Westinghouse type TF radio transmitter
date: label: date made
content: c. 1921
label: date made
content: ca 1921
name: label: maker
content: Westinghouse Electric & Manufacturing Co.
notes: label: Description (Brief)
content: Marked (plate reads): Transmitter Type TF / Style 307454 / Serial No. 10149 / Output: 10 Watts Telephone / 20 Watts C.W. / Patented: 10-6-14 / 7-27-20. Westinghouse Electric & Manufacturing Company / East Springfield Works / Springfield, Mass., U.S.A. / 6075 7-6-21. (Panel Marking): Licensed for amateur and experimental use only. This specimen is a radio telegraph and telephone transmitter designed for general amateur use and employing from 5 watt UV-202 vacuum tubes. When used for radiotelegraphy all four tubes are operated in parallel as oscillators, giving the set a nominal output rating of 20 watts. When used for radiotelephony two tubes are operated as modulators while the other two operate as oscillators giving the transmitter a 10 watt rating. Allied Van Lines #13 shipping label on unit. Reference: "Instruction Manual Radio tube Transmitter: Type TF" Style 325996. Westinghouse Co., 1921.
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.320688
label: catalog number
content: 320688
label: accession number
content: 241556
objectType: label: Object Name
content: radio transmitter
physicalDescription: label: Measurements
content: overall: 9 1/2 in x 17 in x 8 1/2 in; 24.13 cm x 43.18 cm x 21.59 cm