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I just worked on a 1952 motorola AM radio and had to drill out the bottoms of the IF cans to remove the offending mica sheets and then bend back the contacts so they would not short. One of the things came apart and I had to heat the coil, remove it and resolder the wires! I did use 100 pf ceramic and it works well. Just soldered the caps in on the bottom of the chassis at the transformer terminals.
Some of these old cans it is easier to remove the mica sheets than others.
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