02-28-2019, 09:40 PM
Ok plan B.
Check the tuning cap for bend plates. If there is a bend one most or the time it would be one of the ones on the outside. You also use your ohm meter to measure the resistance across the cap BUT remember that it's in parallel w/ a coil that has a low resistance to start with. With that being said if it has a short it's going to be very low in resistance like something less than 1 ohm or less. Unshorted would be abt 3 or 4 ohms. Either section shorted would give you very poor reception.
The tuning cap is broken down into two sections, one section tunes the antenna circuit and the other tunes the oscillator. I don't have a chassis layout for this set only a diagram, it doesn't tell me which is which. If the cap checks out ok then I would try another 1A6.
As I mentioned before all voltages at the 1A6 look to be what I would expect except for pin 4. Should be a volt or two negative w/a high impedance meter.
No worries there is a plan C.
Happy Hunting!
Check the tuning cap for bend plates. If there is a bend one most or the time it would be one of the ones on the outside. You also use your ohm meter to measure the resistance across the cap BUT remember that it's in parallel w/ a coil that has a low resistance to start with. With that being said if it has a short it's going to be very low in resistance like something less than 1 ohm or less. Unshorted would be abt 3 or 4 ohms. Either section shorted would give you very poor reception.
The tuning cap is broken down into two sections, one section tunes the antenna circuit and the other tunes the oscillator. I don't have a chassis layout for this set only a diagram, it doesn't tell me which is which. If the cap checks out ok then I would try another 1A6.
As I mentioned before all voltages at the 1A6 look to be what I would expect except for pin 4. Should be a volt or two negative w/a high impedance meter.
No worries there is a plan C.
Happy Hunting!
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 it!
Terry
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