Ediswan / BBC type ARDE triode
date: label: date made
content: 1923
name: label: maker
content: Ediswan Co.
notes: label: Description (Brief)
content: Markings: "740 / BBC / type approved by Post Master General / Ediswan / ARDE / 2 Volts Max. / Dull Emitting". A high frequency triode with four-pin brass base, banana pins, plastic insulator molded with "ES" logo. Tipped T-shaped envelope with internal getter stain. Reference: Tyne, "Saga of the Vacuum Tube," page 373.
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.322487
label: catalog number
content: 322487
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 4 1/4 in x 1 1/8 in; 10.795 cm x 2.8575 cm