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26 April 19

The carbon pile did have more draw backs then just the RF burns, its audio was minimal and required a strong voice and obviously to be very close to the microphone…. Wikipedia …. History of the Microphone

Author Bill_LPosted on 26 April, 201926 April, 2019Categories 2019 SPARC TriviaTags rest of the story, sparc, sparc trivia, the rest of the story

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