Western Electric type 272A vacuum tube
date: label: date made
content: ca 1930
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: Audio frequency triode. Marked: "Western Electric / Made in U.S.A. / -272A-". Plastic base with 5 pins, S-shaped envelope. Getter stain on inner wall. "The No. 272A is a general purpose vacuum tube having an indirectly heated cathode which permits operation of the heater element directly on alternating current. It is suitable for use as a detector or power amplifier tube in applications requiring small values of output power." Reference: https://www.westernelectric.com/s/272A.pdf.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321061
label: catalog number
content: 321061
label: accession number
content: 241556
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm