Western Electric type 245A screen grid tetrode
date: label: date made
content: ca 1927
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: A 5-pin base with top contact, screen grid, S-shaped envelope. Stamped: "Western Electric / Made in U.S.A. / 245-A". Donor’s card reads: “Screen grid tube made by the Western Electric Company in 1935 or before. Used in telephony as a carrier and radio frequency voltage amplifier, as a detector, and as an audio frequency voltage amplifier. Heater 2 volts at 1.6 amperes.”
label: Description (Brief)
content: "Applications: Carrier-frequency and radio-frequency voltage amplifier, detector, and audio-frequency voltage amplifier." Reference: https://www.westernelectric.com/s/245A.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 Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.325212
label: catalog number
content: 325212
label: accession number
content: 252994
objectType: label: Object Name
content: tetrode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 5 in x 1 3/4 in; 12.7 cm x 4.445 cm