Dumont Palmer picture 7" with targets beanie CRT exp.
date: label: date made
content: 1951-05-28
name: label: associated user
content: unknown
label: maker
content: DuMont Company
notes: label: Description (Brief)
content: Stamped: "Dumont / R40 / Made in U.S.A." Experimental cathode ray tube with cross-shaped structure behind the phosphor. Four quadrant structure, each being a target with a fifth target in the center. Each of the four has a pair of electrodes. An additional electrode emerges from the structure. Aquadag inner coating. Electrostatic deflection. 12-pin plastic base. Five electrodes for the electron gun in the neck, and one more in the side of the tube.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Fairchild Camera and Instrument Corporation, Dumont Laboratories Div., thru Edgar S. Hill
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.328195
label: catalog number
content: 328195
label: accession number
content: 270517
objectType: label: Object Name
content: Electron Tube, CRT
label: Object Name
content: cathode ray tube
label: Other Terms
content: Electron Tube, CRT; Electron Tubes
physicalDescription: label: Measurements
content: overall: 15 1/2 in x 7 1/4 in; 39.37 cm x 18.415 cm