Electrical Research Products Inc. type TA4151A loudspeaker
date: label: date made
content: ca 1935
name: label: maker
content: Jensen Manufacturing Company
notes: label: Description (Brief)
content: A paper cone speaker with a steel frame mounted on a plywood base. A transformer is set on one side of the speaker and a vacuum tube enclosed in a metal shield is on the other. Maker's label reads: "TA-4151A / Loudspeaking Telephone / Made Expressly for / Electrical Research Products, Inc. / 60 Watts 105-125 Volts / 50 to 60 cycle A.C. / Made in U.S.A." Latest patent on label is US Patent 1941477, "Method of Making Magnetic Sound Reproducers," issued 2 January 1934 to Peter L. Jensen.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Avery Fisher
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.330994
label: catalog number
content: 330994
label: accession number
content: 299397
label: model number
content: TA4151A
objectType: label: Object Name
content: telephone
label: Object Name
content: loud speaker
label: Object Name
content: loudspeaker
label: Other Terms
content: telephone; Audio Devices
physicalDescription: label: Measurements
content: overall: 16 in x 12 1/2 in x 9 in; 40.64 cm x 31.75 cm x 22.86 cm