sweet, warm, articulate, dynamic tube. Thanks a lot!
Thanks a lot

----- Original Message ----- From: David White To: Sent: Tuesday, March 15, 2005 8:27 AM

Subject: Feedback

Hi there,

Well I finally did the retube the other day, with the tubes I ordered and you recommended for my Fender Hot Rod Deville, and I have just returned home from my gig tonight the first real live test....I changed the ecc83s etc and the 6L6's to 6V6's... Basically I just wanted to say thanks, this puppy really sound fantastic..... I don't know that it is quieter like you said but I also understand the non-linear relationship between power:db........

I run a couple of different configs mainly either of a couple of Tele's,but also a Strat AM std with vintage noiseless made active with active boost.......I can tell you this thing is hot and when you wind in the boost.... the amp gets driven hard and truly truly sings.......

I also have a custom built Maton acoustic guitar (Australian Made guitar - as used by Tommy Emmanuel and Keith urban and many many others) which I run the piezo into the P.A. and I have a fishman rare earth hum bucker mounted in the sound hole running through effects and into the Deville..........

Prior to tonight I was not really happy with the sound I was getting running this through the Deville......was ok, but tonight it sounded truly amazing...............clean, clear, sweet full overdrive and the only thing I have done different is change the tubes.......... to JJ's that is......

anyway just a bit of a ramble, thanks for your suggested tubes their arrival and the new fantastic incredible sound my amp now produces....


Dave White

----- Original Message ----- From: Troy V To: Sent: Sunday, March 13, 2005 2:44 PM

Subject: my satisfaction

Hi Bob:

Just had an opportunity to re-tube my PEAVEY Delta Blues with your tubes( yea I know, its' been a couple of months but hey thats' what a wife and two small kids will do!).

Let me say this.....The amp sounds great, better clarity, dynamics etc,etc,etc, much better resolution and sound.

This PEAVEY is now ready to roll ( and rock for that matter).

Feel free to forward this to your buddy Roger at PEAVEY.


----- Original Message ----- From: Perry Anderson To: Eurotubes Sent: Saturday, March 12, 2005 10:23 AM

Subject: Re: tubes!

Hi Bob,

The tubes arrived on Wednesday, just fine. Put one in last night...( Vox Valvetronix AD30VT ) sure makes a difference compared to the tube that was in the amp, an Electro Harmonix 12AX7EH. The JJ has a much cleaner breakup, and better overall sound.



----- Original Message ----- From: "marty ussery" <> To: "Eurotubes" <> Sent: Saturday, March 12, 2005 7:56 AM

Subject: Re: tubes!

 thanks, bob. I love the jj 7027a's in my v4. Definitely better than the magnavox, dumont or sovteks I've tried. I'm done with eh and sovtek.

----- Original Message ----- From: Scott & Norma Alley To: Eurotubes Sent: Friday, March 11, 2005 7:09 PM

Subject: Re: Tubes!

Hi Bob,

I didn't have time to write back immmediately, but WOW! The retube kit for my Delta Blues sounds great!

Thanks for the quick shipping - from the left to the right coast in two days from placing my order. I immediately

popped the JJ tubes in and powered it up. The tubes sound great clean and overdriven.


Scott Alley

----- Original Message ----- From: <> To: <> Sent: Friday, March 11, 2005 2:18 PM

Subject: I Love it! My impressions!

Hello Bob,
I wanted to give you a very large THANK YOU! The new glass came last night (wow, 2 day turnaround order-to-door - Sweet!) and I couldn't wait.
I'm running a Peavey Classic 50-410, 1985 Strat Contemporay Std 22 (Bridge & Middle PUPs are Duncan HotRail dual coil with series/parallel switches, tone caps/wiring mods), and a 1968 Yamaha AE-12 Arch Top Jazz Box (Gibson ES-175 copy). I play mostly rock & blues and some jazz. Pulled down the amp, yanked the tube covers. Here is what I pulled out: V1 & V2 Electro-Harmonix 12AX7EH (Date Code 01 05) V3 Sovtek 12AX7 (Date Code 02 11)  V4-7 Sovtek EL84/6BQ5 (Date Code 02 11 also!)
Now, I swapped in your Rock Option Set V1/2 HiGain, V3 balanced, V4-V7 (#35).
I started with my 1985 Strat (Seymour Duncan HotRails with series/parallel switches) using the Clean channel and was blown away by the range of tone I was able to get! I went dry, no effects, one cord straight from guitar to amp. In parallel, the tones are thick and full, in series it sings without that "wash out" problem I had. My Strat (by nature all of them) is a little nasal in tone, not a lot of bottom end, but the amp pulls them out WITHOUT mush or boom, just full deep tight lows and great Strat highs without hiss or crap. Great rhythm sound. Almost like I was using a chorus effect, very nice!
Then I swapped to my 1968 Yamaha AE-12 Arch Top Jazz box! I figured that the Rock Option tubes would be great for my Strat, but I might lose a little when playing the F-Hole for Jazz/Blues. Wrong! The Clean channel was GREATLY enhanced. Mids down, Lows up and tight, highs very bright and sweet without shrill/gritty sound. It is VERY full sounding. I was VERY impressed by the change in voice and the clarity. It sparkles and is very sensitive to any touch on the strings as all with a mind-blowing dynamic range that was not there before. It completely surprised me!
After a bit, I went back to the Strat and Lead channel (dry again, guitar to amp direct). Then I played with the amp settings. WOW! I actually had to turn the bass down, could turn up treble without shrill noise and moderate hiss. The Presence really works now! Before, it merely adjusted the hiss level. The Preamp has a very predictable breakup that breaks cleanly, rich in harmonics, more bottom end than I thought the 4-10s would give! As you dial up the Preamp, it goes from bluesy breakups to harder crunch (not distortion, just that sweet tube, even-harmonic overtone) cleanly, consistently. It has a much fuller, almost darker tone than ever (kinda Marshally-Mullard) but can cut through with a clarity I did not think was in this amp!
I played for about 2 hours more and had to be pried off the damn thing! I never hooked up anything else, just the cord from the guitar to the amp. I'm sure I will be cleaning out my collection of stomps and effects now. Many are no longer needed, the amp does it all! I will be taking this amp to our next band practice, and I am sure it will be the talk of the evening! The other folks are going to be blown away! This "little" Peavey was already pretty well graded in the band room with a Marshall JCM800 50W Lead/1960AB, and older Fender Princeton Deluxe, and an older Ampeg 30W Combo. In my opinion, the Classic 50-410 is a good balance of "portability" and sound quality. Now, it will still be as portable with a much larger-than-life sound that will rival the Marshall for tone capability.
I am more than satisfied or happy, I'm sold! Your business is bound for greatness. You have superb delivery, the personal "small shop" touch is the GREATEST (like your e-mails), prices are nothing compared to what you could pay and still be wondering what you are getting, and the tubes are the bomb! What else could ANYONE want?
Thank you very much. I'm sure to be sending some folks to your website as well as never going anywhere else for my Peavey needs. You lived up to every one of your claims and then some on top!
You have my permission to post this as you see fit. My endorsement may not mean much, but as a very happy camper, you can use me as an example. You rock, the tubes are King, your biz is great, the sound from my amp is killer!
My thanks, always,
Dan Dougher
Ramona, California

----- Original Message ----- From: "Louis Chester" <> To: <> Sent: Thursday, March 10, 2005 7:38 PM

Subject: Re: Peavey 5150 combo - ALL stock.. until it was turned into a snarling beast

Hey Bob,
Got the tubes a few weeks ago... Didn't' take long to realize that this was not the same tired sound I was used to. Even with the distortion just cranked, you can get a significantly cleaner sound just by turning down your guitar volume, taming the beast. Turning it up however is another story altogether. I thought for sure that having taken the "high gain" option I'd be getting a ton of feedback the more pre-gain I applied, but that is definitely not the case. Combine that with some extra juice to the power tubes, and the vibrations created are just ridiculous - a sonic punch in the face - it's fantastic.
All I can say is that I can't believe the difference and it's been hard to keep from playing it ever since.

