RCA type 868 photo-tube
date: label: date made
content: ca 1928
name: label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A plastic 4-pin base (long pins) with T-shaped envelope. Donor’s card reads: “Photo-tube made by the Radio Corporation of America before 1930. While used for a number of purposes, to control automatic door-openers, counters, and other light sensitive devices, it was also used as the light sensitive pick-up tube in early television transmitters [as was catalog number 324406]. Semi-circular anode, 100 volts maximum.”
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.324657
label: catalog number
content: 324657
label: accession number
content: 252994
objectType: label: Object Name
content: Photo Tube
label: Other Terms
content: Photo Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 in x 1 1/8 in; 10.16 cm x 2.8575 cm