If you meant 150 kHz (not 500 Hz) then the Sony ICF-2010 is pretty close to
what you want... it runs on 4.5 volts and the solar power supply becomes a
separate design problem.

If you actually meant 500 Hz, well, then, I'm not sure that's a *radio*...


wrote in message
...
This receiver probably does not exist but here's what I am looking
for.

coverage from 500hz to 30mz with dual or triple conversion and
with a sensitively of 10mv capable of receiving AM, CW and SSB
and the capability of using batteries or a solar powered array.