----- Original Message ----- From: "Chris Holtz" <> To: <> Sent: Thursday, March 10, 2005 4:55 PM

Subject: ECC803 Performance

Hello Bob, I got the tubes 2 days after ordering them. Thanks for getting my some of these great tubes to me on such short notice. I have 2 amps I use for testing: a Fender Bronco/Vibro-Champ and a high-gain monster that I built called Jezebel. First into the Champ: GREAT clean tone, total classic rock and classic country. Compared to a diamond base Telefunken in the same amp I heard a sweeter, more fluid tone from the JJ ECC803 as compared to the hard metallic snap of the Telefunken. The JJ ECC803 has a broader sweet spot. I notice this with ALL of the JJ tubes, a very large and predictable sweet spot of compression leading into saturation. Clean tones have a liquid sparkle and driving tones have a singing sweetness.

Next into Jezebel. Jezebel is a 2 channel monster with a classic Fender/Marshall clean channel and a modern Soldano/DualRect/5150 high-gain channel. Again: the clean tones are sweet and liquid, driven tones on the first channel are classic rock & honky-tonk. On to the High-gain channel: WOW...even at HIGH GAIN I can still heard the attack of the note on the string. I can hear right through the saturation down to the core of the string. The sound was soooooo goood I was into a total shred. Again that liquid-fluid transparent sweetness even at HIGH-GAIN settings.

I just have ONE question: WHEN CAN I GET MORE JJ-ECC803's???

Peace, Chris Holtz: Toob Freek, Custom Rock Hardware


----- Original Message ----- From: "Good Jason" <> To: <> Sent: Thursday, March 10, 2005 9:47 AM

Subject: Awesome tubes!! ( Triple X )

Hi Bob,
Just wanna leave a loud and proud "Thank you" for the great tubes. With the JJs ( 6L6GC's and pre's ) in place of the Sovteks, I can uctually use the EQ and gain knobs in a sensible manner. The tone is much better, and I swear it picked up a few decibels in the process. The mids are less harsh, the highs are less buzzy and more pronounced without being overbearing, and the lows are nice and tight. Even with the ECC832 in the V2, I still get crazy gain when I crank the knob for some Sabbath or Metallica, but can back it off on another channel to do some Clash covers. All in all, it woke this Triple X right up. I'll be sure to contact you for more tubes in the future. Thanks much!

----- Original Message ----- From: "Gary Diamond" <> To: <> Sent: Thursday, March 10, 2005 7:51 AM

Subject: Re: Tubes!

The tubes arrived today in the morning post. The amplifier in question  (Orange AD30R) has been revalved/given a service as the customer requested and now sounds fantastic - I think JJ electronic EL84s are up to the standard of the old Mullards! And your service/turnaround time has been professional as ever - including a business card and sales invoice with the tubes is a lovely touch and is handy for keeping our business records up to date.
Compare this to Marshall and a few other companies we regularly deal with at Andy's - in Marshall's case we have been waiting for a transformer order for  over 2 weeks, 5 phone calls later it's still not here! You put them to shame because you're not even in the same country as us yet you are MUCH faster!
I wish you well and look forward to doing business with you again in the future.

Sales & Repair Manager, Amplifier Division
27 Denmark St
 +44207 916 5080

----- Original Message ----- From: D. Bowles To: Sent: Tuesday, March 08, 2005 4:53 PM

Subject: My new JJ's

Hi Bob,

A quick note about my recent JJ tube purchase, these tubes are fantastic!!!!!!!!!!! My 5150 combo was sitting around collecting dust because it was so over the top for gain in my current musical situation, and it sounded like cardboard! I was using my JCM 900 or my Peavey XXL but the tone was not quite there, enter JJ's with the low gain option. This amp is a whole different animal now!! I sounds awesome. This is the closest I've ever come to getting the tone I hear in my head out to an amp. Thanks for taking the time to listen!! I can honestly say that I will NEVER EVER buy another brand of tube!! These tubes are dynamic, full of tone, and even smell good!!!!! Thanks again and I will be buying JJ's for my JCM 900 soon!

Donnie B.

----- Original Message ----- From: "richard harpstrieth" <> To: <> Sent: Tuesday, March 08, 2005 7:33 AM

Subject: YCV20

I received my new tubes for my Traynor YCV20 and WOW what a difference! I sure didn't expect such a big improvement and such quick service. Thanks and keep up the good work.

----- Original Message ----- From: David Woodhouse To: 'Eurotubes' Sent: Sunday, March 06, 2005 1:04 PM

Subject: ECC803 review

JJ Tube Review

First of all I have been playing guitar for about 21 years and have been a tube amp user for most of that time. I have tried and used every current production tube made today. Many of them have their high points and some are great for many different applications. But I am really impressed with the JJ preamp tubes, especially with the new ECC803.

First of all I was not initially a big JJ fan. I really liked their power tubes after being introduced to them from Groove Tubes many years ago. But I really did not like their preamp tubes at all. All the JJ preamp tubes I purchased were from another vendor that charges a premium for “tested and graded tubes”. And I had failures, microphonic tubes right out of the box. To be fair tubes are fragile and can be damaged easily. But the high premium cost verses for what I experienced was enough for me. So I basically formed an opinion that the JJ tubes were poor.

For about a year I kept hearing raves about the JJ preamp tubes and that Bob from Eurotubes was the man to get them from. I resisted because of my past experiences with the re-branded JJ tubes. Well after not being totally satisfied with the current tubes I was using, I decided to order some JJ ECC83’s from Bob at Eurotubes. First of all Bob is great with customer service and is a real pleasure to do business with.

The Tubes: Well I couldn’t believe these were the same JJ’s that I had used from the past. They sounded great. Great bottom end nice mids and good highs as well. They were high in gain but not fizzy or less defined as other high gain tubes. I was sold, if you want JJ’s, get them from Eurotubes. I really like the fact that they don’t “color” the amp but enhance the already tonal characteristics of the amp and make it sound even better.

Well I just received some of the first production run JJ ECC803 preamp tubes from Eurotubes. They are a long plate tube type and resemble a Telefunken in design but are slightly larger. As for the sound, well I will say I am very happy. They are very tight and clean on the bottom end with no flub or flabbiness. The mid range is warm and more pronounced than the JJ ECC83’s. The highs are better and clearer and sweet sounding. These are not as dark sounding to me as the ECC83’s but they are not bright either. I would put them in the middle as far as darkness and brightness is concerned. I really am impressed with the harmonics and musical tone of these tubes as well as the clarity even at high gain settings, no fizz or loss of definition at all.

I am using a high gain ECC83 in V1 and the ECC803’s in V2 and V3 of my Peavey JSX Joe Satriani Head, and am very impressed and satisfied with these tubes. My amp has more tightness, harmonics and all the fizz and high end noise is gone with these tubes. I believe the JJ ECC803 is a great new alternative for those looking for a great preamp tube. And the prices and service are second to none from Eurotubes.

Thanks Bob for being the best JJ tube vendor period.

