1935 GE Model A-53 AM/SW Tombstone Radio - Videokarma.org TV - Video

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1935 GE Model A-53 AM/SW Tombstone Radio

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#10

07-20-2021, 04:23 PM

old_coot88 old_coot88 is offline

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Join Date: Sep 2009

Posts: 2,647

Quote:

Originally Posted by DavGoodlin

I had a look at the schematic and the 5000 ohm volume control seems to vary suppressor grid voltage on the 6K7 IF tube.

Looks like it also ties to the cathode and to the 6A8 cathode. So applying varying positive voltage on the cathodes equates to varying neg. voltage on G1s (control grids).

Last edited by old_coot88; 07-20-2021 at 04:26 PM. Reason: Typo.

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