Hi, (hope I'm not breaking any rules by asking about this) I found this circuit below:
Here are the parts:
C1-Tuning Capacitor
C2-0.1uf Disc Capacitor
R1-10 Meg 1/4 W Resistor
D1-1N34 Germanium Diode
U1-741 Op Amp
L1-"Loopstick" Antenna
I was just wondering, should this circuit work as a crystal radio?
Ok, how would I find out what load I should be applying to D1?
And for the mid supply bias at the non-inverting input, would I need a resistor that halves the voltage?