National Airphone model GT-1 "Monodyne" radio receiver
date: label: date made
content: ca 1924
notes: label: Description (Brief)
content: Marked: "Tested 02503... / National Airphone Corp'n. / 16 Hudson St. / N.Y. City". A small radio receiver employing a triode detector in what appears to be a non-regenerative circuit. Uses a single WD-12 tube (missing). Two receiving coils are provided and are inserted in a metal clamp. A green-colored coil covers the 150 to 400 meters waveband, while a red coil covers 400-600 meters. Station selector control has 0-100 calibration. One binding post screw is missing. Appears to be a model GT-1 "Monodyne" unit, original price: $10.00. Reference: Langley Set Index, page 48. Also, https://www.radiomuseum.org/r/national02_monodyne_gt1.html.
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.321465
label: model number
content: GT-1
label: catalog number
content: 321465
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 3 in x 6 1/2 in x 4 3/8 in; 7.62 cm x 16.51 cm x 11.1125 cm