Peavey Classic 30, no sound until turned off.

[cstevsk8]

heres my problem, i bought this peavey calssic 30 watt amp for a great deal, and obviously there was a problem with it. when its turned on, there is no sound unless i turned it way up, and then theres only a slight crackle. the tubes are all working but still no sound. However, when i turn the amp off, for a quick second, the amp sounds great. Im hoping that somebody out there knows whats goin on?? thanks

[Enzo]

Does it matter which channel you are in?

Is there B+ on either end of the 400 ohm resistor in the B+?

With power off, adn everyhting discharged, remove the chassis and tug on each and every little bare-wire jumper between circuit boards. between each board set there is a whole row of small wire jumpers. They break. Get under each one and tug gently outwards. If it comes free, you didn't damage it, it was already broken. REpair any that are not whole.

[cstevsk8]

i pulled out the chassis, and there are no broken jumper wires inbetween the different boards. im not sure exactly what you mean by b+, or where the ohm resistor component is located. im not exactly amp savvy. any other ideas of what could be wrong? or, any amp repair specialists in the Los Angeles area? thanks

[Enzo]

Peavey's web site has a service locator feature. I am sure ther are pl;enty in the LA area. ANy competent amp shop can do this repair, it doesn't HAVE to be a Peavey shop. But they'd be most familiar.

B+ is shorthand for the high voltage the tubes operate on. This voltage can KILL YOU, so if you don't know how to work inside the amp, I suggest you go to someone who does. There is a power resistor of 400 ohm, and if it burns out, then there will be several hundred volts on one end but not the other. We are talking about three times the voltage in a wall outlet.

[cstevsk8]

i appreciate your help, and ive been thinking i would be better off just taking it to a shop anyways. thanks for all your help and tips.