03-18-2011, 05:18 PM
I had a similar problem with model 370 (model 70 chassis) It has the same style coil. Mine had a broken wire and I was able to resolder it. In your case If the continuity check ok than the problem isn't the coil. Would check the plate, screen grid, and cathode voltage of the rf amp tube. While you have the coil out check the resistance of the rf section of the tuning condenser (should measure open with the condenser all the way closed).Rf amp tube ok?
If you really think it is the primary of the coil, take a cardboard tube small enough to fit inside you rf coil and wind 50turns of small gauge magnet wire. With the set all back together take the coil you just made and place it inside the rf coil in the set. Take one of the wires from that coil and hook it to your antenna. It the reception is much better then it is the antenna coil.
Terry
If you really think it is the primary of the coil, take a cardboard tube small enough to fit inside you rf coil and wind 50turns of small gauge magnet wire. With the set all back together take the coil you just made and place it inside the rf coil in the set. Take one of the wires from that coil and hook it to your antenna. It the reception is much better then it is the antenna coil.
Terry
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
