Telegraph Register

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Description (Brief)
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.
Currently not on view
Physical Description
brass (overall material)
copper (overall material)
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
ID Number
catalog number
accession number
Credit Line
from Princeton University, Dept. of Electrical Engineering, thru Dean Howard Menand
Communication, telegraph
See more items in
Work and Industry: Electricity
Telegraph Registers
Data Source
National Museum of American History


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