Ballantine model T-20-B throat microphone
date: label: date made
content: ca 1939
label: associated date
content: ca 1939
name: label: maker
content: Ballantine Laboratories, Inc.
notes: label: Description (Brief)
content: Cord length: 10.75". Throat microphone designed and developed for the US Army Air Force by Stuart Ballantine of Ballantine Labs., Inc. Boonton, NJ. Known as a "talking collar" this device permitted aviators to communicate without removing hands from aircraft controls. References: US Patents 2121778 through 2121781, and 2122191, issued 28 June 1938 to Stuart Ballantine.
label: Description (Brief)
content: According to a newspaper account, the Army had been secretly testing Ballentine's throat microphones for "more than three years" at the time the patents issued. Stephen McDonough, "Talking Collar," NY Journal and American, 17 July 1938; Newark, NJ, Sunday Call, 17 July 1938.
label: Location
content: Currently not on view
place: label: place made
content: United States: New Jersey
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Ballantine Laboratories, Inc. thru A. W. Parkes
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.325633
label: catalog number
content: 325633
label: accession number
content: 256739
objectType: label: Object Name
content: Microphone
label: Other Terms
content: Microphone; Audio Devices
physicalDescription: label: Measurements
content: overall: 11 1/2 in x 7 in x 1 in; 29.21 cm x 17.78 cm x 2.54 cm