Wireless Telegraph Key

Description (Brief)
Telegraph keys are electrical on-off switches used to send messages in Morse code and can spark when the circuit opens. This wireless telegraph key features a large disc on the knob to protect against the accidental shock. Until recently, “wireless” meant radio and early wireless equipment often used high voltages.
Location
Currently not on view
Object Name
sending key
telegraph key
maker
L. S. Brach Manufacturing Co.
Physical Description
plastic (overall material)
metal (overall material)
Measurements
overall: 3 in x 6 in x 1 3/4 in; 7.62 cm x 15.24 cm x 4.445 cm
ID Number
EM*314136
catalog number
314136
accession number
195337
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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