A very effective approach that reduce tube microphony, based on the use of heavy weight dampers.
300-B "ATOMIC" DAMPER RING
Weight: 310 grams
- Fits Perfectly on Top of 300-B or 2A3 - Reduce Excessive Heat - Made from Heavy Brass
Octal type double triodes are generally less sensitive to vibrations than direct heated tubes. Here is another version of a more light damper.
OCTAL "ATOMIC" DAMPER RING
Weight: 150 grams
- Fits Perfectly on Top of any Octal type tube - Reduce Excessive Heat - Made from Heavy Brass