Axiom Home Page Forums General Discussion Stereo Dynaco Stero 70 tube amp

It is going to be tough trying to check wired in components with a multimeter. Unless you want to do a lot of unsoldering and resoldering, I would recommend against measuring parts that are wired in a circuit. I would visually inspect everything to see if anything looks burned or charred. If it does, I would replace it.

It probably wouldn't hurt to replace all the filter capacitors in the power supply. Might as well replace all the electrolytic capacitors while you are at it.

I like the idea of using a variac to gradually raise the input voltage to insure that everything is operating properly before applying full AC input.