'Oberlin Smith' (1840-1926) was an
engineer who published one of the earliest works dealing with
magnetic recording in
1888. In an article that appeared in the British magazine - ''Electrical World'', he suggested (probably for the first time) the use of permanent magnetic impressions for the recording of sound. Smith had fabricated a cotton or silk thread, into which steel dust or short clippings of fine wire would be suspended. These particles were to be magnetized in accordance with the
alternating current from a
microphone source. Smith also discussed the possibility of using a hard steel wire, but thought it scarcely possible. A working unit was never built. Many of Smith's ideas were used by
Valdemar Poulsen when he developed the first true magnetic recorder.
He also started a small machine shop in
Bridgeton, NJ which became known as the
Ferracute Machine Company in 1877. For the entire existence of the company he was the president and chief engineer.
External links
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Recognition at the NJ Inventor's Hall of Fame.
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Write up in local newspaper.
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Compilation of Oberlin Smith biographical and technical information of his inventions.