Anyone Know How to Fix Radios?

[old_coot88]

This is a long shot, but I'll toss it out anyway inasmuch as you have a sample set for comparison. If it's possible to take the cans off the IF xfmrs for inspection, look and see (in the problem set) if the primary and secondary windings ("tires") have migrated closer to each other than in the sample set.

I had this happen once, not in IF transformers, but in the plate choke of a transmitter. It was a 2.5 mhy RF choke that carried the plate current of the final stage. It consisted of four 'tires' in series, spaced apart on the form. The wax had softened and allowed the 'tires' to gradually slide together, drawn by their mutual magnetic field. Conceivably the upper 'tire' in an IF could slide down under gravity if the wax were softened sufficiently. Like I say, just a long shot. oc