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Model 37-84 Cathedral
Radioroslyn
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Posts: 7,297
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#6

06-13-2021, 09:38 PM
I'm betting on the wire from the 5Y4 filament to the field coil is open or the field coil is open. I would be surprised if a 37-84 has a spkr plug from the factory. Philco waste 20c on a plug & socket when they can hard wire it in?

<For the 5Y4
There is no connection to Pin 7<

Pins 7 and 8 are the filament connection for the 5Y4. Either pin would be @ HV+ when there is ac voltage applied to the plates and the ct is used for the negative return.
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
(This post was last modified: 06-13-2021, 10:13 PM by Radioroslyn.)
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Messages In This Thread
Model 37-84 Cathedral - by Tucker - 06-13-2021, 05:47 PM
RE: Model 37-84 Cathedral - by 45philcodon - 06-13-2021, 06:46 PM
RE: Model 37-84 Cathedral - by BrendaAnnD - 06-13-2021, 08:13 PM
RE: Model 37-84 Cathedral - by BrendaAnnD - 06-13-2021, 08:15 PM
RE: Model 37-84 Cathedral - by Tucker - 06-13-2021, 09:01 PM
RE: Model 37-84 Cathedral - by Radioroslyn - 06-13-2021, 09:38 PM
RE: Model 37-84 Cathedral - by Tucker - 06-20-2021, 10:00 AM
RE: Model 37-84 Cathedral - by Radioroslyn - 06-20-2021, 04:26 PM



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  1. The PHILCO Phorum
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