Vibroplex Telegraph Key

Description (Brief)
Semi-automatic keys like this "Vibroplex" automatically produced rapid morse code dots by using a weighted pendulum to quickly make and break contact in the electrical circuit. The operator would make the dashes manually but could send much faster than with an ordinary key. This key was used by a Western Union operator and came to the company's museum with its original carrying case.
Location
Currently not on view
Object Name
sending key
telegraph key
date made
ca 1919
maker
Vibroplex Company, Inc.
Physical Description
metal (overall material)
plastic (overall material)
slate (overall material)
cloth (overall material)
rubber (overall material)
Measurements
key: 9 cm x 9 cm x 20 cm; 3 9/16 in x 3 9/16 in x 7 7/8 in
box: 12 cm x 11 cm x 23.5 cm; 4 3/4 in x 4 5/16 in x 9 1/4 in
ID Number
1979.1016.01
accession number
1979.1016
catalog number
1979.1016.01
subject
Communications
Telegraph Keys
See more items in
Work and Industry: Electricity
Telegraph Keys
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
from Homer E. Johnson
Additional Media

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