I have a hybrid guitar amp that has a single 12ax7 in the preamp section and a class A-B solid state power amp section.
I've been using it only as a power amp (I connect an external preamp to the "return" of the effects loop, completely bypassing the integrated preamp) and I recently noticed that the 12ax7 has started to turn microphonic, so that a replacement tube would be needed, but I would prefer not to buy a tube for a preamp I won't likely use.
Can I just remove the tube in it and keep using just the power amp section or will running it without a tube burn something?
What if the tube fails without me noticing?
Thank you.
I've been using it only as a power amp (I connect an external preamp to the "return" of the effects loop, completely bypassing the integrated preamp) and I recently noticed that the 12ax7 has started to turn microphonic, so that a replacement tube would be needed, but I would prefer not to buy a tube for a preamp I won't likely use.
Can I just remove the tube in it and keep using just the power amp section or will running it without a tube burn something?
What if the tube fails without me noticing?
Thank you.