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type 1-F wheatstone combination relay

type 1-F wheatstone combination relay

Usage conditions apply
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.
Currently not on view
Object Name
combination Wheatstone relay
combination relay
telegraph relay
date made
ca 1918
Western Union Corporation
overall: 5 1/4 in x 5 1/4 in x 5 in; 13.335 cm x 13.335 cm x 12.7 cm
ID Number
model number
accession number
catalog number
Credit Line
from Western Union Corporation
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Work and Industry: Electricity
Data Source
National Museum of American History
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