Philco 645 Hum-m-m-m

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Philco 645 Hum-m-m-m

TA Forbes
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Posts: 2,353
Threads: 92
Joined: May 2010
City: Clayton, NC

#10

04-09-2014, 10:58 AM

Correct, - side of 58 and 59 go to the end (lead "3") of resistor 64, .09uFd cap 63, and to c.t. of the HV winding of 77. The - side of the can containing 51, 73, and 76 is ground.

Re check solder connection quality for all B+ circuitry, also re check any filter caps that go to ground. A poor solder joint will introduce hum in your set here.

You do nice chassis resto work!!! Icon_thumbup

Also like your diagramming. I do the same, but not as "lifelike" as your drawings are. Icon_clap

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Messages In This Thread

Philco 645 Hum-m-m-m - by Winky Dink - 04-07-2014, 08:21 PM

RE: Philco 645 Hum-m-m-m - by gregb - 04-07-2014, 08:24 PM

RE: Philco 645 Hum-m-m-m - by Warren - 04-07-2014, 09:05 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-07-2014, 09:23 PM

RE: Philco 645 Hum-m-m-m - by Ron Ramirez - 04-08-2014, 05:31 AM

RE: Philco 645 Hum-m-m-m - by morzh - 04-08-2014, 10:10 AM

RE: Philco 645 Hum-m-m-m - by PAradiogeek - 04-08-2014, 11:16 AM

RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-08-2014, 01:26 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-09-2014, 12:54 AM

RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-09-2014, 10:58 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-09-2014, 01:45 PM

RE: Philco 645 Hum-m-m Fixed? - by Winky Dink - 04-12-2014, 10:43 AM

RE: Philco 645 Hum-m-m-m - by Steve Davis - 04-12-2014, 11:36 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-12-2014, 11:57 AM

RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-12-2014, 12:04 PM

RE: Philco 645 Hum-m-m-m - by BrendaAnnD - 04-12-2014, 04:18 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-13-2014, 05:14 AM

RE: Philco 645 Hum-m-m-m - by morzh - 04-13-2014, 09:28 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-14-2014, 01:29 AM

RE: Philco 645 Hum-m-m-m - by morzh - 04-14-2014, 08:23 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-16-2014, 04:28 AM

RE: Philco 645 Hum-m-m-m - by morzh - 04-16-2014, 10:30 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-16-2014, 04:24 PM

RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-16-2014, 04:43 PM

RE: Philco 645 Hum-m-m-m - by morzh - 04-16-2014, 05:05 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-17-2014, 04:54 AM

RE: Philco 645 Hum-m-m-m - by morzh - 04-17-2014, 08:54 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-18-2014, 01:08 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-02-2014, 11:20 PM

RE: Philco 645 Hum-m-m-m - by Arran - 07-03-2014, 12:21 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-03-2014, 01:53 AM

RE: Philco 645 Hum-m-m-m - by morzh - 07-03-2014, 09:45 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-04-2014, 12:37 AM

RE: Philco 645 Yet Another Question - by Winky Dink - 07-05-2014, 11:04 PM

RE: Philco 645 Hum-m-m-m - by morzh - 07-05-2014, 11:09 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-06-2014, 01:57 AM

RE: Philco 645 Hum-m-m-m - by morzh - 07-06-2014, 08:58 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-06-2014, 09:30 AM

RE: Philco 645 Hum-m-m-m - by morzh - 07-06-2014, 10:16 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-07-2014, 08:04 PM

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