[Bob Andersen]

Maybe the pushbuttons are out of whack because the IF alignment is off, not to surprising given the age of the set and the fact that you had to open up one of the cans to replace the wires and a resistor.
Regards
Arran

I just went through the alignment process this evening and, you're right, it was pretty far off. That improved the SW performance noticeably, but the BC band is a mess. There's a very loud buzzing all through the tuning range. I'll have to go digging for the culprit.