I have been rebuilding an old fanon 65 watt pa amp and after recapping have serious distortion as soon as I try to turn it up. At about a quarter volume, the amp starts to distort quite bad and I don't seem to get any more volume no matter how high I turn it up. I am still learning and I don't have a schematic for it so I am just checking out what I know. the bias is ok and the tubes all test fine. I am wondering if I have an open cap or shorted resistor somewhere, I am just not sure what to test first. Any help would be greatly appreciated and I will try to be as informative as I can when describing what I find. thanks to all.
Best Regards
Brett
Best Regards
Brett