Microphone Amplifier, 1907
date: label: date made
content: 1907
name: label: maker
content: Murdock Radio Co.
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Harry R. Chetham
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.309912
label: catalog number
content: 309912
label: accession number
content: 110988
label: model number
content: 55
objectType: label: Object Name
content: Telephone Experimental Apparatus
label: Object Name
content: microphone
label: Other Terms
content: Telephone Experimental Apparatus; Telephones
physicalDescription: label: Measurements
content: overall: 3 3/8 in x 5 3/8 in x 5 3/8 in; 8.5725 cm x 13.6525 cm x 13.6525 cm