"Volutron" type A201 vacuum triode
date: label: date made
content: ca 1927
name: label: maker
content: Munder Electrical Co.
notes: label: Description (Brief)
content: A 4-pin brass base with ceramic insulator, tipless T-shaped envelope, silvered. Stamped on base shell: "Volutron / 8 volts / A / 201 / 1/4 ampere / amplifier". Reference: Tyne, "Saga of the Vacuum Tube," page 365; https://www.radiomuseum.org/tubes/tube_a_volutron.html.
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.323254
label: catalog number
content: 323254
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: 4 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm