Wood's Radio "Re-Juv-A-Tube" unit
date: label: date made
content: ca 1925
name: label: maker
content: Clark Annis Manufacturing Co.
notes: label: Description (Brief)
content: Marked: "Wood's / Radio / Re-Juv-A-Tube / (UV201A & UV199 Type) / For use on Thorium Filament tubes / Clark Annis Mfg. Co. / 2540-48 / So. Wabash Avenue, Chicago". Specimen is a device employed to reactivate thoriated tungsten filaments in 199 and 201-A type vacuum tubes. A high voltage is applied to the filament for 20 seconds with the panel switch in the #1 position, and normal voltages are applied for 4 minutes with the switch in the #2 position. Six tube sockets are provided on the panel. A note on the partially torn instruction label states: "Charge 25 [cents] a tube if tube is OK when thru."
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Chicago
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.321553
label: accession number
content: 241556
label: catalog number
content: 321553
objectType: label: Object Name
content: vacuum tube regenerator
physicalDescription: label: Measurements
content: overall: 6 1/2 in x 13 3/4 in x 8 in; 16.51 cm x 34.925 cm x 20.32 cm