Eveready-Raytheon type ER46 zero-bias "B" triode
date: label: date made
content: ca 1932
name: label: maker
content: Eveready Raytheon
notes: label: Description (Brief)
content: A 5-pin plastic base with S-shaped envelope. Base stamped: "Eveready / Raytheon / -ER-46-". Paper label: "Raytheon / Trade Mark / 4-Pillar / Radio Tube / 53". A double grid power amplifier. Eveready-Raytheon type ER-46 zero-bias "B" triode. This tube, introduced in 1931-32 ushered in the general use of class B audio amplifiers and is essentially identical to that produced by all American tube makers. Reference: "https://www.radiomuseum.org/tubes/tube_er46.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 McMurdo Silver Corp., thru McMurdo Silver
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.311581
label: catalog number
content: 311581
label: accession number
content: 146541
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: triode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 5 1/2 in x 2 1/8 in; 13.97 cm x 5.3975 cm