Western Electric type 104D vacuum triode
date: label: date made
content: ca 1926
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: Donor card reads: "Triode made by Western Electric Company in the early 1920s for use as a voice frequency and carrier frequency amplifier for telephone repeater equipment. Oxide coated filament, 4.5 volts at 1 ampere. With about 190 volts on the plate this tube will give .16 watts output."
label: Description (Brief)
content: A plastic base with four brass pins. G-shaped envelope. Marked: "Western Electric / Made in U.S.A. / 104-D / Patent 1209324 1307510 1354939 1465381 1479778 1565603 / 1201273 RE-14572 1329283 1419528 1478072 1542385 Pat. Pend." Reference: https://www.radiomuseum.org/tubes/tube_104d.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.324308
label: catalog number
content: 324308
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/4 in x 2 1/4 in; 10.795 cm x 5.715 cm