RCA type 917 vacuum phototube
date: label: date made
content: ca 1943
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A 4-pin plastic base with top contact, T-shaped envelope. Trough-type reflector mounted vertically with a metal rod at the focus. Donor’s card reads: “Gas phototube made by the Radio Corporation of America during World War II. Low leakage type with anode terminal cap and S-1 response. For light measuring and relay applications. 500 volts maximum anode voltage at 10 microamperes.”
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.324808
label: catalog number
content: 324808
label: accession number
content: 252994
objectType: label: Object Name
content: Vacuum Phototube
label: Object Name
content: phototube
label: Object Name
content: photoelectric cell
label: Other Terms
content: Vacuum Phototube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 1 1/8 in; 11.43 cm x 2.8575 cm