Thomas Alva Edison's first Phonograph, 1878. Creator: Unknown.

Thomas Alva Edison's first Phonograph, 1878.  Creator: Unknown.

1-158-040 - Oxford Science Archive/Heritage Images

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Thomas Alva Edison's first Phonograph, 1878. In this model the cylinder on which the sound was recorded had to be rotated by hand. Instrument in recording mode. A horn was fitted to play back recording. From Theodore Eckardt Physics in Pictures, London, 1882.

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