Vibroplex Telegraph Key
date: label: date made
content: ca 1919
name: label: maker
content: Vibroplex Company, Inc.
notes: label: Description (Brief)
content: 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. Operators often purchased their own keys. This unit belonged to Western Union operator F. L. Currie.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
label: See more items in
content: Telegraph Keys
label: See more items in
content: Communications
creditLine: label: Credit Line
content: from Western Union Telegraph Co., Engineering Dept. Labs
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.311058
label: catalog number
content: 311058
label: accession number
content: 136987
objectType: label: Object Name
content: telegraph key
label: Object Name
content: sending key
label: Object Name
content: semi-automatic key
label: Other Terms
content: telegraph key; telegraph
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: slate (overall material)
label: Physical Description
content: cloth (overall material)
label: Physical Description
content: rubber (overall material)
label: Measurements
content: overall: 3 1/2 in x 3 1/2 in x 7 3/4 in; 8.89 cm x 8.89 cm x 19.685 cm