----- Original Message ----- From: Robert Ring To: Sent: Sunday, March 06, 2005 11:06 AM

Subject: Galaxie 10

Dear Bob,

OK, now I see what the folks on the Peavey forum are taking about. I got the tubes on Saturday. First I put in the Ecc83s. It smoothed things out, just like I asked for. It gave me a louder clean tone, more useable overdrive, and took some of the harshness out of the treble end and became rounder. Impressed with that tube, I went for the big guy. Another improvement. The amp bass response became less farty and was able to play louder, with useable tone. You hit the target right on. I am a believer, and will be re-tubeing my C-30 soon. I'll be calling you on that, you can be sure. Thanks for rendering a harsh little beast with lots of potential into a sweet sounding little tube amp. It's nice to meet someone who knows what the hell they're talking about.

Thanks again,

Bob Ring

----- Original Message ----- From: The Most Rev. Kenneth J. Canterbury, Ep.Gn. To: Eurotubes Sent: Friday, March 04, 2005 7:35 PM

Subject: 6V6S


I want to thank you for your quick shipment and some great tubes! I put them in my AB165 Bassman, and didn't even need to adjust bias...they sound WONDERFUL!!! With my Les Paul..thick, classic '70's rock..WOW... With my Strat...Incredible..forget the tube screamer..Stevie and Jimi were looking down from heaven with big smiles :-) ...with the just may be my favorite guitar tone of all time. These 6V6S tubes should be on every bassman's owner list as a "MUST CHANGE".

Thank you once again :-)


----- Original Message ----- From: John Graziano To: Sent: Monday, February 28, 2005 12:24 PM

Subject: Fender Hot Rod DeVille with option #2


I just wanted you to know I couldn’t be more pleased with the sound of my Fender Hot Rod DeVille after installing the blues option #2 for HRD amps ( JJ 6V6's and ECC83S's ). The amp seems to be wired into my brain, it’s just so dynamic, and alive. The overdrive sound has gone from fuzzy, and brittle to warm ZZ Top-ish smooth, with just the right type of snarl I could not get from any pedal. When the clean channel is cranked its “Woman Tone” while remaining sweet ,and glassy when the guitars volume controls are backed off. Thanks for providing us with options like this.


----- Original Message ----- From: james hartman To: Eurotubes Sent: Saturday, February 26, 2005 6:52 AM

Subject: Re: Tubes!


Thanks for the speedy service.

I thought I'd offer some comments on the JJ 6V6s I've been using in my '65 DR for about 9 months now. I really was skeptical when I read the hype on these tubes, and some ridiculously enthusiastic independent reviews, but these things are amazing. My DR runs real hot, even for a DR, but is incredibly touch-responsive and sounds exactly like the DR everyone wishes they owned. It was eating pricey NOS tubes like candy - but the JJs seem to be nearly indestructible. And, they sound great. Very cool!



----- Original Message ----- From: Jamey Graham To: Eurotubes Sent: Friday, February 25, 2005 5:36 PM

Subject: Preamp Tubes

Hello Bob,

Just wanted to let you know I received the PreAmp Tubes yesterday ( High gain ECC83S's ). I Installed them into my Marshall JCM 800 last night and WOW.. what a difference. A BIG Thanks!!! for such GREAT SERVICE and FAST Shipping also GREAT TUBES at GREAT PRICES!!!

Jamey Graham

----- Original Message ----- From: <> To: <> Sent: Friday, February 25, 2005 8:14 AM

Subject: thanks

Just wanted to follow up with you about my JJ purchase. (ECC83 S - 12AX7)
I retubed my Laney LH50R 50-watt head. Sounds great! These tubes added a much more dynamic/cleaner tone, but kept the all the characteristics that i love about my amp. Also, the tube breakup is much better. The gain knob feels more precise than before. One little twist makes a difference now. Just wanting to let you know you got a good thing going on. I prefer to buy gear from the "little guys" instead of the corporate bullies who don't really care about the important things about music/tone. Thanks again!
Brett Francis

----- Original Message ----- From: "Brian Jones" <> To: "Eurotubes" <> Sent: Tuesday, February 15, 2005 7:35 AM

Subject: Holy smoke!!!!!

 Wow. That's all I can say. I just received your hi-gain re-tube kit for my Traynor YCV40 and I can't believe the difference in tone and sustain compared to the stock Sovteks that came with the amp. This amp truly sings now. Every guitarist has that all -elusive perfect tone circulating around in his/her head. The problem is most never find an amp that can put it out there. After slapping these new JJ's in the Traynor, I am in tone heaven. I have that sound that I have always yearned for. Thanks for making me a believer in you and your tubes.

Great customer service combined with superior products and reasonable prices guarantees that I will return to you for all my tube needs. Kudos to you for running a business the right way. Love, peace and chicken grease!
~Brian Jones
Gainesville, Fl.

----- Original Message ----- From: Alan Castillo To: Eurotubes Sent: Tuesday, February 08, 2005 9:31 AM

Subject: Re: Eurotubes Order Confirmation

Hi Bob,

My tubes arrived on friday, sorry i couldn't write before. WOW!, i think that's the word that resumes everything!, the sound of my deville changed so much, lots of harmonics, no piercing highs, and i love the natural drive that i can get now. my blues junior lost that boxy sound, the bottom end is so much better, and the harmonic content improved a lot too, and it gets into overdrive way smoother. Thank you very much, and i look forward to do business with you again,



----- Original Message ----- From: To: Sent: Monday, February 07, 2005 10:40 PM

Subject: Recto High Gain kit/GZ34's

The new glass arrived today. All I can say is unbelievable. The high-gain ECC83S's work well beyond my expectations, delivering that great Mesa "wall of slam" with more defined bass and mids, plenty of sizzle (not buzz), and more rich distortion than my brand of metal will ever require. Clean channel is also improved (like I bought a triple-rec for the clean channel yeah right), warmer and more musical sounding at the verge of breakup where I normally keep it. Overall just a touch darker than the "Russian 2" pre's that were in there.

What I really want to know is why doesn't Mesa use the GZ34/5AR4 rectifiers stock? Now I have that sweet singing tube-rec tone for soloing, and a rhythm tone that doesnt turn to mush during fast palm muted parts. There also seems to be much less of a drop in volume between the diode and tube recto's. So here's a big "atta-boy" to Bob and JJ. I'll definately be back for my next retube.

----- Original Message ----- From: "Prasanna" <> To: "Eurotubes" <> Sent: Monday, February 07, 2005 7:02 PM

Subject: Re: Tubes!

 Hey Bob. Just wanted to let you know, I got the tubes and swapped out the whole set of stock Groove Tubes. ( Fender Hot Rod Deluxe ) I must say, the descriptions on your site are absolutely correct! No matter how I EQ this thing I get great tone out of it! Before it was extremely difficult to EQ this to get good tones out of it without it getting muddy or flabby in the bass or icepicky in the high end. It took a lot of patience and a parametic EQ in the effects loop to smooth things out. Now I don't even need the parametic! Deep, full bass, sweet mids and sparkly treble is what comes out of the JJ's! And the drive channel sounds so much better now; very strong and clear now. Thanks for the set. I know where to come next time I want tubes.

----- Original Message ----- From: "Corey Berse" <> To: "Eurotubes" <> Sent: Friday, February 04, 2005 8:51 AM

Subject: Re: Tubes!

Hi Bob-
Just wanted to thank you for the tubes. Put them in the traynor ( YCV 20 ) last night and played for hours because it sounded so amazing. This is my
> first all-tube amp and I decided to retube it based on many reviews i've read. I didn't realize how pronounced the change would be..I feel like I traded the amp in for a brand new one. I was really unimpressed with the drive channel before.. but now..its exactly what I was looking for..actually, its better than I was looking for! Thanks again for such great personalized service. I know exactly who to come to next time I'm looking for tubes.

