RCA type UX201A triode in a Cunningham type CX301A box
date: label: date made
content: ca 1926
name: label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: A 4-pin plastic base with S-shaped envelope, silvered, thoriated filament.. Stamped on base: "RCA / Radiotron / . UX 201-A ."; on envelope: "RCA". Includes data sheet and original box for a Cunningham CX-301-A triode. The Cunningham CX 301A is the same tube as the RCA UX 201 A. It is unclear if this 201 tube originally came in the 301 box or if it is the tube replaced in service by the 301. The 201 tube appears unused. Reference: Tyne, "Saga of the Vacuum Tube," pages 315-319; https://www.radiomuseum.org/tubes/tube_ux201a.html.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ZZ.RSN80503U09
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: triode
physicalDescription: label: Physical Description
content: cardboard (box material)
label: Physical Description
content: composition (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: electron tube: 11 cm x 4 cm; 4 5/16 in x 1 9/16 in