Tube Damper Rings. After experimenting with tube dampers in torture chambers
(combo amps) for quite a while we finally decided to build them right. We had
our own mold made for these and our "EuroDampers” are made from a softer than
standard durometer, special high temp silicone. These are BIG dampers and the
small rings for preamp tubes and EL84's measure 1.35 in diameter by .375 tall.
The "Large EuroDamper Rings” measure .375 tall and 1.800 in diameter and are usable on all 6V6's, GZ34's, EL34's and 6L6's (a very tight squeeze).