Amperex type 849 transmitting triode
name: label: maker
content: Amperex
notes: label: Description (Brief)
content: A three electrode transmitting triode with a thoriated-tungsten filament, air-cooled, for use on a Class A and Class B audio-frequency amplifier and oscillator. Plate contact on top. Appears to be asbestos insulation in upper stem. Markings: inked in base: "477 / Amperex". Reference: https://www.radiomuseum.org/tubes/tube_849.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 Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.323015
label: catalog number
content: 323015
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: triode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 14 1/2 in x 4 in; 36.83 cm x 10.16 cm