He http://scitoys.com/scitoys/scitoys/r...ade_radio.html

is wrote: "If you don't have a strong station nearby, you can add a battery
in series with the LED (a small 1.5 volt battery works fine). The LED will
light up, and the radio will play much louder than without the battery (if
the LED doesn't light up, try connecting the battery the other way around).
This arrangement is the best detector I have used so far, and is louder than
the 1N34A germanium diode"

Can anybody check the direction of electrons flow?
Of course between the antenna and the ground.
S*