M Mdkanz New Member Mar 16, 2009 #1 Is there a limited amount of ac voltage you can give a 12ax7 vacuum tube before it will break?
crutschow Well-Known Member Most Helpful Member Mar 16, 2009 #2 There is a plate to cathode voltage above which the tube may arc over internally and damage the tube, which is 550V for no signal and 300V for normal operation. Is that what you mean?
There is a plate to cathode voltage above which the tube may arc over internally and damage the tube, which is 550V for no signal and 300V for normal operation. Is that what you mean?
Nigel Goodwin Super Moderator Most Helpful Member Mar 16, 2009 #3 You've already had loads of answers in your existing threads, why start yet another pointless one? - moderator.
You've already had loads of answers in your existing threads, why start yet another pointless one? - moderator.