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Philco 90 restoration

Although the theoretical value might be 110pf the actual value of any one mica would vary because manufacturing techniques weren't as precise as the theory. The same with other components such as resistors and coils. So maybe the specific circuit of a specific radio ended up requiring 114pf. The assembler would find one that worked the best. Maybe the next radio would need a 108pf. They were customized for the radio.


Messages In This Thread
Philco 90 restoration - by Bob Andersen - 09-18-2021, 12:16 AM
RE: Philco 90 restoration - by Ron Ramirez - 09-18-2021, 10:42 AM
RE: Philco 90 restoration - by morzh - 09-18-2021, 02:20 PM
RE: Philco 90 restoration - by Ron Ramirez - 09-18-2021, 02:54 PM
RE: Philco 90 restoration - by klondike98 - 09-18-2021, 03:36 PM
RE: Philco 90 restoration - by Bob Andersen - 09-18-2021, 11:22 PM
RE: Philco 90 restoration - by Bob Andersen - 09-18-2021, 11:32 PM
RE: Philco 90 restoration - by Arran - 09-19-2021, 01:02 AM
RE: Philco 90 restoration - by Bob Andersen - 09-19-2021, 01:30 PM
RE: Philco 90 restoration - by Steve Davis - 09-19-2021, 02:53 PM
RE: Philco 90 restoration - by Bob Andersen - 09-19-2021, 04:18 PM
RE: Philco 90 restoration - by Ron Ramirez - 09-19-2021, 06:55 PM
RE: Philco 90 restoration - by morzh - 09-19-2021, 07:40 PM
RE: Philco 90 restoration - by Steve Davis - 09-19-2021, 08:44 PM
RE: Philco 90 restoration - by morzh - 09-19-2021, 09:06 PM
RE: Philco 90 restoration - by Simon Wa3uay - 09-20-2021, 03:42 PM
RE: Philco 90 restoration - by Bob Andersen - 09-20-2021, 04:35 PM
RE: Philco 90 restoration - by Bob Andersen - 09-20-2021, 04:56 PM
RE: Philco 90 restoration - by Bob Andersen - 09-20-2021, 11:23 PM
RE: Philco 90 restoration - by Bob Andersen - 09-23-2021, 05:52 PM
RE: Philco 90 restoration - by morzh - 09-23-2021, 07:31 PM
RE: Philco 90 restoration - by Bob Andersen - 09-23-2021, 09:39 PM
RE: Philco 90 restoration - by morzh - 09-23-2021, 10:53 PM
RE: Philco 90 restoration - by Steve Davis - 09-24-2021, 09:12 AM
RE: Philco 90 restoration - by madsowry - 09-26-2021, 08:12 PM
RE: Philco 90 restoration - by Bob Andersen - 09-27-2021, 12:42 AM
RE: Philco 90 restoration - by Bob Andersen - 09-27-2021, 06:39 PM
RE: Philco 90 restoration - by mikethedruid - 09-27-2021, 07:34 PM
RE: Philco 90 restoration - by Bob Andersen - 09-27-2021, 08:02 PM
RE: Philco 90 restoration - by Bob Andersen - 10-01-2021, 03:49 PM
RE: Philco 90 restoration - by morzh - 10-01-2021, 05:12 PM
RE: Philco 90 restoration - by MrFixr55 - 10-02-2021, 07:42 AM
RE: Philco 90 restoration - by Greg - 10-03-2021, 11:53 AM
RE: Philco 90 restoration - by Bob Andersen - 10-03-2021, 03:55 PM
RE: Philco 90 restoration - by morzh - 10-03-2021, 10:13 PM
RE: Philco 90 restoration - by Bob Andersen - 10-07-2021, 01:20 AM
RE: Philco 90 restoration - by morzh - 10-07-2021, 07:19 PM
RE: Philco 90 restoration - by Arran - 10-10-2021, 01:38 AM
RE: Philco 90 restoration - by morzh - 10-10-2021, 11:09 AM
RE: Philco 90 restoration - by Bob Andersen - 10-19-2021, 02:15 PM
RE: Philco 90 restoration - by Phlogiston - 10-19-2021, 02:39 PM
RE: Philco 90 restoration - by Arran - 10-21-2021, 01:25 AM
RE: Philco 90 restoration - by morzh - 10-21-2021, 11:19 AM
RE: Philco 90 restoration - by Bob Andersen - 10-23-2021, 01:20 PM
RE: Philco 90 restoration - by Bob Andersen - 10-26-2021, 03:16 PM
RE: Philco 90 restoration - by Paul Philco322 - 10-26-2021, 04:53 PM
RE: Philco 90 restoration - by Ron Ramirez - 10-26-2021, 05:19 PM
RE: Philco 90 restoration - by Bob Andersen - 10-26-2021, 05:52 PM
RE: Philco 90 restoration - by Ron Ramirez - 10-26-2021, 06:28 PM
RE: Philco 90 restoration - by radiorich - 10-26-2021, 07:06 PM
RE: Philco 90 restoration - by Steve Davis - 10-26-2021, 07:22 PM
RE: Philco 90 restoration - by radiorich - 10-26-2021, 08:00 PM
RE: Philco 90 restoration - by Bob Andersen - 10-26-2021, 08:36 PM
RE: Philco 90 restoration - by Bob Andersen - 10-26-2021, 09:18 PM
