The Nipkov disk is a prototype..?

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telegraph
turntable
A Nipkow disk is a mechanical, rotating, geometrically operating image scanning device, patented in 1885 by Paul Gottlieb Nipkow. This scanning disk was a fundamental component in mechanical television through the 1920s and 1930s.
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Very interesting!
reach: rather globalelectronicsinventorssciencetechnology

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