Western Electric type 2A radio power supply
date: label: date made
content: c 1923
label: date made
content: ca 1923
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: Marked: "Licensed for Use Only As a Part of the Western Electric Loud Speaking Telephone Outfit. Cycles 60 volts: Pri. 110 Sec. 5.4 at 3 Amp. Rec. Volts D.C. 120 at 23 Mil. Amp. Made in U.S.A." Unit is a power supply for the Western Electric 7-A Audio-Amplifier. It consists of a transformer, filter, connecting cords, switches, and two (unopened) No. 217-two element vacuum tubes. The transformer contains windings which reduce the line voltage to 6 volts for filament applications, and windings which produce 120 volts rectified and supplied to vacuum tubes in the 7-A amplifier. New unit in original box. Reference: Western Electric Technical Bulletin T-688-March 1923.
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.321284
label: catalog number
content: 321284
label: accession number
content: 241556
objectType: label: Object Name
content: Antenna, Light Socket
label: Object Name
content: power supply
label: Other Terms
content: Antenna, Light Socket; Components; Radio and Television; Radio and Television
physicalDescription: label: Measurements
content: overall: 5 1/2 in x 10 in x 6 in; 13.97 cm x 25.4 cm x 15.24 cm