Tube Amp Archive

Well, I did put a new JJ in V3 and it is significantly quieter than any of the new Mullard tubes. Go figure.

I did a full Ecap replacement on a '68-'69 dripedge Bassman. It is an AC568 circuit although the tube chart is stamped AB165. I added a bias adjustment trimpot to the balance pot. I left the circuit stock. My voltages seem to be running correctly. All new tubes installed. The issue I am having is ex...