Fellows type FER1 triode
date: label: date made
content: ca 1925
name: label: maker
content: Fellows Magneto Co. Ltd.
notes: label: Description (Brief)
content: Marked: "FER1 / Filament Volts 4 / Anode Volts 40 to 80 / Filament Amps .1 / 43913 / Fellows Magneto Co. Ltd." A British 4-pin audio frequency triode with spiral grid and plate. Reference: Tyne: "Saga of the Vacuum Tube," page 392.
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.322511
label: catalog number
content: 322511
label: accession number
content: 241556
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
physicalDescription: label: Measurements
content: overall: 4 1/8 in x 1 3/4 in; 10.4775 cm x 4.445 cm