04-15-2019, 04:26 PM
The early 30's Philco superhets used 175 and 260 kc. Philco also use several tuned radio frequency (trf) circuits too, these don't require any IF circuitry. Most of these are from the late 20's and early 30's.
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 it!
Terry
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
