01-12-2018, 09:49 PM
Check across 7C5 pins 1 and 8 should see 6vdc. Remove 7C5 and check the resistance from pins 1 to 8 at the bottom of the tube should see a few ohms. If that checks out check the other voltages on the 7C5 w/tube in place and set on.
Pin 1 0v
Pin 2 several hundred volts
Pin 3 several hundred volts
Pin 6 -7vdc or so
Pin 7 +7vdc or so
Pin 8 +6vdc
GL
Pin 1 0v
Pin 2 several hundred volts
Pin 3 several hundred volts
Pin 6 -7vdc or so
Pin 7 +7vdc or so
Pin 8 +6vdc
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
