I'll try and include all relevant information, I apologize if I leave anything out, feel free to tell me! Early st70, original wiring, Ive replaced the selenium with a diode, quad cap, maybe a few other things. I read that I should replace the 4 270k resistors on the far right and left side of the board with 100k, did that. Did I need to replace the other 2 270k resistors as well? Also read that I should wire two 15k resistors parallel to the ten k's on the terminal strip, did that and replaced the caps while I was at it.
I will open it up and check my work tonight, take pictures etc. All the joints looked and felt great. When I first got the tubes I tried them with the original wiring, bias all the way down and could only get them to about 1.9 vdc, the tubes seemed fine but after about five minutes the rectifier wasn't looking so good, or sounding so good. Any chance its a bad rectifier?, seemed to be working okay with the old mismatched el34's. I'd love to get my amp back up and running, listened to it almost every day for the last fifteen years, any help is greatly appreciated. I'll post more tonight if I discover anything.