I have a univox u-1246, 70's tube amp head. It keeps blowing fuses and not working when i switch from standby to on. I have tried new power tubes and that didn't help. Any advice would be awesome!
Take it to a professional, sounds like an internal problem and there is a very high risk of electricuting yourself in amps due to capacitors n stuff.
I am going to take it in soon. I quit messing with it anyways. Thanks.