Svenska type 416B microwave triode
date: label: date made
content: 1949
label: date made
content: ca 1960
notes: label: Description (Brief)
content: A metal can with 4-pins on the bottom, glass insulated top contact. Stamped: "LM". Donor’s card reads: “Triode made by Svenska Elektronror, a subsidiary of Telefonaktiebolaget L. M. Ericsson of Stockholm, Sweden. Intended for use as a microwave amplifier, mixer, and oscillator for frequencies around 4000 megacycles. A high quality tube selling in the US in 1961 for about $46.00. A duplicate of the Western Electric type 416-B tube except the gold plate which marks the Ericsson tube. Guaranteed life of 10000 hours with controlled heater voltage. Heater type 6.3 volts at 1.18 ampere. Maximum plate voltage 270, current 33 milliamps, grid bias from 15 volts positive to 15 volts negative, maximum plate dissipation 7.5 watts. Amplification factor 300.” See also: https://www.radiomuseum.org/tubes/tube_416b.html.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.325185
label: catalog number
content: 325185
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube,Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube,Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 1 7/8 in x 2 in; 4.7625 cm x 5.08 cm