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model 48 464
Radioroslyn
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Posts: 7,286
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City: Roslyn Pa
#7

11-21-2023, 12:58 AM
Ok so if you measure the dc voltage from the cathode of the 50A5 (+) and B- to the negative meter lead. Should see about 6vdc there if the resistor is 130 ohms. If it's 233K it's going to be a whole lot more like 30 or 40v. This will cause the tube not to conduct. Replace w/a 1 or 2 w replacement.
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
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Messages In This Thread
model 48 464 - by retired2020 - 11-19-2023, 06:29 PM
RE: model 48 464 - by morzh - 11-19-2023, 07:06 PM
RE: model 48 464 - by Radioroslyn - 11-19-2023, 10:49 PM
RE: model 48 464 - by retired2020 - 11-20-2023, 04:25 PM
RE: model 48 464 - by Radioroslyn - 11-20-2023, 08:29 PM
RE: model 48 464 - by retired2020 - 11-20-2023, 09:20 PM
RE: model 48 464 - by Radioroslyn - 11-21-2023, 12:58 AM
RE: model 48 464 - by retired2020 - 11-26-2023, 05:55 PM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration