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Mechanical television

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Televisor 3 - Mechanical Television

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Televisor 4 - mechanical television

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A Fully 3D Printed Tv uses Spinning Disks

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1929 Western Visionette Mechanical Television

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Home made Mechanical television

Mechanical television or mechanical scan television is a television system that relies on a mechanical scanning device, such as a rotating disk with holes in it or a rotating mirror, to scan the scene and generate the video signal, and a similar mechanical device at the receiver to display the picture. This contrasts with modern television technology, which uses electronic scanning methods, for example electron beams in cathode ray tube (CRT) televisions, and liquid-crystal displays (LCD), to create and display the picture.
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