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Soviet telegraph driving fork

Soviet telegraph driving fork

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Description (Brief)
Soviet-made driving fork for use in multiplex telegraphy. Captured by the U.S. Army on 4 November 1950 during an action in North Korea. Driving forks generate a tone that can be used to send a signal over a telegraph line. Only a receiver tuned to the same frequency will respond to the transmitter. That allows several units to transmit on the same line at the same time, a process telegraphers call multiplexing. After analyzing the unit, the Army sent it to the Smithsonian.
Location
Currently not on view
Object Name
Driving Fork
multiplexing device
telegraph driving fork
date made
1947
Maker
Western Union Corporation
Measurements
overall: 5 1/2 in x 15 1/2 in x 4 1/2 in; 13.97 cm x 39.37 cm x 11.43 cm
ID Number
EM.331777
accession number
294351
collector/donor number
43-09
accession number
294351
catalog number
331777
Credit Line
from Western Union Corporation
subject
Communication, telegraph
See more items in
Work and Industry: Electricity
Data Source
National Museum of American History
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