General Electric experimental "Pliotron" triode
date: label: date made
content: ca 1918
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: A brass 4-pin base with ceramic insulator, tipped S-shaped envelope. Rectangular anode. Plastic tube insulator on lead wire in stem. "VT12" and ET21" inked on stem press. Paper labels: "R / 1584" (Bureau of Standards property number) and "#151". Reference: Tyne, "Saga of the Vacuum Tube," pages 149-151. The anode shape does not match any of the images in Tyne's book nor the other VT-Pliotron units.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from the United States Bureau of Standards, Dept. of Commerce
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320188
label: catalog number
content: 320188
label: accession number
content: 188571
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 4 1/4 in x 1 3/4 in; 10.795 cm x 4.445 cm