RCA-De Forest type 211 / 511 transmitting triode
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A 4-pin (short) aluminum base shell with ceramic insulator, T-shaped envelope. Loose plate inside and burn mark behind envelope stamping. Base stamped: "RCA de Forest / Licensed / only to / extent / indicated / on carton"; on envelope: "Made in / 211 / 511 / U.S.A." Reference: https://www.radiomuseum.org/tubes/tube_511.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.323111
label: catalog number
content: 323111
label: accession number
content: 241556
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: 7 1/2 in x 2 1/4 in; 19.05 cm x 5.715 cm