08-20-2018, 01:00 PM
+1
>Licensed under patents of the Radio Corporation of America and Associated Companies
Just means that RCA was paid for the uses of some proprietary information or circuit used it this set. Doesn't mean that RCA had any other connection w/it.
>Tube line-up is 25Z5, 43, 77, 78, 6A7
Not enough tubes to have a rf amp. 6A7 mixer/osc, 78 IF amp, 77 detector, 43 audio output, and 25Z5 rectifier. The triple gang capacitor as Arran stated is used for a double tuned ant circuit or it's not connected.
The key to finding this set is the 77 tube, that's the only unusual thing about the tube lineup. A more popular lineup would have a 75 rather than the 77. Short of that it's very common.
GL
>Licensed under patents of the Radio Corporation of America and Associated Companies
Just means that RCA was paid for the uses of some proprietary information or circuit used it this set. Doesn't mean that RCA had any other connection w/it.
>Tube line-up is 25Z5, 43, 77, 78, 6A7
Not enough tubes to have a rf amp. 6A7 mixer/osc, 78 IF amp, 77 detector, 43 audio output, and 25Z5 rectifier. The triple gang capacitor as Arran stated is used for a double tuned ant circuit or it's not connected.
The key to finding this set is the 77 tube, that's the only unusual thing about the tube lineup. A more popular lineup would have a 75 rather than the 77. Short of that it's very common.
GL
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
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
