I swear... The Blackface Vibrolux Reverb is supposed to be one of the greatest amps of all time. I grabbed one last summer, really liked it, and ended up selling it to fund a guitar purchase. Missing it, I replaced it with another one (borrowed money and paid interest to the bank, stupid!) when a clean one came by. The new one had some bad tubes in it, and I had speaker trouble. Got those sorted out, then it went down on me at a gig. Ended up thinking I fixed the prob, gotta love intermittent stuff, didn't. It was a bad treble pot on BOTH channels. What are the chances of that?! Good tubes, good speakers, biased, 3 prong, cap job. Good to go. Sounding good. Last time I plugged it in, I played for a few minutes and a hellacious blaring WWWWOOOONNNNKKK! came out, vol control wouldn't affect it. Turned it off, pulled the PI tube since it was obviously after the vol control. No noise. Put the tube back in, it works fine. Now, I can't for anything get it to act up again. I chopstick'd all the parts and solder joints, cranked it, nothing. This thing feels like a ticking time bomb, because I know it'll happen again. I've been working on amps for years and maintain all mine, but this thing is making me crazy. It works, but I don't want to take it out to a gig because every time I do, it breaks! Any of you have an Amp That Keeps on Breaking?