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Caption: "Wireless Room, Cornell University March 1912. Leonard F. Fuller + a Filipino student whose name is not available. Picture shows the spark transmitter + the operating table with the receivers which used crystal detectors of several different types - silicon, galena, ferrite, carborundum + c. At extreme left, one sees part of a Poulsen arc I build in the University machine shops. Leonard F. Fuller Jan. 26 1967"
Wireless communication systems (LCSH) Radio (LCSH) Poulsen Arc Transmitter Morgan, Jane Fuller, Leonard Franklin