RE: Philco 90 restoration - by BrendaAnnD - 10-26-2021, 10:02 PM
RE: Philco 90 restoration - by radiorich - 10-26-2021, 10:08 PM
RE: Philco 90 restoration - by Steve Davis - 10-26-2021, 10:34 PM
RE: Philco 90 restoration - by radiorich - 10-26-2021, 10:58 PM
RE: Philco 90 restoration - by Bob Andersen - 10-26-2021, 11:08 PM
RE: Philco 90 restoration - by Bob Andersen - 10-27-2021, 04:44 PM
RE: Philco 90 restoration - by Bob Andersen - 10-27-2021, 06:14 PM
RE: Philco 90 restoration - by radiorich - 10-27-2021, 06:38 PM
RE: Philco 90 restoration - by Bob Andersen - 10-29-2021, 04:02 PM
RE: Philco 90 restoration - by morzh - 10-29-2021, 08:15 PM
RE: Philco 90 restoration - by Bob Andersen - 10-29-2021, 11:54 PM
RE: Philco 90 restoration - by radiorich - 10-30-2021, 12:31 AM
RE: Philco 90 restoration - by Arran - 11-02-2021, 07:09 PM
RE: Philco 90 restoration - by Bob Andersen - 11-03-2021, 12:11 AM
RE: Philco 90 restoration - by Bob Andersen - 11-03-2021, 09:35 PM
RE: Philco 90 restoration - by radiorich - 11-04-2021, 12:02 AM
RE: Philco 90 restoration - by Bob Andersen - 11-04-2021, 12:26 PM
RE: Philco 90 restoration - by Bob Andersen - 11-06-2021, 12:32 AM
RE: Philco 90 restoration - by radiorich - 11-06-2021, 12:53 PM
RE: Philco 90 restoration - by OZ4 - 11-06-2021, 06:22 PM
RE: Philco 90 restoration - by Bob Andersen - 11-10-2021, 01:21 AM
RE: Philco 90 restoration - by Bob Andersen - 11-17-2021, 04:35 PM
RE: Philco 90 restoration - by Bob Andersen - 11-17-2021, 05:13 PM
RE: Philco 90 restoration - by Bob Andersen - 11-17-2021, 05:55 PM
RE: Philco 90 restoration - by Bob Andersen - 11-17-2021, 06:45 PM
RE: Philco 90 restoration - by Bob Andersen - 11-19-2021, 10:58 AM
RE: Philco 90 restoration - by Steve Davis - 11-19-2021, 11:24 AM
RE: Philco 90 restoration - by Steve Davis - 11-19-2021, 11:37 AM
RE: Philco 90 restoration - by Bob Andersen - 11-19-2021, 01:11 PM
RE: Philco 90 restoration - by Steve Davis - 11-19-2021, 03:33 PM
RE: Philco 90 restoration - by Phlogiston - 11-20-2021, 11:05 AM
RE: Philco 90 restoration - by radiorich - 11-20-2021, 11:42 AM
RE: Philco 90 restoration - by cknob - 11-23-2021, 03:23 PM
RE: Philco 90 restoration - by Bob Andersen - 11-25-2021, 01:33 AM
RE: Philco 90 restoration - by cknob - 11-25-2021, 09:30 AM
RE: Philco 90 restoration - by Bob Andersen - 11-26-2021, 09:29 PM
RE: Philco 90 restoration - by morzh - 11-26-2021, 10:44 PM
RE: Philco 90 restoration - by Arran - 11-28-2021, 07:33 AM
RE: Philco 90 restoration - by Bob Andersen - 11-28-2021, 02:14 PM
RE: Philco 90 restoration - by Bob Andersen - 11-29-2021, 02:36 AM
RE: Philco 90 restoration - by cknob - 11-29-2021, 07:51 AM
RE: Philco 90 restoration - by radiorich - 11-29-2021, 08:06 AM
RE: Philco 90 restoration - by cknob - 11-29-2021, 09:03 AM
RE: Philco 90 restoration - by RodB - 11-29-2021, 09:43 AM
RE: Philco 90 restoration - by mikethedruid - 11-29-2021, 09:44 AM
RE: Philco 90 restoration - by RodB - 11-29-2021, 09:54 AM
RE: Philco 90 restoration - by Bob Andersen - 11-29-2021, 10:08 AM
RE: Philco 90 restoration - by cknob - 11-29-2021, 10:21 AM
RE: Philco 90 restoration - by RodB - 11-29-2021, 10:57 AM
RE: Philco 90 restoration - by morzh - 11-29-2021, 12:15 PM
RE: Philco 90 restoration - by Steve Davis - 11-29-2021, 12:54 PM
RE: Philco 90 restoration - by Bob Andersen - 11-29-2021, 04:30 PM
RE: Philco 90 restoration - by Ron Ramirez - 11-29-2021, 06:07 PM
RE: Philco 90 restoration - by cknob - 12-01-2021, 02:39 PM
RE: Philco 90 restoration - by Steve Davis - 12-01-2021, 08:23 PM
RE: Philco 90 restoration - by Ron Ramirez - 12-01-2021, 09:08 PM
RE: Philco 90 restoration - by Steve Davis - 12-01-2021, 09:47 PM
RE: Philco 90 restoration - by cknob - 12-02-2021, 07:22 AM
RE: Philco 90 restoration - by Arran - 12-04-2021, 03:19 AM
RE: Philco 90 restoration - by Simon Wa3uay - 12-04-2021, 10:29 AM
RE: Philco 90 restoration - by Bob Andersen - 12-09-2021, 01:21 AM
RE: Philco 90 restoration - by radiorich - 12-09-2021, 01:29 AM



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