RCA Cunningham type 2A5 "Radiotron" vacuum pentode
date: label: date made
content: ca 1934
name: label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: A vacuum pentode for power amplification. A 6-pin plastic base with domed envelope, getter stain. Marked: "RCA Cunningham / Radiotron", and stamped: "Made in / 2A5 / U.S.A." Paper label reads: "Sylvania / Set Tested Radio Tubes / Good Doubtful [checked] Bad / 9/14/39 / John Bengston / Rock Island. Ill. Phone: R.I. 555 / 730", Reference: https://www.radiomuseum.org/tubes/tube_2a5.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.241556.673
label: accession number
content: 241556
label: catalog number
content: 241556.673
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: pentode
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm