Sylvania type 3-AP-1 CRT
date: label: date made
content: ca 1943
name: label: maker
content: Sylvania Electric Products Inc.
notes: label: Description (Brief)
content: A 7-pin plastic base with glass bell, aquadag coating. Inked on electron gun: “349”. Donor’s card reads: “Cathode ray tube made by the Sylvania Corporation for the US government during World War II. A modern replacement for the type 906 tube [catalog number 325044]. For oscilloscopes and similar applications. Heater: 2.5 volts at 2.1 amperes. Typical operation: 1500 volts on anode #2, 240 to 560 volts on anode #1, negative grid bias for cutoff 25 to 75 volts. Deflection is one inch for 90 to 137 volts DC.” See also: https://www.radiomuseum.org/tubes/tube_3ap1.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 Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.325042
label: catalog number
content: 325042
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: cathode ray tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 11 1/2 in x 3 in; 29.21 cm x 7.62 cm