1949 Motorola 5A9M

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1949 Motorola 5A9M

RodB
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Posts: 1,190
Threads: 46
Joined: Feb 2015
City: Roseville, MN

#20

05-25-2025, 08:10 PM

That's the Philco rf trap in a foreign radio. Resonant somewhere around the IF, it's a short to ground. You can just replace it with the cap or wind about 8 turns of insulated 20 AWG wire around the new cap, being sure to connect them in series.

(This post was last modified: 05-25-2025, 08:12 PM by RodB.)

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Messages In This Thread

1949 Motorola 5A9M - by klondike98 - 05-10-2025, 01:36 AM

RE: 1949 Motorola 5A9M - by Joe Rossi - 05-16-2025, 07:56 PM

RE: 1949 Motorola 5A9M - by Arran - 05-19-2025, 12:41 AM

RE: 1949 Motorola 5A9M - by Arran - 05-20-2025, 07:48 PM

RE: 1949 Motorola 5A9M - by klondike98 - 05-22-2025, 11:49 AM

RE: 1949 Motorola 5A9M - by klondike98 - 05-22-2025, 12:22 PM

RE: 1949 Motorola 5A9M - by Arran - 05-22-2025, 02:28 PM

RE: 1949 Motorola 5A9M - by GarySP - 05-22-2025, 05:46 PM

RE: 1949 Motorola 5A9M - by klondike98 - 05-22-2025, 07:40 PM

RE: 1949 Motorola 5A9M - by Arran - 05-22-2025, 10:05 PM

RE: 1949 Motorola 5A9M - by klondike98 - 05-22-2025, 11:56 PM

RE: 1949 Motorola 5A9M - by GarySP - 05-23-2025, 12:18 PM

RE: 1949 Motorola 5A9M - by MrFixr55 - 05-23-2025, 10:15 PM

RE: 1949 Motorola 5A9M - by klondike98 - 05-24-2025, 02:25 PM

RE: 1949 Motorola 5A9M - by klondike98 - 05-24-2025, 11:47 PM

RE: 1949 Motorola 5A9M - by Arran - 05-25-2025, 01:02 AM

RE: 1949 Motorola 5A9M - by radiorich - 05-25-2025, 02:04 AM

RE: 1949 Motorola 5A9M - by klondike98 - 05-25-2025, 01:02 PM

RE: 1949 Motorola 5A9M - by klondike98 - 05-25-2025, 06:39 PM

RE: 1949 Motorola 5A9M - by RodB - 05-25-2025, 08:10 PM

RE: 1949 Motorola 5A9M - by radiorich - 05-26-2025, 12:43 AM

RE: 1949 Motorola 5A9M - by klondike98 - 05-26-2025, 12:48 AM

RE: 1949 Motorola 5A9M - by Arran - 05-26-2025, 03:44 AM

RE: 1949 Motorola 5A9M - by Arran - 05-27-2025, 02:07 AM

RE: 1949 Motorola 5A9M - by klondike98 - 05-27-2025, 10:45 AM

RE: 1949 Motorola 5A9M - by klondike98 - 05-27-2025, 11:34 AM

RE: 1949 Motorola 5A9M - by RodB - 05-27-2025, 01:54 PM

RE: 1949 Motorola 5A9M - by Vlad95 - 05-27-2025, 02:14 PM

RE: 1949 Motorola 5A9M - by klondike98 - 05-27-2025, 03:00 PM

RE: 1949 Motorola 5A9M - by klondike98 - 06-05-2025, 10:45 PM

RE: 1949 Motorola 5A9M - by RodB - 06-06-2025, 11:32 AM

RE: 1949 Motorola 5A9M - by klondike98 - 06-06-2025, 07:28 PM

RE: 1949 Motorola 5A9M - by radiorich - 06-06-2025, 08:20 PM

RE: 1949 Motorola 5A9M - by MrFixr55 - 06-06-2025, 11:24 PM

RE: 1949 Motorola 5A9M - by radiorich - 06-07-2025, 12:33 AM

RE: 1949 Motorola 5A9M - by sam - 06-07-2025, 02:12 AM

RE: 1949 Motorola 5A9M - by klondike98 - 06-07-2025, 02:07 PM

RE: 1949 Motorola 5A9M - by Paul Philco322 - 06-07-2025, 02:17 PM

RE: 1949 Motorola 5A9M - by Vlad95 - 06-07-2025, 03:50 PM

RE: 1949 Motorola 5A9M - by klondike98 - 06-11-2025, 12:00 AM

RE: 1949 Motorola 5A9M - by Arran - 06-11-2025, 12:56 AM

RE: 1949 Motorola 5A9M - by klondike98 - 06-11-2025, 03:58 AM

RE: 1949 Motorola 5A9M - by Vlad95 - 06-11-2025, 12:19 PM

RE: 1949 Motorola 5A9M - by Arran - 06-11-2025, 06:18 PM

RE: 1949 Motorola 5A9M - by Vlad95 - 06-13-2025, 02:13 PM

RE: 1949 Motorola 5A9M - by Arran - 06-13-2025, 04:54 PM

RE: 1949 Motorola 5A9M - by klondike98 - 06-13-2025, 06:54 PM

RE: 1949 Motorola 5A9M - by Vlad95 - 06-13-2025, 06:57 PM

RE: 1949 Motorola 5A9M - by Arran - 06-13-2025, 11:18 PM

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