If you want the convenience of leaving on your tube cage then suggest you absorb the microvibrations by placing a few Cardas Myrtle Wood Cuboids (myrtle wood vibration reducing/?tuning blocks) on the top of the cage (not directly over hot tubes) and beneath the bottom of the amp chassis. I got mine from Brian of Hellosimplymusic.com here on Audiogon.
Worked for me with one amp lacking removable feature. Unless the amp runs red hot the wood should stay in fine condition.
Hodie, Pearl Tube Coolers surround and help tubes to reach their maximim lifespan by wicking away heat more effectively than just sitting out in fresh air. Available from Parts Connexion here on Audiogon. But,it takes away from the joy of seeing glowing nude tubes.
Worked for me with one amp lacking removable feature. Unless the amp runs red hot the wood should stay in fine condition.
Hodie, Pearl Tube Coolers surround and help tubes to reach their maximim lifespan by wicking away heat more effectively than just sitting out in fresh air. Available from Parts Connexion here on Audiogon. But,it takes away from the joy of seeing glowing nude tubes.