Ballantine model T-20-B throat microphone

Ballantine model T-20-B throat microphone

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Description (Brief)
Throat microphone designed and developed for aviators 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. 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.
Currently not on view
Object Name
Other Terms
Microphone; Audio Devices
date made
ca 1939
associated date
ca 1939
Ballantine Laboratories, Inc.
place made
United States: New Jersey
overall: 11 1/2 in x 7 in x 1 in; 29.21 cm x 17.78 cm x 2.54 cm
ID Number
catalog number
accession number
Credit Line
from Ballantine Laboratories, Inc. thru A. W. Parkes
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Work and Industry: Electricity
Data Source
National Museum of American History
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