This receiver was found in an article in Electronics Now magazine in March 1994. The coils are critical, as shown in the figure. Listening is through headphones.
This circuit has very high input impedance and a differential input. The gain is 1,000 and the...
This circuit with a MOSFET is from an old American documentation. The capacitor should be leak...
This circuit was found in an old American documentation. The transformer is of the type found in...