Our bass player has a studio, and we jam there exclusively. I have had so many problems with my amps when I'm there. I experience a lot of blown fuses, blown tubes, and other intermittent problems, etc. Just yesterday, I was playing my amp (it wasn't dimed) and I blew a fuse. Today, I went back and replaced the fuse and turned it on. It was on 2, then it blew again. I decided to try putting a plain old power bar in between the amp power cord and the cord coming out of the wall socket. Voila, no problems->yet (fingures crossed). So, did I fix the problem? He has an old house (think 80+ years old), and there is often noise that accompanies everything that is plugged in. Is it fluctuating voltage that has been causing all the problems, or do you think it's something else? The amps I had problems with include a '68 Deluxe Reverb, a '96 VOX AC30 TBX, and a '66 Traynor Guitar Mate Reverb YGM-1. ...maybe it's a ghost?