03-10-2021, 03:09 PM
The that thing comes to mind is it could be internal leakage in the det/1st audio tube. Have hear it a lot with sets that use 'at6 and 'av6 tubes.
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