Philco 89B restoration - Printable Version

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+--- Thread: Philco 89B restoration (/showthread.php?tid=20094)

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Philco 89B restoration - rck46 - 06-09-2019

    The radio I have, I believe, is the last model with the 36 tube before it was changed to a 77 tube.  My radio has a broken mica cap between the plate of the 75 tube and ground that is not shown on the circuit diagram here https://philcoradio.com/library/index.php/shop-talk/model-notes/evolution-of-philco-model-89/  The broken cap is a micamold with a color code of brown, yellow, brown.  In the later versions of the 89 with the 77 tube there is a 250 pf cap here.  I have attached a pic of the cap.  Is a 250 pf cap ok for my radio?  Thanks, Bob

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RE: Philco 89B restoration - Radioroslyn - 06-09-2019

Yup 250mmfd is fine voltage rating of 300v or better.

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