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Western Electric transmitting relay

Western Electric transmitting relay

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Description
Telegraph relays amplify an electrical signal in a telegraph line. Telegraph messages travel as a series of electrical pulses through a wire from a transmitter to a receiver. The pulses fade in strength as they travel through the wire, limiting the distance a message can be sent. Relays remedy that problem by detecting a weak signal and automatically re-transmitting that signal down the line using a local power source.
Location
Currently not on view
Object Name
transmitting relay
relay
telegraph relay
Maker
Western Union Corporation
maker
Western Electric Co.
Measurements
overall: 3 3/4 in x 7 1/4 in x 3 1/2 in; 9.525 cm x 18.415 cm x 8.89 cm
ID Number
EM.331784
patent number
U29840
collector/donor number
100-852
accession number
294351
catalog number
331784
Credit Line
from Western Union Corporation
See more items in
Work and Industry: Electricity
Communications
Data Source
National Museum of American History
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