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Definisi 'telegraphoscope'
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English to English noun
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An instrument for telegraphically transmitting a picture and reproducing its image as a positive or negative. The transmitter includes a camera obscura and a row of minute selenium cells. The receiver includes an oscillograph, ralay, equilibrator, and an induction coil the sparks from which perforate a paper with tiny holes that form the image. |  | source: webster1913
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