Stromberg-Carlson radio microphone
date: label: date made
content: ca 1916
label: date made
content: c 1916
name: label: maker
content: Stromberg-Carlson
notes: label: Description
content: Carbon granule microphone consisting of telephone transmitter with handle added, 1916-1920. Type used by Dr. Lee de Forest in experimental broadcasts in New York area, about 1916. Failed to reproduce high and low frequencies of music with great fidelity or strength, mechanical action of carbon produced noise. Marked: Stromberg-Carlson Tel. Mfg. Co.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from National Broadcasting Company, Inc.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.311443
label: catalog number
content: 311443
label: accession number
content: 148157
objectType: label: Object Name
content: microphone
physicalDescription: label: Measurements
content: overall: 9 1/2 in x 4 in x 2 1/2 in; 24.13 cm x 10.16 cm x 6.35 cm