Thomas Alva Edison secured a U.S. patent on February 19, 1878 in Menlo Park, NJ, USA for the phonograph or speaking machine design which developed from an idea for a telegraph repeater. Mechanic, John Kreusi constructed a cylinder, operated by a hand crank, was wrapped in tin foil, with which two needles fastened to diaphragms made contact. The instrument recorded the first verse of Mary Had a Little Lamb.
February 19, 1878
Thomas Alva Edison
Menlo Park, NJ, USA
- Phonograph – Wikipedia
The phonograph was invented in 1877 by Thomas Edison. While other inventors had produced devices that could record sounds, Edison’s phonograph was the first to be able to reproduce the recorded sound. His phonograph originally recorded sound onto a tinfoil sheet wrapped around a rotating cylinder.
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