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Foxhole Radio: the ubiquitous razor blade radio of WWII
Brian Carusella, author
Foxhole Radio is the story of one of the more remarkable and resourceful pieces of WWII soldier improvisation, a simple crystal radio receiver that used a razor blade for its detector rather than the usual galena crystal. It is not remarkable for its technology – other radios worked better – but because hidden in its unglamorous amalgamation of scrounged parts is the history of army radio, morale, solid state electronics, field fortifications, and even military grooming.