0460000476
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
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- Copyright
- Irish Photo Archive
- Image Size
- 6000x9243 / 5.2MB
- Contained in galleries
- historical photos 2
