Zenith 12H090

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Zenith 12H090

Arran
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Posts: 4,861
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Joined: Sep 2008
City: Sandwick, BC, CA

#27

12-10-2018, 05:34 AM

Another thing that some manufacturers did, although this would show on the parts list but not the circuit diagram, was to use 1/4 Watt resistors, which probably explains why I run into so many that have drifted upward in resistance over time in certain makes. In many tube circuits 1/4 Watt is just borderline, use at least a 1/2 Watt for replacement.
Regards
Arran

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Zenith 12H090 - by EdHolland - 05-27-2018, 03:11 AM

RE: Zenith 12H090 - by morzh - 05-27-2018, 11:30 AM

RE: Zenith 12H090 - by EdHolland - 05-27-2018, 07:54 PM

RE: Zenith 12H090 - by morzh - 05-27-2018, 11:14 PM

RE: Zenith 12H090 - by EdHolland - 05-29-2018, 01:51 PM

RE: Zenith 12H090 - by Electrothaumaturgist - 05-30-2018, 02:26 PM

RE: Zenith 12H090 - by morzh - 05-30-2018, 04:51 PM

RE: Zenith 12H090 - by Electrothaumaturgist - 05-30-2018, 06:26 PM

RE: Zenith 12H090 - by Arran - 05-31-2018, 04:42 AM

RE: Zenith 12H090 - by EdHolland - 05-31-2018, 04:08 PM

RE: Zenith 12H090 - by Electrothaumaturgist - 06-01-2018, 01:41 AM

RE: Zenith 12H090 - by Arran - 06-01-2018, 02:15 AM

RE: Zenith 12H090 - by Electrothaumaturgist - 06-01-2018, 03:39 AM

RE: Zenith 12H090 - by morzh - 06-01-2018, 07:55 AM

RE: Zenith 12H090 - by EdHolland - 06-01-2018, 12:43 PM

RE: Zenith 12H090 - by Electrothaumaturgist - 06-01-2018, 03:31 PM

RE: Zenith 12H090 - by Arran - 06-02-2018, 03:06 AM

RE: Zenith 12H090 - by Electrothaumaturgist - 06-02-2018, 05:48 AM

RE: Zenith 12H090 - by EdHolland - 10-25-2018, 11:51 PM

RE: Zenith 12H090 - by Arran - 10-27-2018, 04:09 PM

RE: Zenith 12H090 - by jcassity - 10-28-2018, 07:57 PM

RE: Zenith 12H090 - by EdHolland - 12-02-2018, 12:44 PM

RE: Zenith 12H090 - by EdHolland - 12-03-2018, 03:03 AM

RE: Zenith 12H090 - by EdHolland - 12-05-2018, 03:00 PM

RE: Zenith 12H090 - by EdHolland - 12-09-2018, 09:58 PM

RE: Zenith 12H090 - by Ron Ramirez - 12-09-2018, 11:17 PM

RE: Zenith 12H090 - by Arran - 12-10-2018, 05:34 AM

RE: Zenith 12H090 - by morzh - 12-10-2018, 09:20 AM

RE: Zenith 12H090 - by EdHolland - 12-11-2018, 02:05 PM

RE: Zenith 12H090 - by EdHolland - 12-16-2018, 11:45 PM

RE: Zenith 12H090 - by EdHolland - 01-13-2019, 09:37 PM

RE: Zenith 12H090 - by EdHolland - 01-20-2019, 11:20 PM

RE: Zenith 12H090 - by EdHolland - 01-27-2019, 10:35 PM

RE: Zenith 12H090 - by EdHolland - 02-01-2019, 05:06 PM

RE: Zenith 12H090 - by EdHolland - 02-02-2019, 10:26 PM

RE: Zenith 12H090 - by jcassity - 02-03-2019, 01:47 PM

RE: Zenith 12H090 - by EdHolland - 02-03-2019, 05:56 PM

RE: Zenith 12H090 - by EdHolland - 02-03-2019, 07:34 PM

RE: Zenith 12H090 - by jcassity - 02-04-2019, 11:55 AM

RE: Zenith 12H090 - by EdHolland - 02-04-2019, 03:29 PM

RE: Zenith 12H090 - by EdHolland - 02-08-2019, 02:37 PM

RE: Zenith 12H090 - by EdHolland - 02-09-2019, 11:17 PM

RE: Zenith 12H090 - by morzh - 02-10-2019, 11:19 AM

RE: Zenith 12H090 - by EdHolland - 02-11-2019, 04:04 PM

RE: Zenith 12H090 - by EdHolland - 02-12-2019, 01:27 PM

RE: Zenith 12H090 - by EdHolland - 02-18-2019, 02:36 PM

RE: Zenith 12H090 - by EdHolland - 02-23-2019, 03:17 AM

RE: Zenith 12H090 - by OldRestorer - 02-23-2019, 08:14 AM

RE: Zenith 12H090 - by EdHolland - 02-23-2019, 07:17 PM

RE: Zenith 12H090 - by EdHolland - 02-23-2019, 07:34 PM

RE: Zenith 12H090 - by EdHolland - 02-23-2019, 09:10 PM

RE: Zenith 12H090 - by OldRestorer - 02-24-2019, 03:02 PM

RE: Zenith 12H090 - by EdHolland - 02-25-2019, 06:34 PM

RE: Zenith 12H090 - by jcassity - 02-25-2019, 07:31 PM

RE: Zenith 12H090 - by tbone - 02-25-2019, 08:31 PM

RE: Zenith 12H090 - by Arran - 02-26-2019, 06:55 AM

RE: Zenith 12H090 - by EdHolland - 02-26-2019, 09:15 PM

RE: Zenith 12H090 - by OldRestorer - 03-19-2019, 01:01 PM

RE: Zenith 12H090 - by EdHolland - 03-19-2019, 09:36 PM

RE: Zenith 12H090 - by EdHolland - 05-26-2019, 12:46 AM

RE: Zenith 12H090 - by morzh - 05-26-2019, 08:32 AM

RE: Zenith 12H090 - by EdHolland - 05-26-2019, 10:48 AM

RE: Zenith 12H090 - by Eliot Ness - 05-26-2019, 11:11 AM

RE: Zenith 12H090 - by EdHolland - 05-26-2019, 09:22 PM

RE: Zenith 12H090 - by morzh - 05-27-2019, 10:43 AM

RE: Zenith 12H090 - by EdHolland - 05-27-2019, 11:48 AM

RE: Zenith 12H090 - by EdHolland - 01-12-2021, 08:45 PM

RE: Zenith 12H090 - by Arran - 01-13-2021, 12:31 AM

RE: Zenith 12H090 - by EdHolland - 01-13-2021, 11:33 AM

RE: Zenith 12H090 - by EdHolland - 01-16-2021, 09:58 PM

RE: Zenith 12H090 - by EdHolland - 01-21-2021, 08:25 PM

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