#1
All right, I have been dealing with this problem with my amp for a while, and not complaining. But now that I'm going to sell it, I need it fixed.

When I take my amp off standby, a nasty whine kind of like steam from a hot water kettle you put on a stove starts. No matter what I do with the guitar; volume, tone, unplugged, plugged in. It's present on both channels. But when I take the gain off on the gain channel it disappears. It also lowers in intensity when I take off the bright switch on the clean channel. It gets louder the louder I have the amp set, but it's always quieter than my guitar. It's kind of annoying playing live, but not really noticeable unless you actually pay attention.

The most annoying part about it is when I like...try to turn the guitar volume off to answer the phone or whatever and I hear that damn whine.

It's a peavey valveking. Original tubes. No other problems.
Winner of the 2011 Virginia Guitar Festival

Protools HD
Lynx Aurora 16/HD192
Mojave, Sennheiser, AKG, EV etc mics
Focusrite ISA828 pres
Waves Mercury
Random Rack Gear

65 Deluxe Reverb
PRS CE 22
American Standard Strat
Taylor 712
#2
how long have you had it?
and how often do you play it because to me that sounds like a tube problem might even be a faulty tube from when you bought it is now causing you pain.
#5
Quote by IbanezPsycho
Sounds like one of the tubes is microphonic...

Try this...

http://www.ehow.com/how_2043383_-locate-microphonic-tube-amplifier.html



Thanks, I'll try that. my amp is 4 rooms away, and the guitar volume is turned off. I can hear it.
Winner of the 2011 Virginia Guitar Festival

Protools HD
Lynx Aurora 16/HD192
Mojave, Sennheiser, AKG, EV etc mics
Focusrite ISA828 pres
Waves Mercury
Random Rack Gear

65 Deluxe Reverb
PRS CE 22
American Standard Strat
Taylor 712