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Description
Lee de Forest holds a wireless radio receiver at Mineola Field, Long Island, New York, 1916. On August 4, 1910, de Forest and his pilot, Elmo Pickerell, had first made headlines when they successfully demonstrated radio transmission from Pickerell's Wright Model B and a portable ground station. After further developments, in 1916 de Forest demonstrated vacuum tube radiotelephone (voice) equipment, with a trailing antenna, in an airplane at Mitchell Field. Soon after, the equipment was transferred to the U.S. Army Signal Corps. On back of photo: "First radio telephone from airplane" de Forest holding large radio outside of a plane hanger. Long Island, Fall of 1916.
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