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 ...

Back before cell phones … before video games … before television … even before electric radios, there were crystal radio receivers. In the early 1920s and 1930s, magazines offered instructions on how ...

Gecophone crystal detector radio set no. 1, complete with instruction handbook, made by the General Electric Company Limited, British, 1923. Polished mahogany case with a lift up lid and ebonite ...

Perhaps the simplest radio one can build is the crystal radio. Using a diode as a detector, the design generally uses less than 10 components and no battery, getting its power to run from the radio ...

The film explains the concept of electromagnetic waves, particularly focusing on their applications in radar, radio, and television. It describes how a crystal set functions as a simple radio receiver ...

Lawo says that with intuitive operation, logical workflow and refined functionality, its next-generation crystal console offers operational suitability for radio applications and TV production and ...

In this letter, the author responds to the story “Double-Hop Dreams and the Mystery of Long-Distance FM.” Radio World welcomes letters to the editor on this or any story. Email [email protected].