----- Original Message ----- From: "Richard Coibion" <> To: "Eurotubes" <> Sent: Friday, February 04, 2005 7:14 AM

Subject: Re: tubes!

Got the tubes (Marshall DSL full retube set) for my Laney AOR Pro-Tube 100. All I can say is WOW!!! I expected a difference, but not this drastic (in a good way).
The previous tubes in it were Groove Tubes E34L's, a Mullard cv4004 in v1, Chinese 9th gen in v2 & 3, and a Mullard ecc81 in the phase inverter. The JJ's I got from you just smoke the old tubes. My amp is now substancially quieter, warmer & more 3-D sounding.
I know where I'll be doing my tube shopping in the future!!! I hope to see Eurotubes around for a long time... Thanks
 Richard Coibion

----- Original Message ----- From: "Nathan José Richardson" <> To: <> Sent: Tuesday, February 01, 2005 9:18 AM

Subject: RE: Tubes!

I just wanted to e-mail you back to let you know that the tubes are amazing!  I expected some difference, but the harmonics and distortion that I can get with them now amazes me. The Bravo amp now sounds terrific no matter how much gain is pushed through it, and my H&K tubeman finally sounds like I had  always imagined it could. It no longer compresses to mush with high gain, and the other two channels sound much sweeter than they ever did before. the harsh highs disappeared.
Thanks so much, you've earned a loyal customer,

Nate Richardson

 ----- Original Message -----  From: "Joseph M. Corey" <> To: "Eurotubes" <> Sent: Monday, January 31, 2005 4:52 PM

Subject: Re: Peavey Classic 20
Got a replacement set for Classic 20 from Bob at Eurotubes.

And it is...


The cleans are less middy. Turn up the mids now and the mud doesn't happen. Cranking up the gain gets rid of the fizz on the top end and gets us very nicely into Marshall territory.

The key difference with the replaced tubes is the extent of articulation. Very very different. Clean, cranked, and clean + pedals going through it are really very very nice now. The Analogman SD-1/808/silver is very good through this amp clean. So a complete JJ set (2 ECC83S's and 2 EL84's) really made this a great amp. Now, with a different speaker, it may become totally killer.

As I read reviews on the Eurotubes board last night, anyone who had any Peavey Classic was just raving about the differences. That's when I knew I had done a good thing. Tonight I heard it.

----- Original Message ----- From: Golgotha Games To: Sent: Monday, January 31, 2005 8:38 AM

Subject: What did you do to my amp?

I purchased a Carvin MTS three years ago after being a dedicated solid-state player. I used Crate Solid-State amps, please don't laugh, for someone on a honest starving musicians budget it worked fine. At one time I was able to purchase a Blue-Voodoo head, not the new ones but an original, man it sung like nothing else. And it had wonderful glowing tubes. Things happened and it had to be sold, much to my dismay. Short-story-Long, I got the Carvin MTS after being a dedicated Carvin guitar player I decided it was time to make myself a Carvin amp player. I went to the local Carvin shop tried the MTS and Legacy and the MTS was fatter and crunchier and had much more sustain, and was a lot cheaper without the Steve Vai name on it. I am sure with the right tubes the Legacy would scream but the stock tubes, well-frankly, suck.

For about two months the Carvin MTS did the job but I could not find the "sweet" spot. After playing it for a while I noticed that there wasn't enough sustain for my taste, especially having been a solid state player for all of my guitar playing career. I did all I could and settled on the fact that it was "the tube sound" and I had to get used to playing a sustainless amp. I made a mini boost last year and I was able to get a lot of the punch that I needed and it gave me the sustain I wanted. It took a while but I finally started to become satisfied with the tone.

I decided to get new tubes since I had the old tubes for close to three years. I had been eyeing Eurotubes for quite some time and decided to go with them. I Read the articles and rebuttals about the integrated tubes and decided to go for it to see what would happen. I got the Carvin Integrated Quad - High Gain package shipped VERY QUICKLY from Bob, and anxiously put them in my amp. I let the tubes warm up while I took out my guitar flipped the standby switch on and the amp began to smoke! I mean scorching leads, crisp and clear, not muddy and flat. No one was home so I was able to play with the volume a bit. The old tubes would stay at the same volume with any setting from 6-10. The new tubes have volume control all the way up to 10! This has been foreign to me since day one, I just thought it was the nature of a tube amp, man was I wrong. THIS AMP IS NOW VERY LOUD!!! I usually turned the gain to about 5 and used my boost pedal to get the crunch and sustain I needed as the old tubes were very noisy at any gain above 7. With the new tubes I turned up the gain to 8-9 and it was surprisingly quite and it had more sustain than I thought possible in this amp. I cannot tell you how great it is to have a crappy amp turn into a crunch monster.

Thank you Dr. Bob for the amazing surgery that you did on my amp. I can tell anyone that if they have a sick sounding amp and need a doctor to go to Dr. Bob and he will prescribe the remedy to make their amp alive and well! Thanks Again!

In His Grip,

Brent D. Wisdom

----- Original Message ----- From: "Max Play" <> To: <> Sent: Sunday, January 30, 2005 9:03 PM

Subject: Re: Tubes!

Hey Bob.........

You are the man...!!  I got my tubes Saturday(29th), that was fast bro! I loaded the JJ's into the DSL and they worked great and sounded much, much better.
(..did I mention they sounded better! :)  Excellent packing job also, and that is especially appreciated.
Bob, thank you much for everything. You can be sure I will also be a great "word of mouth" customer. Will be ordering a complete set for my main 100w very soon.
My very best to you, and thanx again...AnT

----- Original Message ----- From: Bever, Jerry To: 'Eurotubes' Sent: Sunday, January 30, 2005 3:10 PM

Subject: RE: Anchorage - Gott'em

Bob, it's been a great weekend! I put the new tubes in and have been playing and letting them cook all weekend ( Peavey Delta Blues ). I can't believe the sound I'm getting from that amp. The overdriven sound and response is extremely smooth. It literally sounds like I have new guitars also! After hearing and feeling this sound I'm not going to get an attenuator, I've just got to find my wife a hobby so I can get her out of the house on a regular basis so I can crank it up!

Thank you so much for what you do and for your info and presence on the net. Without that I would have never had this sound. You've got a fan.

Take care,


----- Original Message ----- From: Thom Rogers To: Eurotubes Sent: Friday, January 28, 2005 12:29 PM

Subject: Order 000000 1485 - Plugged and played

Hi Bob,

Got my new tubes yesterday and slapped them right into my Blues Junior. What a difference !!

The overall sound is much richer now and the sustain is vastly improved. I only got to play through them for a half hour so I'm sure I'll notice other, more subtle, improvements as I play more. I'm glad it's the weekend because now I'll really have time to enjoy the new sound. Mark me down as one more satisfied customer.

Great service, great tubes, great prices.


Thom Rogers

Larkspur, CO

----- Original Message ----- From: John & Mary Wright To: Eurotubes Sent: Friday, January 21, 2005 10:09 AM

Subject: Re: Order Number 000000 1396


Got the tubes yesterday ( JJ ECC83S's and EL84's ) and put 'em in immediately. What a difference! The Blues Jr. is running much quieter, and the sound -- the amp sounds better than when I bought it.

Thanks. You definitely have a customer for life.


----- Original Message ----- From: "Michael Clavelli" <> To: "Eurotubes" <> Sent: Wednesday, January 19, 2005 3:10 PM

Subject: Re: Tubes!

