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48-200 code121 Filament Wiring incorrect
Arran
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City: Sandwick, BC, CA
#12

11-21-2017, 01:36 AM
35Z5s, 35W4s, and 35Y4s, all have a pilot light tap on the filament, the pilot light has to be connected across this, usually in parallel with a 1 watt resistor. It might be popping because the pilot lamp is connected in parallel across the entire 35Z5 filament rather then just one end and the tap.
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Arran
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RE: 48-200 code121 Filament Wiring incorrect - by Arran - 11-21-2017, 01:36 AM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
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