Another project - Philco Tropic 42-788

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Another project - Philco Tropic 42-788

Ron Ramirez
Silent Key

Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana

#32

01-23-2015, 08:51 PM

No doubt about it - the AM oscillator coil is bad.

[Image: http://www.philcoradio.com/images/phorum...88_044.jpg]

The culprit is identified above with a red oval around it.

A closer look:

[Image: http://www.philcoradio.com/images/phorum...88_045.jpg]

The same coil is used for the AM band and for the second band, SW 1 (1.5 to 2.6 mc). It is a single tapped winding, and is open between the top of the coil and the tap. From the tap to the bottom of the coil, it is OK.

I am hoping that I can rewind this coil and make it work again.

Take a look at a partial schematic here (opens in new tab, click to enlarge if necessary depending on your monitor size). It shows the coil in question in red.

--
Ron Ramirez
Ferdinand IN

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Messages In This Thread

Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-01-2015, 05:22 PM

RE: Another project - Philco Tropic 42-788 - by sam - 01-01-2015, 06:43 PM

RE: Another project - Philco Tropic 42-788 - by Eliot Ness - 01-01-2015, 07:09 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-01-2015, 07:53 PM

RE: Another project - Philco Tropic 42-788 - by LASJayhawk - 01-02-2015, 12:04 AM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-02-2015, 07:50 PM

RE: Another project - Philco Tropic 42-788 - by Joeztech - 01-03-2015, 08:56 AM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-04-2015, 10:57 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-08-2015, 10:16 PM

RE: Another project - Philco Tropic 42-788 - by Chuck Schwark - 01-08-2015, 11:05 PM

RE: Another project - Philco Tropic 42-788 - by KCMike - 01-12-2015, 11:56 AM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-12-2015, 10:49 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-13-2015, 11:58 AM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-13-2015, 10:50 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-15-2015, 12:27 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-15-2015, 04:35 PM

RE: Another project - Philco Tropic 42-788 - by KCMike - 01-15-2015, 09:41 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-15-2015, 10:00 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-16-2015, 10:06 PM

RE: Another project - Philco Tropic 42-788 - by sam - 01-17-2015, 02:46 AM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-17-2015, 10:30 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-20-2015, 09:46 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-20-2015, 09:53 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-20-2015, 10:01 PM

RE: Another project - Philco Tropic 42-788 - by LASJayhawk - 01-20-2015, 10:27 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-20-2015, 10:39 PM

RE: Another project - Philco Tropic 42-788 - by Chuck Schwark - 01-21-2015, 10:11 AM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-21-2015, 10:27 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-21-2015, 10:37 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-22-2015, 09:37 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-23-2015, 04:54 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-23-2015, 08:51 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-23-2015, 11:44 PM

RE: Another project - Philco Tropic 42-788 - by sam - 01-24-2015, 01:40 AM

RE: Another project - Philco Tropic 42-788 - by w4rtc - 01-24-2015, 05:23 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-25-2015, 03:19 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-25-2015, 03:29 PM

RE: Another project - Philco Tropic 42-788 - by klondike98 - 01-25-2015, 03:59 PM

RE: Another project - Philco Tropic 42-788 - by KCMike - 01-25-2015, 11:12 PM

RE: Another project - Philco Tropic 42-788 - by Chuck Schwark - 01-26-2015, 02:34 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-26-2015, 05:40 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-27-2015, 03:10 PM

RE: Another project - Philco Tropic 42-788 - by sam - 01-27-2015, 11:21 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-28-2015, 12:21 PM

RE: Another project - Philco Tropic 42-788 - by KCMike - 01-28-2015, 01:08 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-28-2015, 01:34 PM

RE: Another project - Philco Tropic 42-788 - by klondike98 - 01-28-2015, 03:05 PM

RE: Another project - Philco Tropic 42-788 - by Ron Ramirez - 01-28-2015, 03:16 PM

RE: Another project - Philco Tropic 42-788 - by klondike98 - 01-28-2015, 05:09 PM

RE: Another project - Philco Tropic 42-788 - by sam - 01-29-2015, 12:42 AM

RE: Another project - Philco Tropic 42-788 - by Arran - 01-30-2015, 03:08 AM

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