fsmith
Active member
Looking at the back of my combo how are the 12AX7's numbered? I see 3 that have the tube covers and one that doesn't. Should all 4 have covers?
thanks,
fred
thanks,
fred
fabien said:Yes they should. It doesn't impair the amp's performance but it keeps the tubes from dislodging due to vibrations, and I think it protects also against microphonics (also due to vibrations) but that I'm not sure.
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