Any experience with this? I'm not certain what I paid for this..it was part of a bigger load of old gear I went in on recently. It's sitting in my living room as something just to fiddle around on at home. It seemed alright for a couple of weeks...then one day last week, after I played at fairly low volume for about an hour, it became static-y sounding (like the sound of a dusty knob turning) and got quiet, and then cut out completely. I fiddled with the input gain pre & post knobs but got nothing. I turned it off and tried it again in an hour, and it seemed to work fine. Then today, I turned it on and got nothing. But when I fiddled with the pre-gain knob, it made a static-y sound (like a dusty knob) at first, and then the sound was working..but there was like a 'ping' of static at a regular interval ('pop-pop-pop-pop') that sounded almost 'digital' in a way. Any thoughts? I have some experience with soldering/de-soldering circuit boards if I knew what to do...is it worth fixing? I'm not much of a fan of Peavey amps..I planned to sell it at some point.