Thomas Edison (1847-1931) Gallery

Edisons Lab

circa 1935: A view of the upstairs of Thomas Edison's Menlo Park lab after its relocation to the Henry Ford Museum in Greenfield Village, with gas and electric light bulbs in the foreground, Dearborn, Michigan. The arrow on the vacuum pump (center) marks the site of Edison's recreation of the lighting of the incandescent bulb on October 21, 1929. (Photo by Hulton Archive/Getty Images)

Edisons Phonograph from 1879, wood engravings, published in 1880

The Phonograph (Tin Foil Phonograph) by Thomas Alva Edison (American inventor, 1847 - 1931) in 1879 (improved design of the prototype from 1877). The transmission (g, left figure) with the chain hoist, provide for a constant rotational speed during the recording respectively playback of the tones. The right illustration shows the cross section of the cylinder with the speaking tube. Wood engravings, published in 1880