Yesterday, 05:32 PM
Disregard, I found an answer. As I suspected, that paper is placed around the innerworkings to insulate them from unintentionally contacting the metal can (since that is grounded). Given that regular paper has an unspecific insulation rating, we can't say whether it will be adequate. It probably would be fine, but let's use insulating paper. I've discovered it is readily available on Amazon for roughly $12.
Joseph
Philco 46-480
Philco 49-906