[Ron Ramirez]

I am not sure, and don't have the records handy to check, but one reason for the difference between US and Canadian wire type, rubber covered vs. cloth covered, could be a difference between UL and CSA requirements at the time.

I suspected as much.

But what I find really interesting is that the IF transformers have/had rubber-covered leads! So I can't help but wonder how many of the parts were actually imported from USA Philco and then assembled into radios in Canada.

The two electrolytic capacitor cans in my 39, as well as the lone bakelite block, are all stamped "Made in U.S.A."