Letter Re: Crystal Radio Sets for TEOTWAWKI
Hi Jim, Thinking about the need to catch local/regional info during a crisis and thought of the old time crystal radio sets to pick up AM radio. Many years ago kids used to build them at home or in Boy Scouts with locally available parts. Crystal radio sets are small, easy to build, easy to use, easy to repair, [JWR Adds: and just about EMP proof, if using a chunk of Galena (or piece of graphite pencil) as the detector, versus a modern germanium diode,] and require no power to operate them! While it seems that there are a lot …