Holtzer-Cabot loud speaker horn driver in box
date: label: date made
content: 1924
name: label: maker
content: Holtzer-Cabot Electric Co.
notes: label: Description (Brief)
content: Marked: Unit: "Holtzer-Cabot / Boston / Universal / Made in U.S.A. / Connect terminal with +mark to the terminal on the amplifier which goes to the +side of the "C" battery." Box: "Tower Scientific loud speaker phonograph attachment for Victor, Columbia, Pathe, Vocalion, Standard, Sonora, Silvertone, Edison and Jewel Tone Arm. " Binding posts on the base. This may not be the original box.
label: Description (Brief)
content: This unit is an electroacoustical coupler, designed to connect the audio output stage of a radio receiver to a standard acoustical phonograph. They were advertised as cures for the 'unsightly' loudspeaker which generally had a horn shape at the time. Basically a magnetic headphone, coupling was achieved by inserting the pickup needle into a reed on the driver.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Boston
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321663
label: catalog number
content: 321663
label: accession number
content: 241556
objectType: label: Object Name
content: Loudspeaker Driver
label: Other Terms
content: Loudspeaker Driver; Audio Devices
physicalDescription: label: Measurements
content: overall: 3 1/4 in x 2 5/8 in; 8.255 cm x 6.6675 cm