[Milsurplus] Low B+ receiver operation

[Hue Miller]

----- Original Message -----
From: "Bill Pileggi" <wpileggi at juno.com>

> I've been running my ARC-5/Command Set receivers from 50-75 vdc for some years now. Much easier to
power up or construct a power supply, as current drain is only 10-20 ma. (You can steal a little
power from the filament supply.) Audio Output is still quite "loud". Sensitivity about 1 uV/AM or
about 0.3 uV/CW. Still stable as a rock - when properly tuned up. I don't think it affects IF
selectivity - they're (HF RX) still as broad as a barn door....
>
> Bill KA3AIS

So you could use a voltage doubler off the filament line - then maybe either stiff capacitors or
some basic voltage regulator, so the typical voltage-multiplier poor regulation doesn't affect
the receiver's stability?
-Hue Miller