Crystal Set - by VE6AB
My crystal radio receiver, also called a crystal set or cat's whisker receiver, is a very simple radio receiver, popular in the early days of radio. It needs no battery or power source and runs on the power received from radio waves by a long wire antenna. It gets its name from its most important component, the crystal detector as seen on the top of my crystal set. The detector cup has a piece of galena crystal in it.
My version of a early crystal radio was built in my shop, with the coil form turned in the lathe, and then had the thermaleze magnet wire wound in the lathe as well. All the brass parts including the detector up top were machined in my shop also. The slider on the side is used for tuning stations, and then may be locked. The top and bottom are made from walnut. the feet are drawer-pulls from Home-Depot. All wiring is hidden inside of the coil-form. The head-phones are vintage 1924 Brandies that I found on the Internet. The set is a very good performer, and is a joy to use.