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Building A Crystal Radio Out Of Household Items
scitoys.com
Several simple radio receiver projects, including the razor blade "foxhole" radio, that use found materials. Well illustrated with closeup photographs.
Foxhole Radios
members.aol.com
Don Adamson's article on building these simple devices, with illustrations and excerpts from 1940s publications.
R. G. Wells
histru.bournemouth.ac.uk
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. …