Telegraph Register
notes: label: Description (Brief)
content: This telegraph register is incomplete with only the frame, electromagnets and tape drive mechanism remaining. Donated by Princeton, it may have been used in laboratory experiments. Telegraph registers are electrically-activated printers that receive Morse code messages. The message travels as a series of electrical pulses through a wire. The pulses energize the register’s electromagnets which move a lever-arm holding a pen or stylus. A clockwork mechanism pulls a strip of paper across the pen or stylus, recording the message. Short pulses draw or emboss a dot, slightly longer pulses a dash. The sequence of dots and dashes represent letters and numbers.
label: Location
content: Currently not on view
topic: label: web subject
content: Communication, telegraph
setName: label: See more items in
content: Work and Industry: Electricity
label: See more items in
content: Telegraph Registers
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content: Communications
creditLine: label: Credit Line
content: from Princeton University, Dept. of Electrical Engineering, thru Dean Howard Menand
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.318571
label: catalog number
content: 318571
label: accession number
content: 232729
objectType: label: Object Name
content: telegraph receiver
label: Object Name
content: telegraph register
physicalDescription: label: Physical Description
content: brass (overall material)
label: Physical Description
content: copper (overall material)
label: Measurements
content: overall: 5 3/4 in x 5 1/2 in x 10 1/4 in; 14.605 cm x 13.97 cm x 26.035 cm