02-08-2021, 07:14 PM
Mikethedruid - many thanks for your advice. Yes, I have a tube tester, and before I do any work on a set, I test the tubes. This 60B really has me stymied. I've been VERY careful with each step i.e. re-stuffing the condenser blocks, replacing out of tolerance resisters, replacing decrepit wiring etc. and something just isn't right. I've tried to locate a defective part/stage with the signal tracing method to no avail. Obviously, I have missed something or done something wrong, but I've never experienced the symptoms that this set is giving. I'm stubborn as a mule, and I'm not going to give up, but I must admit to feeling frustrated.