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Model 37-84 Help Needed
#1

Hello, everyone.

I recently purchased a Model 37-84 and did the usual recap and resistor replacement as well as replacing the 4 meg with a 2 meg in the I.F. can as noted on the Philco Repair Bench website.  However, I have run into a problem that I hope someone can help me with.  The radio turns on but I do not get any stations unless I touch the grid cap on the 6J7G detector-oscillator.  A couple local stations come in loud and clear.  Touching the grid cap on the 2nd detector 6J7G gives a loud hum.  Also, the volume control doesn't do anything.  In other words, the volume is constant and doesn't get louder or softer.  I changed to a 50k ohms volume control (the schematic calls for a 20k) with the same result.  

Here is a link to the schematic:  http://www.nostalgiaair.org/PagesByModel...013225.pdf

I look forward to getting any advice you can share.

Dave


Messages In This Thread
Model 37-84 Help Needed - by dseverson - 04-01-2015, 02:19 PM
RE: Model 37-84 Help Needed - by morzh - 04-01-2015, 03:08 PM
RE: Model 37-84 Help Needed - by dseverson - 04-01-2015, 05:59 PM
RE: Model 37-84 Help Needed - by morzh - 04-01-2015, 07:22 PM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-01-2015, 08:29 PM
RE: Model 37-84 Help Needed - by dseverson - 04-01-2015, 11:30 PM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-01-2015, 11:50 PM
RE: Model 37-84 Help Needed - by dseverson - 04-02-2015, 01:03 AM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-02-2015, 07:07 AM
RE: Model 37-84 Help Needed - by morzh - 04-02-2015, 09:14 AM
RE: Model 37-84 Help Needed - by dseverson - 04-02-2015, 01:29 PM
RE: Model 37-84 Help Needed - by dseverson - 04-02-2015, 01:30 PM
RE: Model 37-84 Help Needed - by morzh - 04-02-2015, 01:37 PM
RE: Model 37-84 Help Needed - by dseverson - 04-02-2015, 02:55 PM
RE: Model 37-84 Help Needed - by morzh - 04-02-2015, 03:26 PM
RE: Model 37-84 Help Needed - by dseverson - 04-03-2015, 09:47 PM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-03-2015, 10:39 PM
RE: Model 37-84 Help Needed - by dseverson - 04-04-2015, 01:35 AM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-04-2015, 08:14 AM
RE: Model 37-84 Help Needed - by morzh - 04-04-2015, 10:56 AM
RE: Model 37-84 Help Needed - by dseverson - 04-05-2015, 12:49 AM
RE: Model 37-84 Help Needed - by Ron Ramirez - 04-05-2015, 07:15 AM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-05-2015, 03:09 PM
RE: Model 37-84 Help Needed - by morzh - 04-05-2015, 05:26 PM
RE: Model 37-84 Help Needed - by dseverson - 04-06-2015, 12:10 AM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-06-2015, 09:06 AM
RE: Model 37-84 Help Needed - by morzh - 04-06-2015, 09:28 AM
RE: Model 37-84 Help Needed - by dseverson - 04-06-2015, 11:49 AM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-06-2015, 05:27 PM
RE: Model 37-84 Help Needed - by dseverson - 04-06-2015, 10:26 PM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-06-2015, 10:41 PM
RE: Model 37-84 Help Needed - by dseverson - 04-08-2015, 01:00 AM
RE: Model 37-84 Help Needed - by dseverson - 04-17-2015, 01:05 AM
RE: Model 37-84 Help Needed - by Radioroslyn - 04-18-2015, 06:35 PM
RE: Model 37-84 Help Needed - by dseverson - 06-07-2015, 01:54 PM
RE: Model 37-84 Help Needed - by Radioroslyn - 06-07-2015, 03:35 PM
RE: Model 37-84 Help Needed - by dseverson - 06-08-2015, 01:55 PM
RE: Model 37-84 Help Needed - by dseverson - 06-08-2015, 02:31 PM
RE: Model 37-84 Help Needed - by morzh - 06-08-2015, 02:47 PM
RE: Model 37-84 Help Needed - by dseverson - 06-08-2015, 04:01 PM
RE: Model 37-84 Help Needed - by morzh - 06-08-2015, 04:08 PM
RE: Model 37-84 Help Needed - by Radioroslyn - 06-08-2015, 05:05 PM
RE: Model 37-84 Help Needed - by morzh - 06-08-2015, 05:42 PM
RE: Model 37-84 Help Needed - by dseverson - 06-08-2015, 11:06 PM
RE: Model 37-84 Help Needed - by dseverson - 06-10-2015, 02:15 PM
RE: Model 37-84 Help Needed - by Ron Ramirez - 06-10-2015, 03:18 PM
RE: Model 37-84 Help Needed - by dseverson - 06-10-2015, 03:50 PM
RE: Model 37-84 Help Needed - by Ron Ramirez - 06-10-2015, 05:40 PM
RE: Model 37-84 Help Needed - by dseverson - 06-10-2015, 06:19 PM
RE: Model 37-84 Help Needed - by Ron Ramirez - 06-10-2015, 06:28 PM



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