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Calculate Needed Filament Resistor
Joe Rossi
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Posts: 711
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#11

02-01-2026, 06:11 AM
Here is link for the schematic at Nostalgia Air:

https://www.nostalgiaair.org/pdfs/Zephyr...Co-5DK.pdf

Good luck!
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Messages In This Thread
Calculate Needed Filament Resistor - by dconant - 01-31-2026, 12:36 PM
RE: Calculate Needed Filament Resistor - by RodB - 01-31-2026, 01:33 PM
RE: Calculate Needed Filament Resistor - by morzh - 01-31-2026, 04:14 PM
RE: Calculate Needed Filament Resistor - by RodB - 01-31-2026, 04:46 PM
RE: Calculate Needed Filament Resistor - by morzh - 01-31-2026, 04:50 PM
RE: Calculate Needed Filament Resistor - by morzh - 01-31-2026, 05:01 PM
RE: Calculate Needed Filament Resistor - by morzh - 01-31-2026, 08:38 PM
RE: Calculate Needed Filament Resistor - by Joe Rossi - 02-01-2026, 06:11 AM
RE: Calculate Needed Filament Resistor - by morzh - 02-01-2026, 12:51 PM
RE: Calculate Needed Filament Resistor - by morzh - 02-07-2026, 04:36 PM
RE: Calculate Needed Filament Resistor - by morzh - 02-07-2026, 05:49 PM
RE: Calculate Needed Filament Resistor - by morzh - 02-07-2026, 06:32 PM



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  1. The PHILCO Phorum
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  3. Other Radios/Phonographs (Non-Philco)