"Brenda Ann" ) writes:
"RadioGuy" wrote in message
...
With the proper hookup you will get a tone---and the tone will be
adjustable
in frequency depending upon operator preference.

Ah, but then it wouldn't be a totally passive receiver. The OP is looking to
use only the passive receiver, not any add-ons or external sources.


Maybe he's talking about a bit of DC bias, and kicking the diode into
oscillation. There were reports of that sort of thing happening when
"crystal radios" were still pretty important.

Likely finicky, if one can get a specific diode to oscillate, and no
it's no longer passive, but it is simpler than the obvious solution of
adding an extra beat oscillator.

Michael