About The Valve
The EH 6L6 is a beam power tetrode modeled after the vintage RCA 6L6GC "blackplate". It features large plate dimensions and improved grid structure for increased power handling capabilities. It also features mica spacers with metal springs to eliminate tube rattle and microphonics. The 6L6EH offers tone and superior performance.
Platinum Matched & Tested
We burn-in these valves for a minimum of 30-40 hours before matching. The reason we do this is to get rid of any faulty or weak valves and as a pre-grading process to allow the plate/grid mechanism to relax into it's rest position. Tiny differences in construction make for enormous differences in electrical characteristics, and thus if a tube is graded after it's been burned in then the measured characteristics hold true over its lifespan to a greater extent. This seems simple but it's amazing how many vendors ignore it. It's the reason so many people complain about poorly graded valves.