Philco 604C Electronic Restoration

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Philco 604C Electronic Restoration

Ron Ramirez
Silent Key

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

#34

06-22-2015, 07:02 PM

Okay.

* Tried feeding an audio signal from the computer at my workbench. Audio was very low and distorted.
* Tried disconnecting the 604's speaker voice coil lead and connecting a test speaker. Audio was very low and slightly distorted.

I'm at a standstill on this one, and I must confess that I can't figure this one out. Why the voltages are OK, the tubes are OK, yet the thing plays very low is quite puzzling.

--
Ron Ramirez
Ferdinand IN

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Philco 604C Electronic Restoration - by Ron Ramirez - 06-05-2015, 05:57 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-05-2015, 06:07 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-05-2015, 06:10 PM

RE: Philco 604C Electronic Restoration - by mikethedruid - 06-05-2015, 08:10 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-05-2015, 10:36 PM

RE: Philco 604C Electronic Restoration - by Radioroslyn - 06-05-2015, 09:44 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-14-2015, 07:04 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-14-2015, 07:12 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-14-2015, 07:16 PM

RE: Philco 604C Electronic Restoration - by Crist Rigotti - 06-14-2015, 07:18 PM

RE: Philco 604C Electronic Restoration - by sam - 06-14-2015, 09:43 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-15-2015, 07:41 PM

RE: Philco 604C Electronic Restoration - by Arran - 06-16-2015, 11:54 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-17-2015, 05:02 AM

RE: Philco 604C Electronic Restoration - by KCMike - 06-17-2015, 05:20 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-17-2015, 07:33 PM

RE: Philco 604C Electronic Restoration - by KCMike - 06-18-2015, 04:41 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-18-2015, 08:00 PM

RE: Philco 604C Electronic Restoration - by KCMike - 06-18-2015, 08:43 PM

RE: Philco 604C Electronic Restoration - by Arran - 06-18-2015, 11:07 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-19-2015, 05:16 AM

RE: Philco 604C Electronic Restoration - by GarySP - 06-19-2015, 08:03 AM

RE: Philco 604C Electronic Restoration - by Radioroslyn - 06-19-2015, 04:09 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-19-2015, 04:41 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-19-2015, 08:20 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-20-2015, 10:16 AM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-20-2015, 10:24 AM

RE: Philco 604C Electronic Restoration - by KCMike - 06-20-2015, 12:43 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-20-2015, 02:38 PM

RE: Philco 604C Electronic Restoration - by Radioroslyn - 06-21-2015, 05:35 AM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-21-2015, 09:10 AM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-21-2015, 09:12 AM

RE: Philco 604C Electronic Restoration - by Radioroslyn - 06-21-2015, 10:37 AM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-22-2015, 07:02 PM

RE: Philco 604C Electronic Restoration - by Radioroslyn - 06-22-2015, 09:03 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-24-2015, 07:05 PM

RE: Philco 604C Electronic Restoration - by Radioroslyn - 06-25-2015, 05:37 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 06-29-2015, 05:15 PM

RE: Philco 604C Electronic Restoration - by Kenneth F. Besso Jr. - 06-30-2015, 05:33 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 07-01-2015, 06:57 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 07-04-2015, 04:31 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 07-04-2015, 04:35 PM

RE: Philco 604C Electronic Restoration - by Crist Rigotti - 07-04-2015, 05:45 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 07-04-2015, 11:09 PM

RE: Philco 604C Electronic Restoration - by TA Forbes - 07-05-2015, 11:38 AM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 07-05-2015, 07:24 PM

RE: Philco 604C Electronic Restoration - by TA Forbes - 07-05-2015, 07:58 PM

RE: Philco 604C Electronic Restoration - by KCMike - 07-05-2015, 09:09 PM

RE: Philco 604C Electronic Restoration - by sam - 07-16-2015, 03:17 AM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 07-16-2015, 06:47 AM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 07-16-2015, 09:08 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 07-19-2015, 06:54 PM

RE: Philco 604C Electronic Restoration - by sam - 07-19-2015, 07:14 PM

RE: Philco 604C Electronic Restoration - by GarySP - 07-19-2015, 08:34 PM

RE: Philco 604C Electronic Restoration - by GarySP - 07-30-2015, 07:11 AM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 07-30-2015, 09:52 AM

RE: Philco 604C Electronic Restoration - by PhilcoPhan1936 - 01-05-2016, 03:41 AM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 10-25-2020, 06:49 PM

RE: Philco 604C Electronic Restoration - by morzh - 10-25-2020, 07:12 PM

RE: Philco 604C Electronic Restoration - by Ron Ramirez - 10-27-2020, 03:10 PM

RE: Philco 604C Electronic Restoration - by PhilcoPhan1936 - 10-27-2020, 07:45 PM

RE: Philco 604C Electronic Restoration - by Eliot Ness - 10-28-2020, 09:58 AM

RE: Philco 604C Electronic Restoration - by Simon Wa3uay - 11-04-2020, 08:09 PM

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