Bell Labs type M-4041 traveling wave tube
date: label: date made
content: ca. 1962
label: date made
content: ca. 1964
label: date made
content: ca 1962
name: label: maker
content: Bell Laboratories
notes: label: Description (Brief)
content: A traveling wave tube assembly used for Telstar. Unit contains a type 4041 tube. This packaged unit consists of a tube with its magnetic circuit and radio frequency couplers joined together to form a compact unit. All elements are enclosed in a tubular aluminum housing, the tube being mounted axially within the unit. Between the tube and the inner wall of the housing are two Alnico V magnets and an array of field straighteners. The output power amplifier in the Telstar microwave repeater is required to accept a fractional milliwatt signal distributed over approximately 100 MHz bandwidth and amplify that signal about 4000 times to provide an output of several watts. Reference: Bell System Technical Journal 4, part 3 (July 1963), pages 1703-1748.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from American Telephone & Telegraph
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.322973
label: catalog number
content: 322973
label: accession number
content: 247512
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: traveling wave tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 5 in x 13 1/8 in x 1 3/4 in; 12.7 cm x 33.3375 cm x 4.445 cm