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 (without housing) used for Telstar satellites. A 12" long, thin glass tube containing a spiral copper wire, designed to amplify a 90 MHz broadband signal 4080 MHz beacon tracking signal. The spiral helix consists of a winding of 10 mil. diameter molybdenum wire, wound with an inside diameter of 80 mils. The base has a rubber insulation socket with six colored leads for external circuit connections. Reference: Bell Systems 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.322971
label: catalog number
content: 322971
label: accession number
content: 247512
objectType: label: Object Name
content: traveling wave tube
physicalDescription: label: Measurements
content: overall: 12 3/8 in x 1 3/8 in; 31.4325 cm x 3.4925 cm