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Wente capacitor microphone, 1917
Diagram of an early Western Electric capacitor microphone developed by Wente in 1917.
Wente capacitor microphone, 1917
Diagram of an early Western Electric capacitor microphone developed by Wente in 1917.
Western Electric 7A
RCA 44A
RCA MI6226
RCA Type 1
Ellis Electrical Laboratory 30N
General Electric, model number unknown
Western Electric 600A
Universal BB
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