02-26-2023, 10:02 PM
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.
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