Philco 40-140 Field Coil Replacement

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Philco 40-140 Field Coil Replacement

radiola
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Posts: 64
Threads: 10
Joined: Dec 2010
City: Baltimore, MD

#36

10-11-2012, 10:49 PM

Well, well. I changed the cap in question. On the schematic, it is #39, which is a .004 cap. It seems on the schematic to be coming from the plate of the 7c6 tube (second detector), to the cathode of the 7B5 tube (output tube). I'm no expert, and don't know what that cap does (perhaps someone can tell me), but when I changed it, the set passed the hour bench test. Now for the restringing of the tuner cord (everyone's favorite task). Thanks, guys.
NOTE: Someone first stated to me that when you switch out a field coil for a power resistor, it is necessary to increase a certain capacitor. If that's true, can you let me know which one to change? Possibly an .05 cap?

(This post was last modified: 10-11-2012, 11:24 PM by radiola.)

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Messages In This Thread

Philco 40-140 Field Coil Replacement - by radiola - 09-05-2012, 12:21 AM

RE: Philco 40-140 Field Coil Replacement - by TA Forbes - 09-05-2012, 02:50 AM

RE: Philco 40-140 Field Coil Replacement - by radiola - 09-06-2012, 01:14 AM

RE: Philco 40-140 Field Coil Replacement - by codefox1 - 09-06-2012, 02:09 AM

RE: Philco 40-140 Field Coil Replacement - by TA Forbes - 09-06-2012, 12:57 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 09-06-2012, 07:26 PM

RE: Philco 40-140 Field Coil Replacement - by Arran - 09-07-2012, 10:38 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 09-15-2012, 08:08 PM

RE: Philco 40-140 Field Coil Replacement - by Arran - 09-17-2012, 07:33 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 09-17-2012, 08:15 PM

RE: Philco 40-140 Field Coil Replacement - by TA Forbes - 09-17-2012, 10:17 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 09-19-2012, 08:46 PM

RE: Philco 40-140 Field Coil Replacement - by TA Forbes - 09-19-2012, 09:03 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 09-22-2012, 06:53 PM

RE: Philco 40-140 Field Coil Replacement - by codefox1 - 09-24-2012, 05:20 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 09-24-2012, 06:01 PM

RE: Philco 40-140 Field Coil Replacement - by Steve Davis - 09-24-2012, 06:25 PM

RE: Philco 40-140 Field Coil Replacement - by codefox1 - 09-24-2012, 06:30 PM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-02-2012, 10:18 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 10-02-2012, 10:30 PM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-02-2012, 11:01 PM

RE: Philco 40-140 Field Coil Replacement - by Ron Ramirez - 10-03-2012, 05:46 AM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 10-03-2012, 01:40 PM

RE: Philco 40-140 Field Coil Replacement - by Michael Dennis - 10-04-2012, 11:28 AM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-06-2012, 12:39 AM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 10-06-2012, 03:39 PM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-07-2012, 02:05 PM

RE: Philco 40-140 Field Coil Replacement - by morzh - 10-07-2012, 03:59 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 10-07-2012, 07:03 PM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-07-2012, 09:19 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 10-07-2012, 11:52 PM

RE: Philco 40-140 Field Coil Replacement - by morzh - 10-08-2012, 12:06 PM

RE: Philco 40-140 Field Coil Replacement - by codefox1 - 10-08-2012, 07:59 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 10-08-2012, 08:54 PM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-10-2012, 10:22 PM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-11-2012, 10:49 PM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 10-12-2012, 12:01 AM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-12-2012, 12:10 AM

RE: Philco 40-140 Field Coil Replacement - by jerryhawthorne - 10-12-2012, 01:38 AM

RE: Philco 40-140 Field Coil Replacement - by Ron Ramirez - 10-12-2012, 05:29 AM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-12-2012, 01:49 PM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-19-2012, 01:21 AM

RE: Philco 40-140 Field Coil Replacement - by codefox1 - 10-19-2012, 01:29 PM

RE: Philco 40-140 Field Coil Replacement - by Ron Ramirez - 10-19-2012, 06:39 PM

RE: Philco 40-140 Field Coil Replacement - by morzh - 10-19-2012, 08:29 PM

RE: Philco 40-140 Field Coil Replacement - by radiola - 10-20-2012, 03:21 AM

RE: Philco 40-140 Field Coil Replacement - by radiola - 01-31-2013, 03:44 PM

RE: Philco 40-140 Field Coil Replacement - by Ron Ramirez - 01-31-2013, 05:41 PM

RE: Philco 40-140 Field Coil Replacement - by radiola - 01-31-2013, 11:37 PM

RE: Philco 40-140 Field Coil Replacement - by Ron Ramirez - 02-01-2013, 06:07 AM

RE: Philco 40-140 Field Coil Replacement - by radiola - 02-01-2013, 06:57 AM

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