General Electric type TB1 "Kenotron" tube
date: label: date made
content: 1917
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: Brass base shell with 3-pins (a fourth pin is ground away), ceramic insulator, fiber insulation in stem. "TB1" printed on envelope and inked on stem press. Tipped S-shape envelope. Reference: Tyne, "Saga of the Vacuum tube," pages 147-148.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320334
label: catalog number
content: 320334
label: accession number
content: 242269
objectType: label: Object Name
content: Electron Tube, Diode
label: Object Name
content: diode
label: Other Terms
content: Electron Tube, Diode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/4 in x 1 3/4 in; 10.795 cm x 4.445 cm