03-31-2023, 08:23 AM
You should be able to pull a suitable oscillator coil from any of the following Philco radios:
19, 71, 89, 91
All four use the autodyne oscillator circuit (with a type 36 or 77 tube) and were designed for a 260 kc IF frequency.
A 91 or 71 junk set might be harder to find but there should be plenty of 89 junkers out there. Of course, you can count on having to rewind the outer winding which is almost always bad.
I'm not aware of any newer oscillator coils designed for a 260 kc IF frequency.
19, 71, 89, 91
All four use the autodyne oscillator circuit (with a type 36 or 77 tube) and were designed for a 260 kc IF frequency.
A 91 or 71 junk set might be harder to find but there should be plenty of 89 junkers out there. Of course, you can count on having to rewind the outer winding which is almost always bad.
I'm not aware of any newer oscillator coils designed for a 260 kc IF frequency.
--
Ron Ramirez
Ferdinand IN
