06-05-2019, 05:36 PM
If you have the choice try to get the code 123 it has a better mixer. The older sets use a #15 tube as an audodyne mixer where the code 123 has a 1A6 pentagrid mixer. Better gain and less finicky. There seem to be several service bulletins for the audodyne circuit. The library has the diagram for both.
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
