Telegraph Key

Description (Brief)
Semi-automatic keys like this small unit 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. In this example, the key is mounted on the side.
Location
Currently not on view
Object Name
key
telegraph key
Physical Description
metal (overall material)
plastic (overall material)
wood (overall material)
cloth (overall material)
Measurements
overall: 2 1/2 in x 5 7/8 in x 3 in; 6.35 cm x 14.9225 cm x 7.62 cm
ID Number
EM*331900
accession number
294351
catalog number
331900
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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