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William Dubilier
William Dubilier (July 25, 1888 - July 25, 1969) was an American inventor in the field of radio and electronics. He demonstrated radio communication at Seattle's Alaska-Yukon-Pacific Exposition on June 21, 1909; ten years before the first commercial station operated.〔
〕 A graduate of Cooper Union, he was the first to use sheets of naturally occurring mica as the dielectric in a capacitor. Mica capacitors were widely used in early radio oscillator and tuning circuits because the temperature coefficient of expansion of mica was low, resulting in very stable capacitance - mica capacitors are still used where exceptional temperature stability is needed.
He founded the Dubilier Condenser Company in New York in 1920.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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