GE / RCA type UX199 triode
date: label: date made
content: ca 1926
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: A 4-pin plastic base with tipless T-shaped envelope. Donor's card reads: "Triode made for the Radio Corporation of America for both commercial and amateur use, also for home broadcast reception. A dry cell operated tube, 3 volt filament, .06 amperes. Used as a general purpose tube, except as audio output, where the use of the UX-120 is intended. Extensively used by RCA in the radio frequency, intermediate frequency, and tuned radio frequency stages of both commercial and broadcast receivers. [Catalog number 324387 is a] re-based and improved version. Made by General Electric Company, on the new standard "UX" base, announced in August 1925. Pure tungsten filament was modified to require 3.3 volts instead of the 3 volts previously used in the 199 tubes." See also: https://www.radiomuseum.org/tubes/tube_ux199.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.324386
label: catalog number
content: 324386
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: 3 1/2 in x 1 1/8 in; 8.89 cm x 2.8575 cm