Philco 43 - Printable Version

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Philco 43 - vintageradiojohn - 04-28-2017

I have a model 43 with a missing grid coil on the grid of the # 36 tube. Part # is 05190. This may be the only model that used this coil.
Does anyone have this radio who could measure the DC resistance & inductance so I can find a replacement?

Thanks
John

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RE: Philco 43 - morzh - 04-28-2017

There's no 36 tube in 43.
This said, DC resistance is not important.

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RE: Philco 43 - Radioroslyn - 04-28-2017

http://www.nostalgiaair.org/pagesbymodel/628/M0029628.pdf

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RE: Philco 43 - morzh - 04-29-2017

John

It's always a good idea to reference the reference designator on the sch when talkng about a part.

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RE: Philco 43 - Radioroslyn - 04-29-2017

Hi John,
If you find no bites on your request and you don't mind doing a little experimenting try this. From the diagram it looks like the missing coil is used to couple some of the oscillator signal up to the ant circuit. It's untuned so I'm thinking that the inductances aren't very critical. I would wind a coil that mimics the primary of the oscillator coil #10. Might be a start as the set won't do anything w/o the center winding on the missing coil as it the ground return for the mixer cathode.

GL

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