Vibroplex Telegraph Key

Description (Brief)
Telegraph keys are electrical on-off switches used to send messages in Morse code. 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.
Location
Currently not on view
Object Name
telegraph key
sending key
wireless key
maker
Vibroplex Company, Inc.
Physical Description
metal (overall material)
plastic (overall material)
cloth (overall material)
Measurements
overall: 3 1/4 in x 3 3/4 in x 8 in; 8.255 cm x 9.525 cm x 20.32 cm
ID Number
EM*331623
accession number
294351
collector/donor number
72-12
catalog number
331623
See more items in
Work and Industry: Electricity
Communications
Telegraph Keys
Data Source
National Museum of American History, Kenneth E. Behring Center

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