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A foxhole radio is a makeshift radio that was used by soldiers in World War II, named for the earthen shelters and trenches in which soldiers commonly found themselves inhabiting. The foxhole radio differed from the crystal radio. A razor blade and pencil were used as a diode in a foxhole radio while a piece of crystal is used as a diode in a crystal radio.〔Gould Jack, 1958 "How to build a foxhole radio." All about Radio and Television. Random House. Pages 58-72.〕 The foxhole radio is like a crystal set, in that it does not require an external power source. The radio is powered by the radio signal it receives. This makes the foxhole radio ideal for prisoners of war (POW), who commonly made these radios to keep up with current events. ==History== During World War II, Toivo Kujanpaa, stationed at Anzio Beachhead, used a Foxhole radio to receive German propaganda programs. The propaganda programs were directed towards American military from an Axis station in Rome. American G.I.'s in Italy would put several radios together. The G.I.s would listen at night near the front lines to phonograph records played on a radio station in Rome. You could usually hear a radio station on a foxhole radio if you lived twenty five or thirty miles away.〔 In 1942, Lieutenant Colonel R. G. Wells—a prisoner of war in Japan—built a foxhole radio to get news about the international situation. "The whole POW camp craved news", according to Wells. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Foxhole radio」の詳細全文を読む スポンサード リンク
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