De Forest type 572 mercury vapor rectifier
name: label: maker
content: De Forest Radio Telephone & Telegraph Co.
notes: label: Description (Brief)
content: Half-wave mercury vapor rectifier. A 4-pin (short) brass shell base with ceramic insulator, top contact, T-shaped envelope, mercury fill. Stamped on base: "de Forest / Type 572 / Licensed only to extent / indicated on carton"; on envelope: "de Forest". Inked on stem: "4253 / 2r 9". Reference: https://www.radiomuseum.org/tubes/tube_572.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.323113
label: catalog number
content: 323113
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: rectifier
physicalDescription: label: Measurements
content: overall: 8 in x 2 1/4 in; 20.32 cm x 5.715 cm