Tung-Sol type 703A "doorknob" transmitting triode
date: label: date made
content: ca 1938
name: label: maker
content: Tung-Sol
notes: label: Description (Brief)
content: A 4-pin glass base with oval glass envelope, tip on top. Stamped: “Tung-Sol / Made in U.S.A. / CTL703A"; inked on bottom: "J6237". An air-cooled ultrahigh frequency transmitting tube of the so-called "doorknob" design. Reference: https://www.radiomuseum.org/tubes/tube_703a.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: EM.323269
label: catalog number
content: 323269
label: accession number
content: 250988
objectType: label: Object Name
content: triode
label: Object Name
content: Electron Tube
physicalDescription: label: Measurements
content: overall: 2 in x 2 in; 5.08 cm x 5.08 cm