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Philco 90 1-47 Triode
#31

> Were you happy with the cap specs you chose for the tone switch? Or where those of known values?

Known values; you can see them here:
https://philcoradio.com/library/images/schem/90b.jpg

> insofar as the speaker, is the polarity of the voice coil and field coil critical? Do they need to be in a specific phase?

I'd say likely not; however, I will defer to the other guys (morzh, RadioRoslyn, et al).

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 04:02 PM
RE: Philco 90 1-47 Triode - by morzh - 06-25-2023, 06:10 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 06:18 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 07:28 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-25-2023, 07:43 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-25-2023, 08:06 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 08:07 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 08:11 PM
RE: Philco 90 1-47 Triode - by morzh - 06-25-2023, 08:31 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 08:33 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-25-2023, 08:45 PM
RE: Philco 90 1-47 Triode - by DaleHCook - 06-25-2023, 08:50 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-25-2023, 08:59 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 09:04 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-25-2023, 09:12 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 09:18 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-25-2023, 09:22 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-25-2023, 09:25 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-26-2023, 07:31 AM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-26-2023, 10:32 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-26-2023, 02:15 PM
RE: Philco 90 1-47 Triode - by morzh - 06-26-2023, 05:46 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-26-2023, 06:23 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-26-2023, 07:28 PM
RE: Philco 90 1-47 Triode - by GarySP - 06-26-2023, 07:59 PM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-26-2023, 08:16 PM
RE: Philco 90 1-47 Triode - by RodB - 06-26-2023, 10:08 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-27-2023, 06:26 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 07:35 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 09:18 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 09:51 AM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 10:02 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 10:05 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 10:06 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 10:30 AM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 10:34 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 10:42 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 10:44 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 10:54 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 11:03 AM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 11:10 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 12:07 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 12:11 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 12:22 PM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 12:23 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 12:27 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 12:34 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 12:34 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 12:37 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-27-2023, 12:39 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 12:53 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-27-2023, 01:07 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 01:13 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 06-27-2023, 01:42 PM
RE: Philco 90 1-47 Triode - by morzh - 06-27-2023, 01:43 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-27-2023, 07:10 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-28-2023, 06:07 AM
RE: Philco 90 1-47 Triode - by morzh - 06-28-2023, 09:33 AM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-28-2023, 09:44 AM
RE: Philco 90 1-47 Triode - by morzh - 06-28-2023, 11:55 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 06-28-2023, 04:12 PM
RE: Philco 90 1-47 Triode - by Ron Ramirez - 06-29-2023, 07:24 AM
RE: Philco 90 1-47 Triode - by MrFixr55 - 06-29-2023, 05:02 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 12-21-2023, 10:40 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 12-21-2023, 11:34 PM
RE: Philco 90 1-47 Triode - by RodB - 12-22-2023, 09:50 AM
RE: Philco 90 1-47 Triode - by GarySP - 12-22-2023, 10:04 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 12-22-2023, 10:08 AM
RE: Philco 90 1-47 Triode - by Mike_RF - 12-22-2023, 10:10 AM
RE: Philco 90 1-47 Triode - by morzh - 12-22-2023, 10:28 AM
RE: Philco 90 1-47 Triode - by Radioroslyn - 12-22-2023, 12:31 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 12-22-2023, 12:55 PM
RE: Philco 90 1-47 Triode - by RodB - 12-22-2023, 06:20 PM
RE: Philco 90 1-47 Triode - by Mike_RF - 12-24-2023, 05:35 PM
RE: Philco 90 1-47 Triode - by RodB - 12-24-2023, 08:56 PM
RE: Philco 90 1-47 Triode - by Radioroslyn - 12-24-2023, 10:32 PM



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