Western Electric type 104D vacuum triode
date: label: date made
content: ca 1921
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: Tube in original cardboard box. A metal shell base with four pins and plastic insulator. Double V filament. G-shaped envelope. Marked: patent dates: "1-15-07 / 2-18-08 / 10-17-16 / 12-14-16 / 12-17-18 / 1-27-20 / 10-5-20". 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 Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.322567
label: catalog number
content: 322567
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: Vacuum tube
label: Object Name
content: vacuum tube
label: Object Name
content: triode
physicalDescription: label: Physical Description
content: cardboard (box material)
label: Measurements
content: tube: 4 1/4 in x 2.25 cm; 10.795 cm x 7/8 in
label: Measurements
content: box: 5 3/4 in x 3 1/4 in x 3 1/4 in; 14.605 cm x 8.255 cm x 8.255 cm