Northern Electric type R215A "peanut" vacuum triode
date: label: date made
content: ca 1924
name: label: maker
content: Northern Electric Manufacturing Company
notes: label: Description (Brief)
content: A 4-contact plastic bayonet base with side pin, tipped T-shaped envelope, cylindrical shield. No maker's marks on tube. Box printed: "Northern Electric Company Limited Radio Detector and Amplifier R 215-A "Peanut" Vacuum Tube Patented 1917-1920-1921-1922, 2 Patented-1923 Not Licensed for Sale in the U.S.A."
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Richard H. Hronik
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2013.3110.71
label: nonaccession number
content: 2013.3110
label: catalog number
content: 2013.3110.71
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
label: Object Name
content: electron tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: box: 3 3/4 in x 1 1/4 in x 1 1/4 in x 1.5 cm; 9.525 cm x 3.175 cm x 3.175 cm x 19/32 in
label: Measurements
content: tube: 2 1/2 in x 1/2 in; 6.35 cm x 1.27 cm