Zenith type 1LB4 power pentode
date: label: date made
content: ca 1940
name: label: maker
content: Zenith
notes: label: Description (Brief)
content: A 5-pin metal base with center post, T-shaped envelope. Stamped: “Zenith / Made in U.S.A.” Donor’s card reads: “Power pentode made for the Zenith Radio Corporation of Chicago. Glass lock-in type used in the output stage of battery-operated radio receivers. Filament type: 1.4 volts at .05 ampere.” See also: https://www.radiomuseum.org/tubes/tube_1lb4.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.325290
label: catalog number
content: 325290
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: pentode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 2 3/4 in x 1 1/4 in; 6.985 cm x 3.175 cm