Northern type AC608R "Marathon" vacuum triode
date: label: date made
content: 1927
name: label: maker
content: Northern Manufacturing Co.
notes: label: Description (Brief)
content: A plastic base with 4 pins on the bottom and 2 "snap buttons" on opposite sides. Tipless clear glass T-shaped envelope. Donor's card reads: "Triode made by the Northern Electric Company of Newark, N.J. in the 1920s for use in converting conventional battery operated radio receivers to operation from an AC power source. Mounted on a conventional UX type long pin base, with plate and grid connected to the usual pins, and the cathode connected to one of the regular filament pins. Two snap buttons are mounted on the top edge of the base [and serve as] connections for the heater. Heater: 1.5 volts at about 1.75 amperes. This type of tube was designed to replace the UX-201-A tube and the batteries needed for its operation. This tube followed shortly after the type 401 McCullough (Kellogg) AC replacement tube." See also: https://www.radiomuseum.org/tubes/tube_608r.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 Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.324393
label: catalog number
content: 324393
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/4 in x 1 1/4 in; 10.795 cm x 3.175 cm