5 hours ago
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it's likely 20 to 22 gauge, though may be thicker like 18. I don't have a 1937 model Philco on hand so I couldn't' tell you what they used, though I believe it was cloth covered, so it usually holds up unless it was disturbed or chewed on by a rodent.
Regards
Arran
Regards
Arran