Hi Bob,
I just wanted to say thanks for the tubes and for a hassle-free exchange of business. My Legacy always sounded good, but now it sounds better than ever. And so warm, too! I barely need any bass now (not that that's a bad thing). My hat's off to ya!
Oh yeah, and if you're keeping score, the power tubes that used to be there were Electro-Harmonix EL34s and they were pulling 118 watts. My new JJ E34L tubes are pulling 123 watts or so. I dunno, something the service guy said.
Thanks again,
Chicago, IL

----- Original Message ----- From: Russell Wagner To: Eurotubes Sent: Wednesday, January 19, 2005 10:23 AM

Subject: Re: Tubes!


I must say, the high gain set of tubes that you sent me for my Peavey 5150 combo sound better than I had expected.

The difference is amazing. It truly has the fullnes of a half stack now. Before I installed the JJ tubes, I normally miked my amp to be able to get a fuller sound along with a bit more tone shaping capability.

No more! It sounds great by itself. With the old tubes, you really had to work them hard to get a half decent tone. The JJ's produce a good tone immediately, and it only gets better the hotter they get. JJ tubes produce a thicker, fuller, harmonically richer sound. In the 25 years I have been playing guitar, this IS the best sound I have ever achieved from any rig I ever had.

My wife will never get me away from my guitar again! I can't thank you enough Bob, for the excellent product and the outstanding service. You have made me a long time customer.

Russell (I have tone!) Wagner


----- Original Message ----- From: matto To: Sent: Tuesday, January 18, 2005 12:47 PM

Subject: integrated quads

Bob, i've had my triple XXX head set up with your integrated quad set since april 2004.I took them out and put the original sovtek 6L6's just to remind myself how it sounded with them in. I can't tell in words how much better it sounds with your integrated quads!!! I haven't had any trouble of any kind.


----- Original Message ----- From: SShane To: Sent: Tuesday, January 18, 2005 2:29 PM

Subject: Thanks again Bob

Bob, My wife purchased a quad of JJ e34l’s for my Peavey XXX for Christmas. I waited a few weeks to email you because I wanted to make sure I was as happy with them as I initially thought I was and that they wouldn’t blow up my amp like Roger at Peavey says. Well I am happy to report that I like my amp even better with the e34l’s than I did with the 6l6gc’s I had purchased from you last year and my amp is still working properly. It amazed me how much these warmed the amp up and surprisingly made my clean channel a lot better as well. Just wanted to write a quick note to thank you for your exceptional customer service and support.

Thank you

Shane Siegle

----- Original Message ----- From: Thomas R To: Sent: Thursday, January 13, 2005 4:40 AM

Subject: WOW !

Greetings Bob,

I would like to thank you for making my already great sounding amp ( Traynor YCV40WR ) so much better.

What a difference in tone clarity and sustain, overall a much more balanced sound.

I look forward to more business with you, keep up the great work.


----- Original Message ----- From: "Steven Frank" <> To: "Eurotubes" <> Sent: Tuesday, January 11, 2005 6:00 PM

Subject: Re: Tubes!


First off, you are the man. Im soon starting up a band that will more than likely become famous and id like to strongly support JJ's. Anyway, once i got those tubes, i played from 10pm til about 3am straight. The sustain, the enhanced pick dynamics, the flexibility of all three channels, the actual now usability of chan 1, the killer gain....

I cant thank you enough for making this all possible. My amp is like a screaming hell beast now. You can use this
tesimonial if you want. I am no way affiliated with Bob OR JJ/Tesla. The simplicity of the install was entirely more than worthy of the new amazing tones i can get out of my Triple Rec ( loaded with an Integrated sextet and the high gain front end ). It turned from a cold crap sovtek doorstop to creamy 'satriani meets satan' beast. I love the enhanced sustain, the amazing new responsiveness when i switch channels, the high high high gain, the chime of the JJ's, and the warmth added to every aspect of the amp. I dropped these tubes in an WHAMO! i didnt even have to touch a setting, and my amp sounded like something that i dream of in my mind. I havent been playing long but i more than appreciate the tones that Bob and JJ have made possible to me. The sonic possibilities are now endless rather than restrained for this amp.

I am a sold out lifetime customer.

Thanks Bob!

----- Original Message ----- From: McLaughlin, Ed  To: Sent: Tuesday, January 11, 2005 7:34 AM

Subject: Integrated Quads Rock

Hi Bob

Happy New Year and Holidays to you and Yours!

After biasing ( Carvin MTS3212 ) the whole combo rocks with sweet creamy ripping tone!

I LOVE the Integrated Quad you sent me ! They rock like nothing else !

ESPECIALLY when I use the external 4x12 cabinet ! WOW !

Everyone that's heard me LOVES my tone, thanks to you.!


----- Original Message ----- From: JnyK To: Eurotubes Sent: Monday, January 10, 2005 10:03 AM

Subject: Re: Tubes!

Hey Bob:

I got the tubes last Friday night, did the install, and waited 'til Saturday AM to crank it up. The amps sounds MUCH different than with the originals ... I'm quite pleased. The overdrive channel(s) is where I hear the biggest difference. Prior to the tube change, there seemed to be a limit as to how much useable pre-amp gain I could dial in before things just sounded out of hand. Not so with these tubes. As I mentioned in my initial note, I've only had the amp (Traynor YCV20WR) for a few days and was contemplating a return as I had already achieved a fairly decent sound using my Boss GT-3, Tech 21 Power Engine, and FullDrive2 pedal. After changing the tubes, I've decided to keep this new amp and keep the other stuff as "back-up."

Thanks again!!!


----- Original Message ----- From: "Tommy" <> To: <> Sent: Friday, December 31, 2004 1:28 PM

Subject: Another Review

Thank you, Thank you, Thank you !!!!!!!!! YOU ARE THE MAN. I just popped the High Gain package in my Traynor YCV 40 and BAMM!!!!! IT F'N ROCKS !!!!!

I heard clips of this amp on a website and liked them. The amp sounded great. I looked around and got a deal on e-bay for $450 including shipping. After reading some reviews, I thought it was a steal. So, I bought it without actually playing through it. When I received it, I plugged in. The clean channel was sweet but the distortion channel was ugly. It sounded muddy, brittle, and lifeless. I was really bummed. Some reviews also said that changing out the tubes would turn it into a new amp. I was praying that it would. So, I contacted you, bought the suggested package and now I'm in love with this thing. It's well constructed, LOUD as hell and it has a Fendery clean with a Marshall like crunch. The clean channel is now even warmer than it was when I originally plugged into it.

Here's the kicker............tonally, this thing can do it all. I've owned Marshalls, Trace Elliotts, Fenders, Crates (I don't like to admit that. LOL) as well as a few other amps. Nothing can touch this thing under $1000 bucks. Can you tell that I'm excited? Man-O-Man, those JJ tubes just kick A**. It's coming with me for a test ride tonight. No better time than New Year's Eve to break it out and break it in. Thanks again, Bob. You rock, my friend. Happy New Year to me.
Tommy Benzinger
(Lead Vocals & Rhythm Guitar for the band "YOUR MOM")

----- Original Message ----- From: Jonathan Gordon To: Sent: Wednesday, December 29, 2004 8:43 PM

Subject: praise brotha...PRAISE!


