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 micarta disc on the knob to protect against the danger of accidental shock. Until recently, “wireless” meant radio and early wireless equipment often used high voltages.
Location
Currently not on view
Object Name
telegraph key
associated institution
Bureau of Standards
Physical Description
brass (overall material)
rubber (overall material)
wood (overall material)
metal (overall material)
Measurements
overall: 3 1/2 in x 3 in x 5 1/2 in; 8.89 cm x 7.62 cm x 13.97 cm
ID Number
EM*313506
catalog number
313506
accession number
188571
collector/donor number
R-2230
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 the United States Bureau of Standards, Dept. of Commerce
Additional Media

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Selected comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about the history, rarity, or value of your personal artifacts.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Image CAPTCHA
Enter the characters shown in the image.