experimental steel needle and gas carbon microphone, 1878-1890

PART OF:: Experimental microphones using steel needles and gas carbon, 1878-1890

Made:: 1878-1890 in England

maker:: David Edward Hughes

One experimental microphone consisting of steel needles suspended in contact with blocks of gas carbon, probably made by David Edward Hughes, England, 1878-1890

Details

Category:: Telecommunications

Object Number:: 1922-148/2

type:: microphone

credit:: Executors of the late Anna C. Hughes

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