Amrad "Duo" radio receiver
date: label: date made
content: ca 1922
name: label: maker
content: American Radio & Research Corporation
notes: label: Description (Brief)
content: Marked: "AMRAD / Duo-Receiver / Model No. 3670 Ser. No. 2328 / American Radio and Research Corp. / Medford Hillside, Mass." Unit is a crystal detector and single stage audio amplifier. A basket weave variometer is used as a station tuner; a two position filament rheostat switch is on the front panel; a stabilizer control is also utilized. Grid leak resistance is missing from unit. Frame is of wooden construction.
label: Location
content: Currently not on view
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.321087
label: catalog number
content: 321087
label: accession number
content: 241556
label: model number
content: 3670
label: serial number
content: 2328
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 10 3/4 in x 7 1/2 in x 12 7/8 in; 27.305 cm x 19.05 cm x 32.7025 cm