Philco 90 Capacitor 28 - Printable Version

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+--- Thread: Philco 90 Capacitor 28 (/showthread.php?tid=18431)

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Philco 90 Capacitor 28 - NV3G - 05-21-2018

I am working on a Philco 90. Capacitor 28 has three capacitors, .5 ufd, .25 ufd, and .25 ufd. The schematic does not give the values and I would like to know which one of the capacitor symbols is the .5 ufd capacitor on the schematic?

Thank you,
nv3g
Oscar

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RE: Philco 90 Capacitor 28 - klondike98 - 05-21-2018

There are several versions of the 90. Ron has annotated these schematics, does this help?

Early Version (2 45tubes)

Middle version (1 47tube)

Late version (2 47tubes)

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RE: Philco 90 Capacitor 28 - NV3G - 05-21-2018

Yes, thank you!

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RE: Philco 90 Capacitor 28 - klondike98 - 05-21-2018

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RE: Philco 90 Capacitor 28 - mister_big77 - 09-26-2022

Thanks!!!!!!  I am restoring an early 90. I rebuilt the 28 cap and needed to know which went where.

Bob

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