I dropped a hint for my pop to order my ass some JJ E34L's for my Carvin MTS. So on X-Mas there they were. Beautiful...I love tubes. I dropped those puppies in...BAM! The sound is sooo much warmer and thick. Simply lovely. I was diggin the sound. Then, the other night when I played with band....un-freakin' believable! The guitar mixes so well with the rest of the band now. For some reason the drums were much more intelligible too. I think perhaps the frequency the amp was occupying before was takin' away from the cymbals. rock...JJ tubes rocks...and now my Carvin rocks even more. Man...why the hell don't amp come stock with these meanies in them?

So Stoked,


----- Original Message ----- From: "Pierre Veronneau" <> To: "Eurotubes" <> Sent: Wednesday, December 29, 2004 6:14 PM

Subject: RE: Dual Rectifier Mesa Boogie

I just read the article from Roger at Peavey.

As you know, I used your integrated quad in my Peavey XXX combo 2X12 and used two ECC832 to tame the gain.

The original EL34s from Peavey were fine but the gain on the amp was useless after 5. The reverb sounded very good but the clean channel would break up too fast. Replacing the EL34s by 6L6s increased the headroom but the clean channel sounded dry and lifeless.

After installing the integrated quad and replacing the preamp tubes including 2 ECC832, the amp had a better clean sound, a bit more headroom, but still had enough of that rich EL34 sound left to make me happy. The ECC832 allowed us to control a smoother gain curve and made the gain knob actually usable from 1 to 10. This decreased the preamp noise a bit too, noticeable in the living room, but not really on stage.

This XXX combo was a very good amp, out of the factory, but for the little extra money involved, your tubes made it into an excellent performer with a bit more tonal variety.

The retubed amp performed flawlessly for nearly a year before we sold it.

I always appreciate your instructions and recommendations. You always provided us with appropriate information an never pressured us into buying anything from you.

Keep up the good work,

A satisfied repeat customer,

Pierre Veronneau

----- Original Message ----- From: "Pierre Veronneau" <> To: "Eurotubes" <> Sent: Wednesday, December 29, 2004 11:45 AM

Subject: RE: Dual Rectifier Mesa Boogie

 Hi Bob,
We put the tubes in the Dual Rectifier and were pleasantly surprised. The clean channel has a lot of headroom and is a lot "richer/fatter" than before and is actually usable. The gain channel is massive and has tons of low ends while the highs are not piercing but very "audible". The biggest difference is that the volume has not gone up much, like you said, more headroom instead, but that the sound cuts through the rest of the band like a knife without being ear piercing. It's more like a blanket of sound.
 The other improvement is the response by the tubes to the guitar volume and the pick attack. Very fast response and very wide range of sound by playing with the guitar volume and the pick attack. Very very cool!!!
The only issue is the amp with the original Mesa tubes was handled quite well by the Marshall 1960A cabinet. With your KT88s, GZ34s and ECC83S, the cab is not handling the low ends very well. We tested a Mesa Boogie 4X12 with 4 EV12L black shadows and a VHT fatbottom 4X12. Both cabinets make the amp sound even more loud/massive/deep.
My son is very happy with the new sound. He can get the Blink 182 and Sum 41 sound variations just by playing with the guitar volume and can still get the Metallica sound.
All in all, this is an awesome upgrade.
Pierre and Patrick Veronneau

----- Original Message ----- From: JON NELSON To: Sent: Monday, December 27, 2004 3:11 PM

Subject: Tube-a-licious!

Bob -

Just a quick note to thank you for hooking me up with the J & J Standard Re-tube Kit for my Peavey Classic 30.

Your recommendations were spot-on, and I could not be happier with the incredible tone that I am now getting from what used to be my least-played amp. The new set of J & J's, coupled with a new Celestion Vintage 30 speaker, have made MY SOUND the envy of our jam-night crowd. Creamy sustain, delicious break-up, and smooth, growly lows have replaced the brittle, squawky, AM radio-ish bark that was, unfortunately, the previous calling card for this amp. The most beautiful thing about this whole "transformation" is that all of this wonderful tone is achieved "al a' mode" - that is, plugged straight in - no pedals, no preservatives. My Epiphone Les Paul now blissfully grinds early Zeppelin with wanton joy, and my Tellie rips through classic Stones like a hot knife through butter. Really, it's a beautiful thing.

Fast, personal service. Great tubes. You can be assured that any tube amp that I own from now on will have

J & J's. Period.


Jon Nelson

Fargo, ND

----- Original Message ----- From: To: Sent: Thursday, December 23, 2004 12:28 PM

Subject: Mark III series 300

Hey Bob, just wanted to say thank you for the tubes, and for answering my questions, seems like customer service is a thing of the past for most companies, but not yours. The 6L6's and ECC83S's sound incredible in my Mesa Mark III series 300, simply night and day compared to the Mesa Sovtek, the bottom end smacks you in the face and the high end is not too harsh, the clean channel shimmers and the distortion is thick and creamy. I will never buy tubes from Mesa again, I have owned my amp fourteen years as of March 05, and have always trusted their tubes (Mesa) you could say I was close minded, until I found out JJ Tubes cost around $40 less than what Mesa offered. Better tubes at a cheaper price, what a wake up call! I also found out that JJ made some tubes for Groove Tubes, they claim to be the best, but they (GT) are just buying tubes from JJ and putting their name on them, same thing with Mesa, Sovtek makes their tubes and Mesa puts their name on them, shame, shame. I would also like to say kudos on the two day shipping from Oregon to Ohio, I ordered my tubes on Monday and received them on Wednesday, very fast! I have a friend who is going to order some tubes from you for his Carvin. I will try to convert as many people as I can over to JJ Tesla's, I am in no way affiliated with Bob or JJ Tesla, just very happy that there are alternatives to tube solutions that will not sacrifice performance or my bank account. P.S. I will be ordering an extra set in the future

Thanx Tim Warren

----- Original Message ----- From: Tim Schulz To: Eurotubes Sent: Thursday, December 23, 2004 7:55 AM

Subject: New 12AX7s


I never got around to a testimonial after my last order, so let me offer one up here... Use it on the website or just accept it as a personal back pat. As a career customer service rep with three different companies, I want to thank you for quick and responsive customer service, stupifyingly fast shipping, and prices that beat the Canadian tube store I've used in the past by a wide margin. I know customer service, I appreciate it enormously, and it is very often the deciding factor, even overriding pricing in many cases, in who gets my business. Scot at Budda, Joe Naylor at Reverend, Paul Jr at Rivera, Dave Barber, and Matt Farrow from Pharaoh Amps are all great at customer service, so consider yourself in fine company if I tell you that you're as good or better than any of them. You've got a lifetime customer here and I'm happy to recommend you to anyone I know who doesn't know about you already. If you ever come to any of the Chicago area guitar shows I'd love to find you and shake your hand. So thanks again for the speedy service and great product. I'll be ordering up some spare EL84s soon for the Budda (the backup set is a quartet of Sovteks...)


Tim Schulz

DeKalb Illinois

From: "David Thrower" <> To: "Eurotubes" <> Sent: Tuesday, December 21, 2004 6:19 PM

Subject: thanks for the tubes and expertise

hi Bob,
i want to thank you for dramatically improving two amps for me.  first off, the EL84's for my Classic 30 were just the ticket, they are very powerful and full sounding, and you read me just right for breakup. secondly, the 6V6 you sent me for my son's Nau Engineering combo was an INCREDIBLE improvement over the EH6V6 that was in there before - much more powerful, much more clean headroom, better overdrive, and gone is that friggin' SPLAT that the EH did when it was slammed. thirdly, and finally, those high gain ECC83 S's were right on the money. i put one in the Nau so it can get nice saturation using single coils, and i put one in the V2 of the Classic 30 for more powerful overdrive. i had C9's in there in both cases, which were nice, but the JJ's beat'em out because they are more detailed and at 119/120 are like rocket fuel. you got the goods, bro.
best regards,

----- Original Message ----- From: "Gabriel B" <> To: "Eurotubes" <> Sent: Sunday, December 12, 2004 11:24 AM

Subject: Re: tubes!

