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Engraving of an Edison cylindrical phonograph.

Engraving of an Edison cylindrical phonograph.

V400/0009

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Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

Edison phonograph. Engraving of an early, cylindrical phonograph from 1877. The phonograph or gramophone was invented in 1877 by Thomas Alva Edison (1847-1931) and it was his favourite invention. It consisted of a foil wrapped on a cylinder (at centre). To make a recording, a free- floating needle was skimmed over the foil as the cylinder was rotated by a handle (at right). The needle was connected to a sound receiver (marked as 'F') The needle vibrated in time to the sound waves and made etchings in the foil. If a sound horn (marked as 'C') was attached, this etching could then be used to play back a distorted but recognisable recording of a person's voice.

Release details

Model release not required. Property release not required.

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