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philco 42-1012
Arran
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Posts: 4,707
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City: Sandwick, BC, CA
#9

01-25-2013, 03:00 AM
Check the plate resistor of the 1st audio second detector tube, those sometimes go up in value or go open. Another possibility may be improper bias on one of the tubes, but a bad output transformer is a common problem in these early 40s Philcos.
Regards
Arran
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Messages In This Thread
philco 42-1012 - by murf - 01-06-2013, 12:21 AM
RE: philco 42-1012 - by TA Forbes - 01-06-2013, 02:41 AM
RE: philco 42-1012 - by shawn - 01-16-2013, 09:48 PM
RE: philco 42-1012 - by murf - 01-16-2013, 10:00 PM
RE: philco 42-1012 - by TA Forbes - 01-16-2013, 10:02 PM
RE: philco 42-1012 - by murf - 01-16-2013, 11:33 PM
RE: philco 42-1012 - by murf - 01-24-2013, 11:53 PM
RE: philco 42-1012 - by TA Forbes - 01-25-2013, 12:44 AM
RE: philco 42-1012 - by Arran - 01-25-2013, 03:00 AM
RE: philco 42-1012 - by murf - 01-27-2013, 06:13 PM
RE: philco 42-1012 - by Electrothaumaturgist - 01-30-2013, 04:54 PM
RE: philco 42-1012 - by Arran - 01-30-2013, 10:24 PM
RE: philco 42-1012 - by murf - 01-30-2013, 10:45 PM
RE: philco 42-1012 - by codefox1 - 01-31-2013, 02:06 PM
RE: philco 42-1012 - by murf - 01-31-2013, 06:19 PM
RE: philco 42-1012 - by Electrothaumaturgist - 01-31-2013, 09:02 PM
RE: philco 42-1012 - by murf - 01-31-2013, 09:14 PM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration