Hallicrafters S53-A

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Hallicrafters S53-A

jcassity
Senior Member

Posts: 640
Threads: 48
Joined: Mar 2017
City: Gap Mills Wv 24941

#19

12-23-2017, 10:29 PM

same problem,, all day messing with it.

my 240vdc output of my rectifier tube quickly drops down to 60 or so vdc after about 20 seconds. the 1kohm resistor down along the filter caps gets wayyyyy toooooo hot so i have to shut down.

when i isolate out the circuit i show in the diagram above, my 240vdc stays steady after warm up.

when i reconnect this branch, i then cut the terminal on C40 100pf cap on pin 1 of the OSC 6c4 , this isolates out the tuning cap and this one C40 cap..... same problem. my rectifier output voltage dives down to about 60vdc during warm up.

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Messages In This Thread

Hallicrafters S53-A - by jcassity - 12-18-2017, 10:35 PM

RE: Hallicrafters S53-A - by Paul Philco322 - 12-19-2017, 10:15 PM

RE: Hallicrafters S53-A - by Arran - 12-21-2017, 01:35 AM

RE: Hallicrafters S53-A - by jcassity - 12-21-2017, 10:42 AM

RE: Hallicrafters S53-A - by jcassity - 12-21-2017, 12:02 PM

RE: Hallicrafters S53-A - by jcassity - 12-21-2017, 12:31 PM

RE: Hallicrafters S53-A - by jcassity - 12-21-2017, 03:07 PM

RE: Hallicrafters S53-A - by jcassity - 12-21-2017, 07:21 PM

RE: Hallicrafters S53-A - by jcassity - 12-21-2017, 07:23 PM

RE: Hallicrafters S53-A - by jcassity - 12-21-2017, 07:30 PM

RE: Hallicrafters S53-A - by jcassity - 12-21-2017, 07:32 PM

RE: Hallicrafters S53-A - by Paul Philco322 - 12-21-2017, 11:09 PM

RE: Hallicrafters S53-A - by jcassity - 12-22-2017, 05:02 PM

RE: Hallicrafters S53-A - by jcassity - 12-22-2017, 10:57 PM

RE: Hallicrafters S53-A - by Radioroslyn - 12-22-2017, 11:32 PM

RE: Hallicrafters S53-A - by jcassity - 12-23-2017, 01:22 AM

RE: Hallicrafters S53-A - by jcassity - 12-23-2017, 08:48 AM

RE: Hallicrafters S53-A - by jcassity - 12-23-2017, 11:19 AM

RE: Hallicrafters S53-A - by jcassity - 12-23-2017, 10:29 PM

RE: Hallicrafters S53-A - by Radioroslyn - 12-25-2017, 01:36 PM

RE: Hallicrafters S53-A - by jcassity - 12-26-2017, 10:27 AM

RE: Hallicrafters S53-A - by Radioroslyn - 12-26-2017, 12:08 PM

RE: Hallicrafters S53-A - by jcassity - 12-26-2017, 07:27 PM

RE: Hallicrafters S53-A - by jcassity - 12-27-2017, 01:58 PM

RE: Hallicrafters S53-A - by jcassity - 12-27-2017, 02:10 PM

RE: Hallicrafters S53-A - by jcassity - 12-27-2017, 09:48 PM

RE: Hallicrafters S53-A - by jcassity - 12-27-2017, 09:54 PM

RE: Hallicrafters S53-A - by jcassity - 12-28-2017, 12:20 PM

RE: Hallicrafters S53-A - by vinzer - 12-28-2017, 04:10 PM

RE: Hallicrafters S53-A - by Radioroslyn - 12-28-2017, 10:05 PM

RE: Hallicrafters S53-A - by jcassity - 12-30-2017, 08:05 PM

RE: Hallicrafters S53-A - by Radioroslyn - 12-31-2017, 12:27 AM

RE: Hallicrafters S53-A - by jcassity - 12-31-2017, 10:06 AM

RE: Hallicrafters S53-A - by jcassity - 01-01-2018, 01:51 PM

RE: Hallicrafters S53-A - by jcassity - 01-01-2018, 09:09 PM

RE: Hallicrafters S53-A - by jcassity - 01-02-2018, 01:52 PM

RE: Hallicrafters S53-A - by jcassity - 01-03-2018, 01:41 PM

RE: Hallicrafters S53-A - by Kenneth F. Besso Jr. - 01-03-2018, 08:56 PM

RE: Hallicrafters S53-A - by jcassity - 01-04-2018, 06:50 PM

RE: Hallicrafters S53-A - by Kenneth F. Besso Jr. - 01-04-2018, 07:39 PM

RE: Hallicrafters S53-A - by Eliot Ness - 01-05-2018, 10:53 AM

RE: Hallicrafters S53-A - by tbone - 01-06-2018, 06:36 PM

RE: Hallicrafters S53-A - by jcassity - 01-08-2018, 01:33 PM

RE: Hallicrafters S53-A - by jcassity - 01-11-2018, 09:27 AM

RE: Hallicrafters S53-A - by jcassity - 01-11-2018, 12:31 PM

RE: Hallicrafters S53-A - by jcassity - 01-11-2018, 04:13 PM

RE: Hallicrafters S53-A - by tbone - 01-12-2018, 05:06 AM

RE: Hallicrafters S53-A - by jcassity - 01-12-2018, 10:04 AM

RE: Hallicrafters S53-A - by jcassity - 01-12-2018, 10:20 AM

RE: Hallicrafters S53-A - by tbone - 01-12-2018, 11:56 AM

RE: Hallicrafters S53-A - by jcassity - 01-13-2018, 11:17 AM

RE: Hallicrafters S53-A - by jcassity - 01-13-2018, 10:52 PM

RE: Hallicrafters S53-A - by jcassity - 01-16-2018, 12:08 PM

RE: Hallicrafters S53-A - by jcassity - 01-16-2018, 12:48 PM

RE: Hallicrafters S53-A - by jcassity - 01-17-2018, 05:31 PM

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