Posts: 1,032
Threads: 9
Joined: Jul 2020
City: Greenlawn
State, Province, Country: NY
This circuit looks more and more interesting. Lots of resistance in the cathode circuit of the Det / 1st AF tube (Diode biased?)
L11 appears to be an RF choke in series with the connection between the driver transformer primary and the cathode of the Det /1st AF. Wonder if it is really necessary and if you can just "try in" a 3K resistor. If it oscillates or sounds too harsh, then you have to worry about making the choke.
"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
Best Regards,
MrFixr55
Messages In This Thread
RE: RCA R-73 RESTORATION - by MrFixr55 - 02-26-2023, 11:02 PM
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