01-05-2010, 05:04 AM
I started working on it only to find that osc coil is open. Got to thinking how hard would it be to make a replacement? I've got a bunch of national XR-50 form (1/2" slug tuned) and wire from 30G down to 50G. Tuning cap is about 365mmfd + 20mmfd for the trimmer. Osc needs to tune 1010kc to 2260kc. The original uses the grid /plate for feedback. Wouldn't be apposed to changing it to a grid cathode circuit like most AA5's. Any ideas on how many turns for the windings? I don't mind experimenting and have jig I can wind the coil in with a turns counter.
Looking forward to hearing any comments.
Terry
Looking forward to hearing any comments.
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
