Summary
Device used to transmit signals in an electric telegraph system. It converted a pattern of perforations on a continuous paper tape into pulses of electrical current representing letters and numbers according to a defined code. These pulses could then be transmitted over the telegraph line to the receiving station.
Physical Description
Metal base carrying metal baseplate with vertical metal endplate. Electric motor attached to baseplate. Endplate carries tape-reading mechanism. Attached connecting cable and plug.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from V. Barnes, May 1976
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Maker
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Inscriptions
Vertical endplate inscribed: "TRANSMITTER TYPE A40 SERIAL No. 0074 CABLE & WIRELESS LTD." End of base carries plate inscribed: "MARK III" Motor casing inscribed: "PHONIC MOTOR TYPE N-7 MUIRHEAD & Co. Ltd. No. 194904 100V LOW POWER"
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
410 mm (Length), 185 mm (Width), 170 mm (Height)
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Other Dimensions
770 (Length), 185 (Width), 170 (Height)
Overall Dimensions with Cable Extended
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Keywords
