Regenerative shortwave radio experiment

Circuit design by Ray Ring

http://circuitsalad.com/2015/01/27/yet-another-variant-of-the-junk-box-regen-this-one-is-really-weird-but-is-an-excellent-performer/

The audio is playing through headphones here, so you can’t hear the excellent signal quality

I didn’t have the OpAmp called for in the circuit, so I built this audio amplifier designed by Dean Segovis: http://hackaweek.com/hacks/?p=131

The antenna was a piece of wire about 30 feet long.

An air variable capacitor was used for tuning.

More to come…