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41-250 extra resistor or schematic eerror?
FStephenMasek
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Posts: 234
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Joined: Mar 2008
City: Mission Viejo, CA
#1

10-19-2008, 09:29 PM
My Philco 41-250 either has a factory wiring error, or the schematic in the Philco manual I obtained is incorrect. The schemettic shows B-minus going to two 470K resistors (part numbers 53 and 54), and the other end of each resistor to a grid on one of the 41 output tubes. My radio had an additional 470K resistor between B-minus and those two resistors.

Do you have any ideas, or have you worked on one of these?
Web site: http://www.masekconsulting.net
Radio Photos: http://www.photobucket.com - album id FStephenMasek
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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration