Philco 90 restoration

Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed

Thread Rating:

1 Vote(s) - 5 Average
1
2
3
4
5

Linear Mode

Philco 90 restoration

RodB
Phorum Expert

Posts: 1,135
Threads: 46
Joined: Feb 2015
City: Roseville, MN

#103

11-29-2021, 11:57 AM

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.

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

Philco 90 restoration - by Bob Andersen - 09-18-2021, 01:16 AM

RE: Philco 90 restoration - by Ron Ramirez - 09-18-2021, 11:42 AM

RE: Philco 90 restoration - by morzh - 09-18-2021, 03:20 PM

RE: Philco 90 restoration - by Ron Ramirez - 09-18-2021, 03:54 PM

RE: Philco 90 restoration - by klondike98 - 09-18-2021, 04:36 PM

RE: Philco 90 restoration - by Bob Andersen - 09-19-2021, 12:22 AM

RE: Philco 90 restoration - by Bob Andersen - 09-19-2021, 12:32 AM

RE: Philco 90 restoration - by Arran - 09-19-2021, 02:02 AM

RE: Philco 90 restoration - by Bob Andersen - 09-19-2021, 02:30 PM

RE: Philco 90 restoration - by Steve Davis - 09-19-2021, 03:53 PM

RE: Philco 90 restoration - by Bob Andersen - 09-19-2021, 05:18 PM

RE: Philco 90 restoration - by Ron Ramirez - 09-19-2021, 07:55 PM

RE: Philco 90 restoration - by morzh - 09-19-2021, 08:40 PM

RE: Philco 90 restoration - by Steve Davis - 09-19-2021, 09:44 PM

RE: Philco 90 restoration - by morzh - 09-19-2021, 10:06 PM

RE: Philco 90 restoration - by Simon Wa3uay - 09-20-2021, 04:42 PM

RE: Philco 90 restoration - by Bob Andersen - 09-20-2021, 05:35 PM

RE: Philco 90 restoration - by Bob Andersen - 09-20-2021, 05:56 PM

RE: Philco 90 restoration - by Bob Andersen - 09-21-2021, 12:23 AM

RE: Philco 90 restoration - by Bob Andersen - 09-23-2021, 06:52 PM

RE: Philco 90 restoration - by morzh - 09-23-2021, 08:31 PM

RE: Philco 90 restoration - by Bob Andersen - 09-23-2021, 10:39 PM

RE: Philco 90 restoration - by morzh - 09-23-2021, 11:53 PM

RE: Philco 90 restoration - by Steve Davis - 09-24-2021, 10:12 AM

RE: Philco 90 restoration - by madsowry - 09-26-2021, 09:12 PM

RE: Philco 90 restoration - by Bob Andersen - 09-27-2021, 01:42 AM

RE: Philco 90 restoration - by Bob Andersen - 09-27-2021, 07:39 PM

RE: Philco 90 restoration - by mikethedruid - 09-27-2021, 08:34 PM

RE: Philco 90 restoration - by Bob Andersen - 09-27-2021, 09:02 PM

RE: Philco 90 restoration - by Bob Andersen - 10-01-2021, 04:49 PM

RE: Philco 90 restoration - by morzh - 10-01-2021, 06:12 PM

RE: Philco 90 restoration - by MrFixr55 - 10-02-2021, 08:42 AM

RE: Philco 90 restoration - by Greg - 10-03-2021, 12:53 PM

RE: Philco 90 restoration - by Bob Andersen - 10-03-2021, 04:55 PM

RE: Philco 90 restoration - by morzh - 10-03-2021, 11:13 PM

RE: Philco 90 restoration - by Bob Andersen - 10-07-2021, 02:20 AM

RE: Philco 90 restoration - by morzh - 10-07-2021, 08:19 PM

RE: Philco 90 restoration - by Arran - 10-10-2021, 02:38 AM

RE: Philco 90 restoration - by morzh - 10-10-2021, 12:09 PM

RE: Philco 90 restoration - by Bob Andersen - 10-19-2021, 03:15 PM

RE: Philco 90 restoration - by Phlogiston - 10-19-2021, 03:39 PM

RE: Philco 90 restoration - by Arran - 10-21-2021, 02:25 AM

RE: Philco 90 restoration - by morzh - 10-21-2021, 12:19 PM

RE: Philco 90 restoration - by Bob Andersen - 10-23-2021, 02:20 PM

RE: Philco 90 restoration - by Bob Andersen - 10-26-2021, 04:16 PM

RE: Philco 90 restoration - by Paul Philco322 - 10-26-2021, 05:53 PM

RE: Philco 90 restoration - by Ron Ramirez - 10-26-2021, 06:19 PM

RE: Philco 90 restoration - by Bob Andersen - 10-26-2021, 06:52 PM

RE: Philco 90 restoration - by Ron Ramirez - 10-26-2021, 07:28 PM

RE: Philco 90 restoration - by radiorich - 10-26-2021, 08:06 PM

RE: Philco 90 restoration - by Steve Davis - 10-26-2021, 08:22 PM

RE: Philco 90 restoration - by radiorich - 10-26-2021, 09:00 PM

RE: Philco 90 restoration - by Bob Andersen - 10-26-2021, 09:36 PM

RE: Philco 90 restoration - by Bob Andersen - 10-26-2021, 10:18 PM

RE: Philco 90 restoration - by BrendaAnnD - 10-26-2021, 11:02 PM

RE: Philco 90 restoration - by radiorich - 10-26-2021, 11:08 PM

RE: Philco 90 restoration - by Steve Davis - 10-26-2021, 11:34 PM

RE: Philco 90 restoration - by radiorich - 10-26-2021, 11:58 PM

RE: Philco 90 restoration - by Bob Andersen - 10-27-2021, 12:08 AM

RE: Philco 90 restoration - by Bob Andersen - 10-27-2021, 05:44 PM

RE: Philco 90 restoration - by Bob Andersen - 10-27-2021, 07:14 PM

RE: Philco 90 restoration - by radiorich - 10-27-2021, 07:38 PM

RE: Philco 90 restoration - by Bob Andersen - 10-29-2021, 05:02 PM

RE: Philco 90 restoration - by morzh - 10-29-2021, 09:15 PM

RE: Philco 90 restoration - by Bob Andersen - 10-30-2021, 12:54 AM

RE: Philco 90 restoration - by radiorich - 10-30-2021, 01:31 AM

RE: Philco 90 restoration - by Arran - 11-02-2021, 08:09 PM

RE: Philco 90 restoration - by Bob Andersen - 11-03-2021, 01:11 AM

RE: Philco 90 restoration - by Bob Andersen - 11-03-2021, 10:35 PM

RE: Philco 90 restoration - by radiorich - 11-04-2021, 01:02 AM

RE: Philco 90 restoration - by Bob Andersen - 11-04-2021, 01:26 PM

RE: Philco 90 restoration - by Bob Andersen - 11-06-2021, 01:32 AM

RE: Philco 90 restoration - by radiorich - 11-06-2021, 01:53 PM

RE: Philco 90 restoration - by OZ4 - 11-06-2021, 07:22 PM

RE: Philco 90 restoration - by Bob Andersen - 11-10-2021, 02:21 AM

RE: Philco 90 restoration - by Bob Andersen - 11-17-2021, 05:35 PM

RE: Philco 90 restoration - by Bob Andersen - 11-17-2021, 06:13 PM

RE: Philco 90 restoration - by Bob Andersen - 11-17-2021, 06:55 PM

RE: Philco 90 restoration - by Bob Andersen - 11-17-2021, 07:45 PM

RE: Philco 90 restoration - by Bob Andersen - 11-19-2021, 11:58 AM

RE: Philco 90 restoration - by Steve Davis - 11-19-2021, 12:24 PM

RE: Philco 90 restoration - by Steve Davis - 11-19-2021, 12:37 PM

RE: Philco 90 restoration - by Bob Andersen - 11-19-2021, 02:11 PM

RE: Philco 90 restoration - by Steve Davis - 11-19-2021, 04:33 PM

RE: Philco 90 restoration - by Phlogiston - 11-20-2021, 12:05 PM

RE: Philco 90 restoration - by radiorich - 11-20-2021, 12:42 PM

RE: Philco 90 restoration - by cknob - 11-23-2021, 04:23 PM

RE: Philco 90 restoration - by Bob Andersen - 11-25-2021, 02:33 AM

RE: Philco 90 restoration - by cknob - 11-25-2021, 10:30 AM

RE: Philco 90 restoration - by Bob Andersen - 11-26-2021, 10:29 PM

RE: Philco 90 restoration - by morzh - 11-26-2021, 11:44 PM

RE: Philco 90 restoration - by Arran - 11-28-2021, 08:33 AM

RE: Philco 90 restoration - by Bob Andersen - 11-28-2021, 03:14 PM

RE: Philco 90 restoration - by Bob Andersen - 11-29-2021, 03:36 AM

RE: Philco 90 restoration - by cknob - 11-29-2021, 08:51 AM

RE: Philco 90 restoration - by radiorich - 11-29-2021, 09:06 AM

RE: Philco 90 restoration - by cknob - 11-29-2021, 10:03 AM

RE: Philco 90 restoration - by RodB - 11-29-2021, 10:43 AM

RE: Philco 90 restoration - by mikethedruid - 11-29-2021, 10:44 AM

RE: Philco 90 restoration - by RodB - 11-29-2021, 10:54 AM

RE: Philco 90 restoration - by Bob Andersen - 11-29-2021, 11:08 AM

RE: Philco 90 restoration - by cknob - 11-29-2021, 11:21 AM

RE: Philco 90 restoration - by RodB - 11-29-2021, 11:57 AM

RE: Philco 90 restoration - by morzh - 11-29-2021, 01:15 PM

RE: Philco 90 restoration - by Steve Davis - 11-29-2021, 01:54 PM

RE: Philco 90 restoration - by Bob Andersen - 11-29-2021, 05:30 PM

RE: Philco 90 restoration - by Ron Ramirez - 11-29-2021, 07:07 PM

RE: Philco 90 restoration - by cknob - 12-01-2021, 03:39 PM

RE: Philco 90 restoration - by Steve Davis - 12-01-2021, 09:23 PM

RE: Philco 90 restoration - by Ron Ramirez - 12-01-2021, 10:08 PM

RE: Philco 90 restoration - by Steve Davis - 12-01-2021, 10:47 PM

RE: Philco 90 restoration - by cknob - 12-02-2021, 08:22 AM

RE: Philco 90 restoration - by Arran - 12-04-2021, 04:19 AM

RE: Philco 90 restoration - by Simon Wa3uay - 12-04-2021, 11:29 AM

RE: Philco 90 restoration - by Bob Andersen - 12-09-2021, 02:21 AM

RE: Philco 90 restoration - by radiorich - 12-09-2021, 02:29 AM

View a Printable Version

Users browsing this thread: 7 Guest(s)

Recent Posts
PT-6 finished!!
Actually the Loctal tube series, with number beginning with "14" are 12.6 volt tubes, at 150 ma, I'm not sure ...Arran — 02:14 AM
philco predicta
The model is the holiday without UHF It has no sound and I don't have an oscilloscope or signal generator.cgl18 — 08:51 PM
Philco model 38 code 121 not receiving signal.
I will definitely check my lead length and wire dressing. Thanks for the ideas.Stormlord5500 — 08:06 PM
Philco model 38 code 121 not receiving signal.
Do make sure that you twist the 3 wires from the chassis to the transformer, and dress away from tubes, especially audio...MrFixr55 — 07:38 PM
Philco model 38 code 121 not receiving signal.
The cone unfortunately got damaged when I removed it. The glue that held the cone to the basket was sloppily applied and...Stormlord5500 — 07:12 PM
Philco model 38 code 121 not receiving signal.
So what was wrong with the original speaker? Was the cone damaged? Unless it's totally hopeless I would put it aside as ...Arran — 05:31 PM
My collection presentation
There is an article on my site that introduces the first portable radios in my collection. I have only provided a link t...Vlad95 — 01:17 PM
Electrolytic restuffing/internals
Bridkarl This specific cap you have is the easiset type to restuff. I usually cut it at the upper border of the depr...morzh — 11:35 AM
philco predicta
Hi CGL18, First off, welcome to the Philco Phorum. I have not worked on a TV for a while but here are some givens: ...MrFixr55 — 08:22 AM
Another amp build - here I go again!
Sweet! I actually have a Dynaco Mark 4 that I had been running with 6L6s with no mods. Seemed to my 14-year-old head a...MrFixr55 — 12:57 AM

Who's Online

There are currently 1125 online users. [Complete List]
» 2 Member(s) | 1123 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me