12 Game-Changing Inventions You Didn’t Know Were Created By Black Innovators - Page 9

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9. Electret Microphone

Source: Instagram

Dr. James West was an American inventor and professor responsible for creating the electret transducer or microphone in 1962. He created an inexpensive, highly sensitive, compact microphone that is now used in anything from the microphones on your phone to tape recorders, camcorders, baby monitors and so much more.

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