12-30-2017, 02:11 PM
Sound like your IF amp is oscillating. Try touching the grid cap on the 6K7 and to hear if it clears up. May drop the gain a bit. If so realign the IF transformers if it still persists detune one of the IF trimmers.
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
