08-11-2017, 08:23 PM
I would suspect that the extra coils are for the old police band, as you go higher in frequency w/a trf set the selectivity drops off. You don't really see very many trf sw sets most are regenerative or superhets. I have several Simplex sets that are very similar to yours electrically that are two band sets. The second band isn't calibrated or noted on the dial. These use a 58,57,47, and an 80. Simplex model N it's kinda strange in that there is an ac model that is a trf and a dc model that is a superhet.Perhaps a year or so new than your set.
http://www.nostalgiaair.org/pagesbymodel...043257.pdf
http://www.nostalgiaair.org/pagesbymodel...043257.pdf
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