Simply amazing. I had the "new gear" grin for quite a long time after putting in the new tubes in my Legacy. Everything was fuller and richer, but my high-gain lead sound has so much more sustain and thickness to it. I love the sound.
The shipping was surprisingly fast (2 days from Oregan to Virginia!) I would confidently and highly recommend and the JJ 6L6's to any Legacy owners. You have left me an extremely satisfied customer. Thanks again for everything,

----- Original Message ----- From: To: Sent: Tuesday, December 07, 2004 10:58 AM

Subject: Hey Bob.

Getting a standard re-tube for my Traynor YCV40 was the single best thing I've ever done to improve the way my amp sounds. It went from sounding splashy and cold on the drive channels to being warm and vintagey. It wasn't "almost" the sound I was looking for, It was EXACTLY what I hoped for. Blew my mind! And, to me, tripled the value of the amp. The clean channel impressed me too, real warm and breaks up beautifully. This amp sounds like the real goods now. After spending so much on an amp, its a sin not to drop a few more bucks to make the whole thing sound many times better. The service was fantastic, professional and it was delivered from the west coast to New York in 2 days. I'm totally impressed! Give Bob at Eurotubes a call and you'll end up wishing you did it sooner.


----- Original Message ----- From: Hollie Tracy & Kelly To: Sent: Saturday, December 04, 2004 11:14 AM

Subject: Great sounding tubes

12-4-04 BOB, We have two new VOX AC-30 TBX Amps. They came with generic tubes. We replaced with your JJ Tubes. The Amps sounded good with original tubes, but they are GREAT with your tubes. Great Mids, crystal clear Highs, and good Low-end punch. Bob, thank you for the GREAT service, GREAT product, good price and fast delivery!!! I will use your tubes in the future, and I have recommended your GREAT service to others.

Jim (Glendale, Ca.)

----- Original Message ----- From: Tracy & Benita To: Sent: Saturday, December 04, 2004 7:38 AM

Subject: satisfied customer


After having some time to test drive these new preamp tubes ( JJ ECC81 & ECC83S's in a Mesa DC3 ), I felt the need to update you on my progress. I asked for my overdrive channel to be smoothed out and man did you deliver! Instead of playing the with the OD Channel Gain at 2.5 I now play it at 4.5 with more string definition and smooth saturation than I ever dreamed possible from my amp. Gone is the irritating high end harshness and low end mud. You can count me as one truly satisfied customer.

Thanks again,

Tracy Criman

----- Original Message ----- From: Joel and Sara To: Sent: Wednesday, November 24, 2004 4:11 PM

Subject: Got the tubes!

Hi Bob,

Just wanted to let you know the blues calibrated tubes arrived safe and sound and I didn't kill myself putting them in. Wow, what a difference! I thought my Peavey classic 50 210 sounded good before, but now it's simply awesome. The clean channel tones are like bells, feels like I'm in church! The gain channel is more transparent so the natural tone of my guitars comes through, the sparkling highs are not masked with distortion. Before with max gain, I could barely tell my strat apart from my Les Paul...not anymore, it's Texas Flood with the Strat and Black Dog with the Paul...thanks a million for the recommendation and super service!

best regards,

Joel Gagui

----- Original Message ----- From: To: Sent: Monday, November 22, 2004 6:22 AM

Subject: Re: Thinkin' about it


Received the tubes Sat. afternoon and installed them. Very nice packing, tubes were intact and nicely protected. Moved the Mesa ( 22 Cal ) to the workbench and completed re-tube. The amp floored me.....restored 'Chimy' sound to the fenders, Danelectro 12 string and 'growl', substantial mids and diabolical bass to the Gibsons and Hamer Newport. Thank you once again for a very nice product and taking the guesswork out of a black art for the average amp owner.

Jack deLaurentis

----- Original Message ----- From: "Anibal Ojeda" <> To: "Eurotubes" <> Sent: Saturday, November 20, 2004 7:49 PM

Subject: My review.. thanks !!

 I almost sold my amp two months ago, i was not happy at all with my 5150 combo, the tubes were so noisy i had to use Noise suppressor with the threshold up to 10 !! & the distortion was good but not the best at this point & to heavy !!! i  had to do something so i started a research on 5150 on the Internet &
got almost only positive things about it.. reading a user review at harmony central took me to Bob's site the review was about a 5150 but this person told so many great thing about eurotubes I had to try it out... visiting the page got me to know a lot about tubes (i  didn't know) & i saw the sets of (Eurotubes 5150 combo high gain) i order one to see what happens. In the mean time i was really inspire by the 5150 EX project on Eurotubes so i decided to make an own project of my 5150 & the 5150 1/2 was born:

the combo was too heavy. The same day my new 5150 top was ready the Eurotubes came in, MAN !! i never expected this. i had like a totally new amp it was not a combo any more & it was sounding better !!! i can tell you as long as i play guitar & play tubes amps i will always use eurotubes. & the service was the best !! you always get answer on your messages (alsmos the same day) this is the kind of service i always wanted to get, some one (who knows his stuff + nice + fast + quality ) Forget the hype ! get a pair !!

Anibal Ojeda

----- Original Message ----- From: Ross To: Eurotubes Sent: Friday, November 19, 2004 9:43 AM

Subject: Re: Tubes!

Holy hell man! Got my tubes in last night, setup the amp, let it warm up for about 15 mins. Turned it up and honestly I never thought my amp could sound so rich, pure and controlled. I never new how much tubes could really effect the tone of an amp. I had to re adjust all my amp settings. I used to try the amps eq (bass, mid, treb, reso and pres) to "fix" what I did not like about the tone. Last night I found my self using the EQ to bring out what I loved about the tone!!!!! I was contemplating selling my amp and buying a new one but every amp I played that was in my price range just did not sound any better than my 5150 combo. So tubes was my last ditch effort and I have now learned it should have been the first thing I had thought of. You will definitely have my business after Christmas when we retube my 65 fender twin!

Thanks a million.

----- Original Message ----- From: "Daniel Baur" <> To: "Eurotubes" <> Sent: Thursday, November 18, 2004 3:37 PM

Subject: tubes (what else..?!)

Hi Bob!
I changed the tubes in my Triple Recto today! I put in the KT88 first, because I could hardly wait to hear what they sound like! And I'm really astonished by how big a difference it is! I love the sound! It's huge! And the louder you play them, the better they sound, it seems to me. Of course, it's also due to the other tubes ( high gain ECC83S's ), not only the KT88. For example, I never liked the vacuum tube mode so much on the Recto, but now (with the GZ34's) I love it!
Well, just wanted to let you know that I'm more than happy with my new tubes!
Thanks again for your help and advice!!!

----- Original Message ----- From: To: Sent: Thursday, November 18, 2004 6:05 AM

Subject: JJ's for a Blues Junior for harp

Hi Bob!

