Daven type MU20 vacuum triode
date: label: date made
content: ca 1927
name: label: maker
content: Daven Radio Co.
notes: label: Description (Brief)
content: A 4-pin plastic base with silvered, S-shaped envelope. Base stamped: "B / 1". Paper label on tube reads: "Fil. Volts 6 Fil. Amp. 1/4 / Daven Tube / MU 20 / Warning: / Positively no / adjustments if / this label is removed. / No. 43857 / Daven Radio A 4-pin plastic base with short pins, silvered S-shaped envelope. Base stamped: "B / 1". Paper label on tube reads: "Fil. Volts 6 Fil. Amp. 1/4 / Daven Tube / MU 20 / Warning: / Positively no / adjustments if / this label is removed. / No. 43857 / Daven Radio Corporation . Trade Mark Reg. / Dist. Test [blank] / Dealer test [blank]". Reference: https://www.radiomuseum.org/tubes/tube_mu20.html. Mark Reg. / Dist. Test [blank] / Dealer test [blank]". Reference: https://www.radiomuseum.org/tubes/tube_mu20.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 Henry Wirth
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.312383
label: catalog number
content: 312383
label: accession number
content: 163277
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/8 in x 1 3/4 in; 10.4775 cm x 4.445 cm