Vibroplex Telegraph Key
name: label: maker
content: Vibroplex Company, Inc.
notes: label: Description (Brief)
content: 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.
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 Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.331623
label: accession number
content: 294351
label: collector/donor number
content: 72-12
label: catalog number
content: 331623
objectType: label: Object Name
content: telegraph key
label: Object Name
content: sending key
label: Object Name
content: wireless key
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: cloth (overall material)
label: Measurements
content: overall: 3 1/4 in x 3 3/4 in x 8 in; 8.255 cm x 9.525 cm x 20.32 cm