Philco 570

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Philco 570

Ron Ramirez
Silent Key

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

#99

06-12-2019, 08:51 PM

Interesting. Of course high fidelity wasn't even on the radar yet in 1931, so no surprise the IF transformers have limited bandwidth when peaked according to the manufacturer's instructions.

This would change a couple years later.

--
Ron Ramirez
Ferdinand IN

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Philco 570 - by rfeenstra - 04-19-2019, 09:47 PM

RE: Philco 570 - by Greggshere - 04-19-2019, 10:59 PM

RE: Philco 570 - by mikethedruid - 04-19-2019, 11:37 PM

RE: Philco 570 - by Jake Blake - 04-19-2019, 11:47 PM

RE: Philco 570 - by rfeenstra - 04-19-2019, 11:58 PM

RE: Philco 570 - by Nathan Slingerland - 04-20-2019, 12:44 AM

RE: Philco 570 - by rfeenstra - 04-20-2019, 09:32 AM

RE: Philco 570 - by rfeenstra - 04-20-2019, 10:09 AM

RE: Philco 570 - by rfeenstra - 04-20-2019, 11:40 PM

RE: Philco 570 - by KCMike - 04-21-2019, 07:21 AM

RE: Philco 570 - by rfeenstra - 04-21-2019, 09:39 PM

RE: Philco 570 - by rfeenstra - 04-22-2019, 12:26 PM

RE: Philco 570 - by Jake Blake - 04-22-2019, 01:36 PM

RE: Philco 570 - by rfeenstra - 04-22-2019, 05:22 PM

RE: Philco 570 - by Jake Blake - 04-22-2019, 11:03 PM

RE: Philco 570 - by rfeenstra - 04-27-2019, 04:51 PM

RE: Philco 570 - by rfeenstra - 04-27-2019, 05:02 PM

RE: Philco 570 - by Phlogiston - 04-27-2019, 05:59 PM

RE: Philco 570 - by rfeenstra - 04-28-2019, 12:12 AM

RE: Philco 570 - by Greggshere - 04-28-2019, 11:32 AM

RE: Philco 570 - by Jake Blake - 04-28-2019, 11:44 AM

RE: Philco 570 - by rfeenstra - 04-28-2019, 01:28 PM

RE: Philco 570 - by Steve Davis - 04-28-2019, 06:06 PM

RE: Philco 570 - by Jake Blake - 04-28-2019, 08:25 PM

RE: Philco 570 - by rfeenstra - 04-29-2019, 01:37 AM

RE: Philco 570 - by rfeenstra - 04-29-2019, 10:51 AM

RE: Philco 570 - by Radioroslyn - 04-29-2019, 11:00 AM

RE: Philco 570 - by Steve Davis - 04-29-2019, 01:22 PM

RE: Philco 570 - by Phlogiston - 04-29-2019, 01:56 PM

RE: Philco 570 - by Jake Blake - 04-29-2019, 03:11 PM

RE: Philco 570 - by rfeenstra - 04-30-2019, 03:34 PM

RE: Philco 570 - by Jake Blake - 04-30-2019, 03:41 PM

RE: Philco 570 - by morzh - 04-30-2019, 03:48 PM

RE: Philco 570 - by rfeenstra - 05-02-2019, 08:44 PM

RE: Philco 570 - by Greggshere - 05-05-2019, 01:01 AM

RE: Philco 570 - by rfeenstra - 05-05-2019, 11:05 PM

RE: Philco 570 - by Greggshere - 05-09-2019, 10:25 AM

RE: Philco 570 - by Ron Ramirez - 05-09-2019, 09:03 PM

RE: Philco 570 - by rfeenstra - 05-09-2019, 09:13 PM

RE: Philco 570 - by Ron Ramirez - 05-10-2019, 09:37 AM

RE: Philco 570 - by Ed Locker - 05-10-2019, 10:01 AM

RE: Philco 570 - by Ron Ramirez - 05-10-2019, 12:40 PM

RE: Philco 570 - by Ed Locker - 05-10-2019, 07:10 PM

RE: Philco 570 - by rfeenstra - 05-10-2019, 10:13 PM

RE: Philco 570 - by Ed Locker - 05-11-2019, 08:58 AM

RE: Philco 570 - by 462ron - 05-11-2019, 09:01 AM

