- Sep 11, 2016
Yeah and the problem is if you use that switch you posted, it will totally bypass the tube warmup (this is the circuit now broken) and burn out the tubes faster. The best solution is to get the unit repaired. Maybe it is possible you had a power surge on return of power, which could have caused similar issue even with unit off.Hmm. We did have a couple seconds of power outage sometime last week when a transformer blew in the neighborhood, but the amp wouldn't have been on at the time. I'm very good about turning it off when not in use; these tubes cost me a chunk of money that I don't want to waste by burning the tubes 24/7.