The classic crystal radio was an oatmeal box with some wire and a few parts. [Michael Simpson] has something very different. He found an assembled Philmore “selective” radio kit. The simple kit had a ...

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 ...

Many years ago when I was about 10 years old I received the gift of a crystal radio. I think it had about three parts. What was the crystal and how did it work? A crystal radio? Did you hook the ...