[MrFixr55]

Hi David,

Check the cathode bias resistor, it may have changed value. That will affect grid bias, etc. Also, verify that C26 is not bad, even though you replaced it. I had a radio give very low volume and very high distortion from a leaking coupling cap years ago. This will drive grid voltage positive and cause excess plate current in the output tube. Admittedly, this would lower B voltage due to high current. Verify that your output transformer is compatible with the tube. Although drawn as a pentode, this is a beam power tube similar to 35L6 except for the base. In fact, I have a socket adaptor from 35L6 to 35A5. The transformer should have a primary impedance of 2500 Ohm.

I have never really had an issue with excess distortion running an AA5 on 120V as opposed to the 110 or 115V nominal spec for the radio.