"Silvertone" type 224 screen grid tetrode
date: label: date made
content: ca 1929
notes: label: Description (Brief)
content: A 5-pin plastic base with top contact, screen mesh grid, S-shaped envelope, getter stain. Molded on base: "Silvertone / -224-13X". Reference: https://www.radiomuseum.org/tubes/tube_224.html. Sears distributed these tubes but they were made by a different company as a private label product.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Donald J. Detwiler
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.312360
label: catalog number
content: 312360
label: accession number
content: 163276
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: tetrode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 5 in x 1 3/4 in; 12.7 cm x 4.445 cm