FondledDuck
Well-known member
Hey guys, just noticed that my '78 JMP is in the 110 volt mode, but wondering if it should be in the 120...and what the differences are? The tube bias was set with it in the 110 volt setting...
glip22
Well-known member
At 120 your voltages will drop a good bit. You can try it but I prefer the 110 tap.
steve_k
New member
Careful though. If you give it 10 more volts of input, that will give you about 30-40 more volts B+. If your tubes are biased very hot at 110V, you may pop a tube.
FondledDuck
Well-known member
I'm gunna keep it as it is, in the 110 volts setting. Just wanted to make sure if it should have been in the 120 instead. Thanks for the info guys.