I got the tubes I ordered from you on Friday on Monday. That's what I call service. I tried a preamp arrangement a friend recommended and was totally underwhelmed. The feedback was improved, but not much. More importantly, the amp sounded tight, thin and constrained (power tubes still stock). I then decided to follow your kind advice and sat them up exactly as you had prescribed. WOW! The amp opened up tremendously. Very open and breathy with much more transparency. It even seemed to have more headroom. Then I swapped the power tubes. Incredible. Open, clear and much more powerful. Feed back is virtually gone at any reasonable volume level. I can now crank the gain up to 9 or better and run the master up to 9 or 10 with virtually any of my mics. The Boss blues driver, a Boss revere and other effects now sound wonderful and natural. I can't wait to get the Weber in it.
I'll grant you it's still not my 59 Bassman RI, but your tubes have transformed a kinda neat little living room amp to a very respectable, totally phatt piece of equipment that you don't have to make a lot of excuses for. You just open up the pipes and wail!
I would recommend that anyone with one of these amps give you a call, tell you what they want to do, and then follow your suggestions exactly. You know what you are doing and your tubes are righteous.

Rave on my friend and I'll give you an update with the Weber.



----- Original Message ----- From: JERRY To: Sent: Wednesday, November 17, 2004 6:24 PM

Subject: thanks again

Bob, thanks again for the sugestion to use JJ 6V6's in my JTM 45 in place of the 5881's The change was fantastic. All the mud is gone there are more highs and a tight bottom end (what more could you want). I posted this on The Plexi Palace so other people can take advantage of your tip. I hope you get a lot of orders. In my three years of ordering from you, you have always helped on the phone and your tubes have never let me down. Thanks for the tip, your time and the tubes. All the best,

Jerry from NJ

----- Original Message ----- From: To: Sent: Thursday, November 18, 2004 3:14 PM

Subject: New rod...ECC83S and 6V6

Hi Bob....the new tubes came for the Hot Rod (a day before i expected them, by the way) and i just put them in, let her warm up for quite a while, plugged in a strat and........Holy smoke!...what is this new creature that has come to life! I can only explain the sound in one word: Articulate! Everything i played on my strat from chick'n pick'n to Hendrix just rang. I wasn't sure that I wasn't making this up in my mind, so I plugged in my Les Paul and...same thing. I don't know what it is exactly, but this amp just sings now. i absolutely can't wait to REALLY turn it up at a gig and see what Happens...Keep up the good work.

Thanks so much


----- Original Message ----- From: "Gregg" <> To: "Eurotubes" <> Sent: Monday, November 15, 2004 7:34 PM

Subject: first impressions - eurotubes in traynor ycv20wr

 hey bob,
a little first impressions review for your website! "after changing the stock sovtek tubes (which was a complete nightmare because i didn't have a 90 degree screwdriver - i had to take the speaker out to change them) for the new JJ ones, and switching on and leaving for 10 minutes to warm up, i had a play for about 20 minutes. first off i bought the amp for it's versatility (clean and overdriven). although i am a beginner and mainly only play basic ryhthm stuff with
open chords at the moment (rock anf folk), i wanted an amp that could grow with me whatever style i ended up playing. because of this, at the moment, it is the clean channel which gets used 95% of the time, so please take the follwing notes with that in mind! the clean channel has gained CLARITY, that's the most impressive thing, it just sounds nicer overall, with a smoother and more extended top end. harmonics ring very nicely, and it seems like notes sustain for longer too (although this could just be me!) the dirty channel has also improved. gone is the slightly grainy sound,  gone also is the unusable sound when cranked high. what it has been replaced with is pure tube goodness! it's all subjective i know, but i  really thought this was a vast improvement. whether you have the boost
turned on or off, it sounds great, from slightly overdriven (very warm) to full on distortion with a wonderful natural sucking compression on your picking attack (something i never noticed with the stock tubes, although it may have been there). all in all a vast improvement for only 40 bux! do not hesitate to do business with this man! and pretty prompt service too (considering i live in japan)." thanks for these tubes bob! i will place another order with you when these ones are on their last legs!
take care and best wishes,

----- Original Message ----- From: W DELGADO To: Sent: Tuesday, November 09, 2004 8:09 AM

Subject: tubes and tone

Bob, You now have another new customer for life! I can only describe the tone of my 5150 head as unbelievable! I received the phase inverter tube and the other HG ecc83 and the pair of #39 6l6 output tubes yesterday. I ended up installing all of the new tubes in the 5150. Before I did I played for about an hour with the old chinese tubes. I then installed the JJ's. WOW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I have never heard such musically beautiful and rich distortion as I have now. Much tighter bottom end and insane note articulation. I was really unhappy with this amp before, but now I love the tone. Plexi? No problem, Brown sound in spades. And over the top is an understatement. It sounds like a different and much better amp. The amount of gain that I can achieve now is breathtaking, and with sweet singing tone . And that is at bedroom volume. With the master volume at three to five its tone and gain heaven. These tubes made all of the difference. And this is all without a bias mod! That will happen soon enough. You should also be commended for your quick and professional service and fast shipping. Everything arrived in perfect condition and the packing job was first rate. You have, I believe the finest product out there right now and I have and will continue to recommend you to all of my fellow musicians. Nice going! I hope you stay in business forever.


Rollie Delgado

----- Original Message ----- From: "TATO" <> To: "Eurotubes" <> Sent: Monday, November 08, 2004 6:03 PM


----- Original Message ----- From: Dominic Scoppetto To: Sent: Saturday, October 30, 2004 12:57 PM Subject: Re: Integrated Sextet Option #1


I received my Integrated Sextet Option #1 today (2 days from your door to mine). I installed them and the Mesa High Gain Front End Kit into my 3-channel Triple Rectifier and I was compelled to play non-stop for over three hours. Wow, talk about nailing the tone I was after! You nailed it on the money. And talk about "Plug and Play", I think I played for the better part of one hour before I even started tweaking the EQ of the amp. This integrated sextet seems to fill in everything the Mesa STR-430's (YEL) were lacking. You really can hear the E34L's crunch up in the mids without stepping on the 6L6GC's, providing the lead tone I was after, while still maintaining that signature Recto tone in the Modern mode, only better! The cleans are so much more dynamic and responsive to my playing. The Vintage mode in the Orange channel is so much more fluid and dynamic. The overall tone of the amp now has so much more detail and harmonic content. What a great combination of tones!

Also, your customer service is top notch. I realize that you must get an overwhelming amount of e-mails, but you found the time to answer all my questions (in multiple e-mails) and helped me to make a purchase that I am extremely pleased with. I am a very satisfied customer indeed. I have been playing guitar for over 20 years and always found power tube selection a crap shoot. You took the time to really listen to what I was after and got it right on the first roll of the dice.

I encourage any Recto owner to at least give these Integrated Sextets a try. I doubt that you'll be disappointed, even if you are not a big fan of EL-34 type crunch.

Keep up the fine work, you have gained a repeat customer, one that will recommend you to others.


Dominic Scoppetto

----- Original Message ----- From: "Maurice Cashman" <> To: "Eurotubes" <> Sent: Monday, October 25, 2004 7:15 AM

Subject: RE: Tubes!


Just wanted to let you know that I received the complete retube kit for my Peavey 5150 combo on Friday. Thanks again for all your help with the matter. I installed them and noticed a significant difference in many characteristics of the amp. First of all, the amp is much quieter now, even on the lead channel. This was a very nice surprise as I was not expecting it to get any quieter, especially since I ordered the high gain kit. Second, the amp really does sing now with the balanced EC883S for the phase inverter. I did notice the gain increase in the sound of the amp. The best thing about it is that the tone also got better with the increase gain, instead of muddy. I truly love the sound of the amp now. The rhythm channel is also much improved, I just need more time in the day to play the amp now. Thanks again for the help; I will definitely continue to purchase all of my tubes through Eurotubes from now on. Feel free to post this with the rest of your customer reviews as I will also be doing a write up on Harmony Central spreading the word about