04-03-2022, 12:50 PM
I would suspect that it would have had a 5Y4. If you measure the resistance from pins 4 and 6 @ the socket and it's open use the 5Y4. 4 and 6 are the plate connections for the 5Y3.
GL
GL
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