Philco model #20

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Philco model #20

RodB
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Posts: 1,124
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Joined: Feb 2015
City: Roseville, MN

#33

Yesterday, 09:46 AM

I seem to recall in some TRF sets there being a Local/Distance toggle switch that removes the B+ from the first 24 rf tube screen grid, making it a triode, resulting in less gain. There's no automatic control in a TRF. I guess you could take up farming. :-) But you would need 9 kids like my great grandfather. That's a lot to take on just to get lower volume on the radio.

(This post was last modified: Yesterday, 12:55 PM by RodB.)

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Philco model #20 - by onlyrick - 03-17-2025, 08:44 PM

RE: Philco model #20 - by morzh - 03-17-2025, 09:15 PM

RE: Philco model #20 - by morzh - 03-17-2025, 09:17 PM

RE: Philco model #20 - by MrFixr55 - 03-17-2025, 09:48 PM

RE: Philco model #20 - by onlyrick - 03-17-2025, 10:46 PM

RE: Philco model #20 - by onlyrick - 03-18-2025, 10:22 PM

RE: Philco model #20 - by morzh - 03-18-2025, 11:01 PM

RE: Philco model #20 - by morzh - 03-18-2025, 11:05 PM

RE: Philco model #20 - by Steve Davis - 03-19-2025, 12:17 AM

RE: Philco model #20 - by morzh - 03-19-2025, 12:26 PM

RE: Philco model #20 - by onlyrick - 03-19-2025, 10:27 PM

RE: Philco model #20 - by onlyrick - 03-21-2025, 10:00 AM

RE: Philco model #20 - by onlyrick - 03-23-2025, 05:01 PM

RE: Philco model #20 - by MrFixr55 - 03-23-2025, 08:35 PM

RE: Philco model #20 - by onlyrick - 03-23-2025, 09:53 PM

RE: Philco model #20 - by Steve Davis - 03-24-2025, 02:02 PM

RE: Philco model #20 - by morzh - 03-24-2025, 02:41 PM

RE: Philco model #20 - by onlyrick - 03-24-2025, 03:34 PM

RE: Philco model #20 - by morzh - 03-24-2025, 06:19 PM

RE: Philco model #20 - by onlyrick - 03-26-2025, 09:37 PM

RE: Philco model #20 - by morzh - 03-27-2025, 12:40 AM

RE: Philco model #20 - by onlyrick - 03-27-2025, 11:15 AM

RE: Philco model #20 - by radiorich - 03-27-2025, 12:15 PM

RE: Philco model #20 - by morzh - 03-27-2025, 01:41 PM

RE: Philco model #20 - by onlyrick - 03-27-2025, 03:55 PM

RE: Philco model #20 - by morzh - 03-27-2025, 06:03 PM

RE: Philco model #20 - by onlyrick - 03-27-2025, 09:23 PM

RE: Philco model #20 - by morzh - 03-27-2025, 11:17 PM

RE: Philco model #20 - by onlyrick - 04-04-2025, 09:34 PM

RE: Philco model #20 - by MrFixr55 - 04-04-2025, 10:30 PM

RE: Philco model #20 - by MrFixr55 - Yesterday, 08:22 AM

RE: Philco model #20 - by RodB - Yesterday, 09:46 AM

RE: Philco model #20 - by onlyrick - Yesterday, 02:24 PM

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