|[AMRadio] Ranger solid state|
k4kyv at charter.net
Fri Feb 27 12:39:19 EST 2009
> From: "Robert Perdue" <kc0hfl at cox.net>
> I am looking for the procedure to convert the 5R4 to solid state. Is it
> cathodes to pin 4,6 and tie the anode to pin 8 does anything need to be
> done with the filament wiring?
The ANODES go to pins 4 and 5. Tie the cathodes together and run them to
either pin 2 or 8. Depending on how the transmitter is wired, if you remove
the 5 volt filament transformer, you may need to short pins 2 and 8
In my Gates BC1-T, I removed the wiring from the 5R4 socket entirely, and
mounted the diodes on a separate terminal strip. That freed up the octal
socket for a 6AS7G tube that provides protective bias to the 833A stage for
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