General Electric / Royal Air Force type 10 aircraft radio receiver
date: label: date made
content: 1919
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: Marked: "Tuner Air / R.A.F. Type 10 / No. A/621 / General Electric Co., U.S.A. / N.P. 18119", and "Control / NP 17987-E / 17987-F". World War I era military unit, a two section receiver consisting of a tuner and vacuum tube detector and amplifier with associated control box for varying voltages. The circuitry appears to be two RF stages, a detector, and two audio stages. Two "intervalve" audio output transformers are utilized. Tube complement consists of 5 "Q" type valves (missing). Two potentiometers and an aerial coupling unit (2 coils) are included. Specimen is designed for receiving wireless telephone signals. The control box contains what appears to be two variable resistance with knob controls -- one scale reads 0 - 180, the other 0 - 300. A connecting cord plugs into tuner unit. Addition cords for plug-in 6 and 50 volt connections are included in wooden case. Reference: Specification sheet inside main tuner box. Wiring schematic on lid inside main tuner box.
label: Location
content: Currently not on view
place: label: place made
content: United States
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.321667
label: accession number
content: 241556
label: catalog number
content: 321667
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: container: 7 in x 20 1/4 in x 16 1/2 in; 17.78 cm x 51.435 cm x 41.91 cm