type J1 detector tube
date: label: date made
content: ca 1916
notes: label: Description (Brief)
content: A 4-pin base with brass shell, ceramic insulator, vertically-mounted cylindrical collector, tipped G-shape envelope. Marked on base: "J-1-Detector / Important / See Test Slip / Accompanying / This Tube". Possibly made by Jefferson Electric Mfg. Co.
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.322880
label: catalog number
content: 322880
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 3 3/4 in x 2 in; 9.525 cm x 5.08 cm