Munder type 201A "Volutron" triode
date: label: date made
content: ca 1924
name: label: maker
content: Munder Electrical Co.
notes: label: Description (Brief)
content: A 4-pin plastic base with tipless S-shaped envelope, silvered. Stamped on top of envelope: "Volutron / 201-A / 1/4 A 5 V". Made by Munder Electrical Co., Springfield MA. Reference: Tyne, "Saga of the Vacuum Tube," page 365.
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: ZZ.RSN80616U41
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Physical Description
content: composition (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 4 1/4 in x 1 1/2 in; 10.795 cm x 3.81 cm