RCA type 7B8LM "Radiotron" pentagrid converter
date: label: date made
content: ca 1940
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: An 8-pin plastic base with center post, tipless T-shaped metal envelope. Stamped: "[RCA logo] Radiotron / Made in U.S.A. / 7B8/LM / RE 2 / Licensed / as stated / on carton". Reference: https://www.radiomuseum.org/tubes/tube_7b8lm.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.313825
label: catalog number
content: 313825
label: accession number
content: 195337
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: heptode
physicalDescription: label: Measurements
content: overall: 2 5/8 in x 1 1/4 in; 6.6675 cm x 3.175 cm