Morse's telegraph transmitter

Morse's telegraph transmitter

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Caption: Morse's telegraph. Historical artwork of the transmitter of a telegraph machine used to send Morse code. The operator tapped out the code on the button at upper left. Morse code represents each letter and number by a series of dots and dashes. By holding down the button for varying lengths of time, a short or long electrical signal was sent down the wire. A receiver at the end of the wire then converted these signals into a print-out of dots and dashes, which could be translated back into the message. Morse sent the first telegraph message in 1844. For an image of the receiver, see image V400/069.

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Keywords: artwork, black-and-white, coding, communication, communications, handset, historical, history of science, illustration, monochrome, morse code, morse's telegraph, technology, telegraphy, transmission, transmitter, transmitters

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