RE: Philco 570 - by Ed Locker - 05-11-2019, 09:10 AM

RE: Philco 570 - by Ron Ramirez - 05-11-2019, 09:30 AM

RE: Philco 570 - by Ed Locker - 05-11-2019, 09:35 AM

RE: Philco 570 - by 462ron - 05-11-2019, 05:30 PM

RE: Philco 570 - by Phlogiston - 05-11-2019, 05:50 PM

RE: Philco 570 - by Jake Blake - 05-11-2019, 05:58 PM

RE: Philco 570 - by rfeenstra - 05-11-2019, 06:59 PM

RE: Philco 570 - by rfeenstra - 05-11-2019, 07:24 PM

RE: Philco 570 - by Ron Ramirez - 05-11-2019, 09:39 PM

RE: Philco 570 - by rfeenstra - 05-11-2019, 10:32 PM

RE: Philco 570 - by Ed Locker - 05-12-2019, 07:46 PM

RE: Philco 570 - by rfeenstra - 05-13-2019, 08:53 PM

RE: Philco 570 - by Ed Locker - 05-14-2019, 09:25 AM

RE: Philco 570 - by morzh - 05-14-2019, 09:27 AM

RE: Philco 570 - by Ed Locker - 05-14-2019, 09:37 AM

RE: Philco 570 - by Radioroslyn - 05-14-2019, 09:47 AM

RE: Philco 570 - by Ron Ramirez - 05-14-2019, 09:59 AM

RE: Philco 570 - by Ron Ramirez - 05-14-2019, 10:07 AM

RE: Philco 570 - by rfeenstra - 05-14-2019, 03:27 PM

RE: Philco 570 - by rfeenstra - 05-14-2019, 03:56 PM

RE: Philco 570 - by morzh - 05-14-2019, 04:12 PM

RE: Philco 570 - by rfeenstra - 05-14-2019, 08:49 PM

RE: Philco 570 - by morzh - 05-14-2019, 09:37 PM

RE: Philco 570 - by Jake Blake - 05-14-2019, 09:47 PM

RE: Philco 570 - by morzh - 05-15-2019, 08:05 AM

RE: Philco 570 - by Ron Ramirez - 05-15-2019, 08:09 AM

RE: Philco 570 - by rfeenstra - 05-15-2019, 08:22 AM

RE: Philco 570 - by morzh - 05-15-2019, 08:56 AM

RE: Philco 570 - by Ed Locker - 05-15-2019, 09:15 AM

RE: Philco 570 - by morzh - 05-15-2019, 09:52 AM

RE: Philco 570 - by Ed Locker - 05-15-2019, 10:11 AM

RE: Philco 570 - by Ron Ramirez - 05-15-2019, 10:41 AM

RE: Philco 570 - by morzh - 05-15-2019, 10:55 AM

RE: Philco 570 - by rfeenstra - 05-15-2019, 12:56 PM

RE: Philco 570 - by Jake Blake - 05-15-2019, 02:21 PM

RE: Philco 570 - by rfeenstra - 05-15-2019, 02:25 PM

RE: Philco 570 - by Jake Blake - 05-15-2019, 02:28 PM

RE: Philco 570 - by Jake Blake - 05-15-2019, 02:30 PM

RE: Philco 570 - by mikethedruid - 05-15-2019, 06:09 PM

RE: Philco 570 - by Jake Blake - 05-15-2019, 06:25 PM

RE: Philco 570 - by rfeenstra - 05-21-2019, 11:37 PM

RE: Philco 570 - by rfeenstra - 06-11-2019, 10:41 PM

RE: Philco 570 - by Ron Ramirez - 06-12-2019, 08:51 PM

RE: Philco 570 - by rfeenstra - 06-12-2019, 10:14 PM

RE: Rebuilding Sprague Electrolytics - HELP - by Ed Locker - 05-14-2019, 09:05 AM

RE: Ron. cancer post - by Jake Blake - 05-15-2019, 01:10 PM

RE: Ron. cancer post - by Ron Ramirez - 05-15-2019, 01:21 PM

RE: Ron. cancer post - by Jake Blake - 05-15-2019, 01:24 PM

RE: Ron. cancer post - by morzh - 05-15-2019, 01:29 PM

RE: Ron. cancer post - by Ed Locker - 05-15-2019, 02:13 PM

RE: Ron. cancer post - by Jake Blake - 05-15-2019, 02:17 PM

RE: Ron. cancer post - by morzh - 05-15-2019, 02:18 PM

RE: Ron. cancer post - by morzh - 05-15-2019, 02:19 PM

RE: Ron. cancer post - by Ron Ramirez - 05-15-2019, 02:24 PM

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