De Forest "Audion" radio tube
name: label: maker
content: De Forest Radio Telephone & Telegraph Co.
notes: label: Description (Brief)
content: Spherical glass envelope, brass base, with four leads on top. Candelabra screw base with glass insulator. Double filament, single grid, single plate. Marked: "Hudson fil / Pat. Appl'd For". May be GE Collection #299.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from General Electric Research Laboratory, thru W. C. White and J. R. Morgan
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.315603
label: catalog number
content: 315603
label: accession number
content: 220105
objectType: label: Object Name
content: vacuum tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 3 1/4 in x 2 1/8 in; 8.255 cm x 5.3975 cm