[Arran]

I have two examples of the wooden version of that set, called a model 84 in Canada. I think that the Bakelite version may have been called an 83? There were actually two windings in that loop antenna, one is a primary and the other a secondary, the secondary works as a loop antenna and the primary is to connect an external antenna, that may have been why the turn count was slightly out on your reproduction. The knobs will be the more difficult part to find but they did build a lot of these sets and built many models using the same knobs between 1949 and 1952-53.
Regards
Arran