RCA type 3A4 "Radiotron" vacuum pentode
date: label: date made
content: ca 1942
name: label: maker
content: RCA Corporation
notes: label: Description (Brief)
content: A 7-pin glass base with tipped T-shaped envelope. Miniature tube in original box. Paper label reads: “This developmental radio tube / RMA Sample 3A4 / is manufactured and licensed for / use to extent indicated on carton by / RCA Radiotron Division / RCA Manufacturing Co., Inc. / Harrison, N.J. / Form 9322”. Reference: https://www.radiomuseum.org/tubes/tube_3a4.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 Susan Horle
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.314025
label: catalog number
content: 314025
label: accession number
content: 195337
objectType: label: Object Name
content: pentode
label: Object Name
content: Electron Tube
label: Object Name
content: radio tube
physicalDescription: label: Physical Description
content: cardboard (box material)
label: Measurements
content: tube: 2 in x 5/8 in; 5.08 cm x 1.5875 cm
label: Measurements
content: box: 2 1/4 in x 1 1/4 in x 1 1/4 in; 5.715 cm x 3.175 cm x 3.175 cm