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Philco 37-640
#23

I THINK I am finally almost done with the power supply, final amp end. I still have to re-install the big wirewound power resistor, and the tone control / on-off switch. Philco's documentation on this radio leaves MUCH to be desired. Their parts location diagram does not show all the parts clearly, nor does it give a clear indication what all the connections for those parts are. Whoever is responsible for this should have been horsewhipped. It took me HOURS of going back and forth between the schematic, parts diagram, parts list for values, and my own diagrams to finally make any sense of it all. I had a lot of false starts, had to disconnect and remove and reconnect things a number of times. Before I go much further I am going to make some drawings which show these connections more clearly to try to help the next poor soul who ventures upon rebuilding one of these monstrosities.

[Image: https://66.media.tumblr.com/1acfa88df956...55f4ac.jpg]


Messages In This Thread
Philco 37-640 - by mikethedruid - 01-27-2020, 04:03 PM
RE: Philco 37-640 - by morzh - 01-27-2020, 04:23 PM
RE: Philco 37-640 - by mikethedruid - 01-27-2020, 05:10 PM
RE: Philco 37-640 - by mikethedruid - 01-27-2020, 08:44 PM
RE: Philco 37-640 - by truePhilco - 01-27-2020, 09:40 PM
RE: Philco 37-640 - by mikethedruid - 01-27-2020, 11:16 PM
RE: Philco 37-640 - by mikethedruid - 01-30-2020, 12:54 AM
RE: Philco 37-640 - by mikethedruid - 01-30-2020, 11:24 PM
RE: Philco 37-640 - by mikethedruid - 02-01-2020, 10:08 PM
RE: Philco 37-640 - by mikethedruid - 02-02-2020, 04:08 PM
RE: Philco 37-640 - by mikethedruid - 02-03-2020, 09:54 PM
RE: Philco 37-640 - by Jake Blake - 02-04-2020, 01:21 PM
RE: Philco 37-640 - by mikethedruid - 02-04-2020, 08:42 PM
RE: Philco 37-640 - by Steve Davis - 02-04-2020, 10:34 PM
RE: Philco 37-640 - by mikethedruid - 02-04-2020, 11:55 PM
RE: Philco 37-640 - by mikethedruid - 02-04-2020, 11:56 PM
RE: Philco 37-640 - by mikethedruid - 02-06-2020, 07:56 PM
RE: Philco 37-640 - by mikethedruid - 02-06-2020, 10:57 PM
RE: Philco 37-640 - by mikethedruid - 02-07-2020, 12:15 AM
RE: Philco 37-640 - by Jake Blake - 02-07-2020, 07:24 AM
RE: Philco 37-640 - by mikethedruid - 02-07-2020, 04:04 PM
RE: Philco 37-640 - by morzh - 02-07-2020, 04:25 PM
RE: Philco 37-640 - by mikethedruid - 02-09-2020, 02:12 PM
RE: Philco 37-640 - by mikethedruid - 02-11-2020, 12:28 AM
RE: Philco 37-640 - by mikethedruid - 02-11-2020, 10:18 PM
RE: Philco 37-640 - by Jake Blake - 02-11-2020, 10:36 PM
RE: Philco 37-640 - by Nathan Slingerland - 02-11-2020, 11:22 PM
RE: Philco 37-640 - by mikethedruid - 02-12-2020, 02:38 PM
RE: Philco 37-640 - by mikethedruid - 02-12-2020, 09:04 PM
RE: Philco 37-640 - by mikethedruid - 02-13-2020, 09:35 PM
RE: Philco 37-640 - by morzh - 02-13-2020, 09:57 PM
RE: Philco 37-640 - by mikethedruid - 02-13-2020, 10:12 PM
RE: Philco 37-640 - by mikethedruid - 02-13-2020, 10:33 PM
RE: Philco 37-640 - by mikethedruid - 02-18-2020, 08:57 PM
RE: Philco 37-640 - by Jake Blake - 02-18-2020, 10:31 PM
RE: Philco 37-640 - by Nathan Slingerland - 02-18-2020, 10:50 PM
RE: Philco 37-640 - by mikethedruid - 02-19-2020, 01:49 AM
RE: Philco 37-640 - by morzh - 02-19-2020, 08:03 AM
RE: Philco 37-640 - by mikethedruid - 02-20-2020, 04:12 PM
RE: Philco 37-640 - by rfeenstra - 02-20-2020, 06:56 PM
RE: Philco 37-640 - by mikethedruid - 02-20-2020, 07:39 PM
RE: Philco 37-640 - by mikethedruid - 02-22-2020, 06:32 PM
RE: Philco 37-640 - by Jake Blake - 02-22-2020, 06:50 PM
RE: Philco 37-640 - by rfeenstra - 02-22-2020, 08:09 PM
RE: Philco 37-640 - by mikethedruid - 03-06-2020, 06:15 PM
RE: Philco 37-640 - by mikethedruid - 03-07-2020, 03:23 PM
RE: Philco 37-640 - by Jake Blake - 03-07-2020, 07:44 PM
RE: Philco 37-640 - by mikethedruid - 03-09-2020, 07:59 PM
RE: Philco 37-640 - by rfeenstra - 03-09-2020, 08:19 PM



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