Can anyone with some experience in these things help me. Heres what happened... I turned it on, it made a horrible noise. I turned it off. Turned it on again, no horrible noise, power tubes were glowing normally, took it out of standby and the fuse blew. After that it blows fuses as soon as I turn it on, even with the standby on. I opened it up and the capacitor that connects to the ground switch has popped. I am not sure if this is the cause or an effect of the problem. I have not been able to find a replacement part in the local electronics stores either, (its 600V, .047uF). I also noticed the wiring in the AC plug was coming apart and I have replaced the plug. Other than this the amp has worked fine for quite a while.