Eveready-Raytheon type ER239 vacuum pentode
name: label: maker
content: Eveready Raytheon
notes: label: Description (Brief)
content: A 5-pin plastic base with top contact, screen-mesh grid, S-shaped envelope. Base stamped: "Eveready / Raytheon / -ER 239-". Paper label: "Eveready / Raytheon / 4-Pillar / Radio Tube / 122". Reference: https://www.radiomuseum.org/tubes/tube_er239.html.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ZZ.RSN80524U02
objectType: label: Object Name
content: pentode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Physical Description
content: composition (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: electron tube: 4 1/2 in x 1 1/2 in; 11.43 cm x 3.81 cm