M-O Valve type S23 "Osram" tetrode
date: label: date made
content: ca 1936
name: label: maker
content: Marconi-Osram Valve Co., Ltd.
notes: label: Description (Brief)
content: A plastic 4-pin base (banana pins) with top contact, external contact emerging from top of base and affixed to the envelope with a circular patch. Clear domed envelope stamped: "Made & Patented in England / S23 / 46 2". Reference: https://www.radiomuseum.org/tubes/tube_s23.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 McMurdo Silver Corp., thru McMurdo Silver
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.311587
label: catalog number
content: 311587
label: accession number
content: 146541
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: tetrode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 7/8 in x 1 3/4 in; 12.3825 cm x 4.445 cm