Gallery›Wellcome Collection›Acoustics: an Edison phonograph with a carbon microphone. Coloured wood engraving after J.T. Balcomb.
Acoustics: an Edison phonograph with a carbon microphone. Coloured wood engraving after J.T. Balcomb.
Wellcome Collection

Acoustics: an Edison phonograph with a carbon microphone. Coloured wood engraving after J.T. Balcomb.

J. T. Balcomb · 1878

CC0 — Public Domain
Wellcome Collection

Lettering: The phonograph and microphone. Apparatus used in the discovery of the microphone. (See page 114.)

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