[Al Green]

New member here. I'm in the process of restoring a Philco 46-1226, code 125. Unfortunately, the condition it came to me in prevented me from testing it prior to the work I did. I say that because I don't know if the issue I'm dealing with was preexisting or the result of something I did during my work. The issue? When listening to AM, increasing the volume (turning the knob clockwise) causes the output from the speaker to decrease. This doesn't happen when I inject a sine wave into the phono input, i.e. the volume works as you'd expect.

I've replaced all of the electrolytic and paper caps throughout the unit and also swapped out any grossly out-of-spec resistors. I tested all of the tubes with my B&K 550 and replaced any that tested weak. If anyone has any ideas or has encountered this oddity before, please weigh in.

Thanks.