Philco 645 Hum-m-m-m

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Philco 645 Hum-m-m-m

Steve Davis
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Posts: 1,395
Threads: 69
Joined: Oct 2007
City: Linn Creek, MO

#13

04-12-2014, 10:36 AM

You don't want to go up too much on 59 or you will stress the rectifier. But go ahead and increase 58 some.

Have you replaced all the capacitors? Capacitors 50, 51, and 62 could cause a low voltage on the plat of the 85 tube. Also check the value of resisters 48 and 49.

Steve

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Messages In This Thread

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

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

RE: Philco 645 Hum-m-m-m - by Warren - 04-07-2014, 08:05 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-07-2014, 08:23 PM

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

RE: Philco 645 Hum-m-m-m - by morzh - 04-08-2014, 09:10 AM

RE: Philco 645 Hum-m-m-m - by PAradiogeek - 04-08-2014, 10:16 AM

RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-08-2014, 12:26 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-08-2014, 11:54 PM

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

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-09-2014, 12:45 PM

RE: Philco 645 Hum-m-m Fixed? - by Winky Dink - 04-12-2014, 09:43 AM

RE: Philco 645 Hum-m-m-m - by Steve Davis - 04-12-2014, 10:36 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-12-2014, 10:57 AM

RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-12-2014, 11:04 AM

RE: Philco 645 Hum-m-m-m - by BrendaAnnD - 04-12-2014, 03:18 PM

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

RE: Philco 645 Hum-m-m-m - by morzh - 04-13-2014, 08:28 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-14-2014, 12:29 AM

RE: Philco 645 Hum-m-m-m - by morzh - 04-14-2014, 07:23 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-16-2014, 03:28 AM

RE: Philco 645 Hum-m-m-m - by morzh - 04-16-2014, 09:30 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-16-2014, 03:24 PM

RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-16-2014, 03:43 PM

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

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-17-2014, 03:54 AM

RE: Philco 645 Hum-m-m-m - by morzh - 04-17-2014, 07:54 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-18-2014, 12:08 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-02-2014, 10:20 PM

RE: Philco 645 Hum-m-m-m - by Arran - 07-02-2014, 11:21 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-03-2014, 12:53 AM

RE: Philco 645 Hum-m-m-m - by morzh - 07-03-2014, 08:45 AM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-03-2014, 11:37 PM

RE: Philco 645 Yet Another Question - by Winky Dink - 07-05-2014, 10:04 PM

RE: Philco 645 Hum-m-m-m - by morzh - 07-05-2014, 10:09 PM

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-06-2014, 12:57 AM

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

RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-06-2014, 08:30 AM

RE: Philco 645 Hum-m-m-m - by morzh - 07-06-2014, 09:16 AM

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

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