A crystal radio uses no batteries. It works only by collecting power from the radio waves around us. The first radios ever used were of this type. In our opinion, our crystal radio is one of the best on the market because we made it as simple and as primitive as we could. No secrets here: no hidden wires, no pre-assembled parts. This kit provides the builder with a real sense of accomplishment. All you need to complete the project is a toilet paper or paper towel tube insert. Takes about an hour to assemble. The "gee whiz how can something this simple really work!" surprise is real. |