RCA Radiotron type UV204A transmitting triode with sockets
date: label: date made
content: ca 1928
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: RCA "Radiotron" UV-204-A air-cooled transmitting triode. Brass base shell with three connectors and ceramic insulator, top contact, cylindrical BT-shaped envelope. Includes sockets (slate) with brass connectors. Stamped on base shell: "[RCA logo] / Radiotron / Model UV-204-A / 250 Watts / 232111 / Licensed only / For amateur Experimental / and entertainment use / and only to extent / indicated on attached notice / Serial 2038". Written on base insulator: "R2935", etched on base shell: "BS31977B", on top contact socket: "R3162B", on base contact socket: "R3163A" (Bureau of Standards property numbers.) Unit has two filament legs extending from the frame mount, the UV204 has only one. References: Tyne, "Saga of the Vacuum Tube," pages 327-328; https://www.radiomuseum.org/tubes/tube_uv204a.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 the United States Bureau of Standards, Dept. of Commerce
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320215
label: catalog number
content: 320215
label: accession number
content: 188571
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: triode
label: Object Name
content: vacuum tube
physicalDescription: label: Measurements
content: overall: 17 1/4 in x 4 in x 4 in; 43.815 cm x 10.16 cm x 10.16 cm
label: Measurements
content: tube: 14 1/4 in x 4 in; 36.195 cm x 10.16 cm
label: Measurements
content: top socket: 2 in x 3 1/2 in x 2 1/2 in; 5.08 cm x 8.89 cm x 6.35 cm
label: Measurements
content: bottom socket: 2 1/2 in x 3 1/2 in x 2 in; 6.35 cm x 8.89 cm x 5.08 cm