08-04-2018, 06:28 PM
Ok so check the resistance across the tuning cap on the oscillator side, should read abt 5 ohms. If it measure 0 you've got a bend plate that's shorting the cap out. If there is a bent plate if you turn the cap till it's all the way open should show the 5 ohms and will drop to 0 when closed.
Measure the dc voltage on P3 of the 7A8 (from B-) should see some hv there abt 60-90dc. P4 should show a little - voltage a volt or two.
GL
Measure the dc voltage on P3 of the 7A8 (from B-) should see some hv there abt 60-90dc. P4 should show a little - voltage a volt or two.
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
