[Arran]

I have a Canadian version of one of these, it was made under license from U.S Radio & TV by Grimes-Phonola. The construction is very similar but Grimes-Phonola designed and built their own cabinet, and placed an escutcheon labeled "Dictator" around the dial rather then Gloritone. Dictator was the private label brand for Hudson's Bay Company radios during the 1930s and 40s, post war they adopted the "Baycrest" brand since it didn't have the negative connotation with autocratic European politicians like the Austrian Painter, or the Duce.
Anyhow it is basically a screen grid TRF circuit that they used, similar to a Philco 20, but with a single ended #45 output rather then push pull 71As, and the model 20 has an extra TRF amplifier stage. In any event I would follow the diagram with the heater wiring, it's a fairly basic radio if all of the coils and transformers test out all right. http://www.nostalgiaair.org/PagesByModel...040710.pdf With mine I think I will replace the electrolytics with motor run caps, there is a big clamp that held the original filter caps in place, which I think were so called "dry" electrolytics, which are long gone.
Regards
Arran