Thomas Edison invented the carbon microphone in 1877
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amplifier
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The carbon microphone was first created by Thomas Alva Edison in
1877. There was another person who claimed to own the patent for
the microphone in 1877 and that was Emily Berliner.
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Both Emile Berliner and Thomas Edison applied for patents on the
carbon microphone in 1877.
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David Edward Hughes invented the carbon microphone. He lived
from 1831-1900, and lived in London, England.