RCA / Cunningham type 59 "Radiotron" triple grid power amplifier tube
date: label: date made
content: ca 1933
name: label: maker
content: Radio Corporation of America
label: maker
content: E. T. Cunningham, Inc.
notes: label: Description (Brief)
content: A 7-pin plastic base with domed envelope, getter stain. Marked on base: "RCA / Cunningham / Radiotron"; stamped on envelope: "Made in / 59 / U.S.A." Mica top plate is a disc shape. Reference: https://www.radiomuseum.org/tubes/tube_59.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.320966
label: catalog number
content: 320966
label: accession number
content: 241556
objectType: label: Object Name
content: pentode
label: Object Name
content: vacuum tube
physicalDescription: label: Measurements
content: overall: 5 1/4 in x 2 in; 13.335 cm x 5.08 cm