RCA type UV201A "Radiotron" triode
date: label: date made
content: 1924
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: Brass shell with 4 pins, tipped S-shaped envelope. RCA label on envelope. Donor card reads: "Triode made for the Radio Corporation of America. One of the first "A" models of the original UV-201. A very marked improvement of the original design. A sensitive detector and a good amplifier. This tube [type] became, with several base and envelope modifications, the general purpose tube used in most battery operated radio received from 1923 until supplanted by AC-operated receivers. Thoriated tungsten filament: 5 volts at 1/4 ampere; 135 volts maximum on the plate with a 9 volt negative grid bias. Made by General Electric company, announced at the New York Radio Show in December 1922."
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.324375
label: catalog number
content: 324375
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 in x 1 3/4 in; 10.16 cm x 4.445 cm