Peavey 6505 plus buzz...even when all controls on zero and no guitar plugged in
The amp has a constant buzz when I turn it on. It is still playable but irritating. Even when everything is turned down, no guitar plugged in it still has a constant buzz.
Music - Peavey - 6505+ 112 Combo Amp Combo
Answers & Comments
Sounds like a bad power supply filter cap...the buzz you're hearing is the 60 cycles hum that filter caps reduce or (hopefully) eliminate altogether. It may also be related to the tubes but finding the bad one will require some work. Any friends have this same amp? If so, try swapping one tube at a time and see if you get lucky. If this amp is new take it back ASAP as it is a manufacturing defect.