Most crystal radio receivers have a decidedly “field expedient” look to them. Fashioned as they often are from a few turns of wire around an oatmeal container and a safety pin scratching the surface ...

A staple of starting off in electronics ion years past was the crystal set radio, an extremely simple AM radio receiver with little more than a tuned circuit and a point contact diode as its ...

It was a crystal radio set that pulled Kurt Stefans in. He was in 5th grade and, like many youths in the 1950s, '60s and '70s, he found himself interested in radio communications. The crystal radio ...