[Milsurplus] Low B+ receiver operation

[Bill Pileggi]

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

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