National NC-125

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National NC-125

Arran
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Posts: 4,913
Threads: 54
Joined: Sep 2008
City: Sandwick, BC, CA

01-19-2021, 09:31 PM

I found some of those ceramic tube caps in a Hallicrafters S-120, which I though may have been responsible for the low volume, so I tried replacing one, an audio coupling cap I think, took the old one, tested it in a resistance-capacitance bridge, and it was fine all thw way up to rated volatge. So apparently they were installing plastic film, or paper mylar caps inside that style of casing by the 1960s.
Regards
Arran

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Messages In This Thread

National NC-125 - by mikethedruid - 01-19-2021, 02:01 PM

RE: National NC-125 - by mikethedruid - 01-19-2021, 06:46 PM

RE: National NC-125 - by Arran - 01-19-2021, 09:31 PM

RE: National NC-125 - by mikethedruid - 01-20-2021, 10:16 AM

RE: National NC-125 - by mikethedruid - 01-20-2021, 10:09 PM

RE: National NC-125 - by mikethedruid - 01-21-2021, 12:53 PM

RE: National NC-125 - by mikethedruid - 01-22-2021, 12:20 AM

RE: National NC-125 - by mikethedruid - 01-22-2021, 08:48 PM

RE: National NC-125 - by EdHolland - 01-23-2021, 12:38 AM

RE: National NC-125 - by mikethedruid - 01-23-2021, 02:05 PM

RE: National NC-125 - by mikethedruid - 01-24-2021, 02:30 AM

RE: National NC-125 - by mikethedruid - 01-27-2021, 11:44 AM

RE: National NC-125 - by Radioroslyn - 01-27-2021, 01:36 PM

RE: National NC-125 - by Eliot Ness - 01-28-2021, 11:24 AM

RE: National NC-125 - by mikethedruid - 01-28-2021, 03:44 PM

RE: National NC-125 - by GarySP - 01-28-2021, 04:29 PM

RE: National NC-125 - by mikethedruid - 01-28-2021, 04:46 PM

RE: National NC-125 - by mikethedruid - 01-29-2021, 09:50 PM

RE: National NC-125 - by Paul Philco322 - 01-29-2021, 11:07 PM

RE: National NC-125 - by MrFixr55 - 04-03-2021, 09:44 AM

RE: National NC-125 - by mikethedruid - 04-03-2021, 05:28 PM

RE: National NC-125 - by Mtmattking - 11-13-2022, 09:44 PM

RE: National NC-125 - by Radioroslyn - 11-14-2022, 02:06 PM

RE: National NC-125 - by Mtmattking - 01-17-2025, 11:56 PM

RE: National NC-125 - by radiorich - 01-18-2025, 01:50 AM

RE: National NC-125 - by Mtmattking - 01-18-2025, 02:01 AM

RE: National NC-125 - by radiorich - 01-18-2025, 03:13 AM

RE: National NC-125 - by morzh - 01-18-2025, 10:46 AM

RE: National NC-125 - by GarySP - 01-18-2025, 11:04 AM

RE: National NC-125 - by radiorich - 01-18-2025, 11:08 AM

RE: National NC-125 - by Mtmattking - 01-18-2025, 07:46 PM

RE: National NC-125 - by GarySP - 01-18-2025, 08:52 PM

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LOL!! Well Arran, if you do dive into it and come across any advice on dealing with accessing components let me know. I...klondike98 — 11:56 PM
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Bob and Gary; I have the further complication on the Phillips that they decided to use some 200 volt rated paper caps...Arran — 10:05 PM
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Thx Arran & Gary. Yes its super crowded in the chassis and I've debated whether to try to restuff caps or not. I t...klondike98 — 07:40 PM
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Bob; I think that the Phillips was actually manufactured in Canada, though they may have imported many of the compone...Arran — 02:28 PM
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Thank for that info Arran! Very interesting. Phillips and Motorola must have made some type of marketing deal back then....klondike98 — 11:49 AM
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