RCA / GE type UV200 "Radiotron" triode
date: label: date made
content: 1922
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: A 4-pin brass base with tipped S-shaped envelope, paper RCA label on envelope. Donor card reads: "Triode, made for the Radio Corporation of America and listed in their first catalog of tubes, dated 1 June 1922. A part of their original line of tubes. Known as a Radiotron, this was a "soft" tube for use as a detector. While there were come excellent tubes of this design, it was generally accepted that the UV-200 was not as good a detector as the AudioTron, the Electron Relay, or the De Forest "T" detector tubes. The UV-200 required a variable "B" voltage from 18 to 30 volts for best results. Filament: 5 volts at 1 ampere. Cost: $5.00 each in 1922. Contained about 50 microns of argon gas, otherwise the same as the UV-201. Plate is made of nickel, molybdenum grid wire, pure tungsten filament. Made by General Electric Company. Available in 1920." See also: https://www.radiomuseum.org/tubes/tube_uv200.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.324355
label: catalog number
content: 324355
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: 4 1/4 in x 1 3/4 in; 10.795 cm x 4.445 cm