Several simple radio receiver projects, including the razor blade "foxhole" radio, that use found materials. Well illustrated with closeup photographs.

Don Adamson's article on building these simple devices, with illustrations and excerpts from 1940s publications.

The transcript of an interview with Lieutenant Colonel R. G. Wells, who built a rather elaborate set out of scrounged and improvised items while in a POW camp during World War II. Provided by the Centre for the History of Defence Electronics (CHiDE).

Text-only (with ASCII art) description of how to build one, based on a section written by Lance Borden, WB5REX, in "Electronics Handbook Volume XVII".