As in it is shocking me if I'm in contact with something grounded, a mic, a pole in a basement (not that kind of pole, a steel support beam). This thing still has the two prong power cord on it. I'm guessing that is the bulk of the issue. I've heard about "death caps" on old fenders, could this be the case here, a cap not functioning properly and discharging to the chassis? Does replacing the power cord remove that cap? I'm very interested in learning how to do some of this myself. Is this a tough or dangerous job? Anyone know these amps well enough to talk me through it? In a less related matter, I'm looking for training by correspondence for tube amp repair or design. Any leads there?