General Motors Labs "Visitron" phototube
notes: label: Description (Brief)
content: A 4-pin plastic base with S-shaped envelope. Trough-type reflector mounted vertically with metal rod at focus. Stamped on back of reflector; "Visitron / Ser 41544 / Pat Pend / GM Lab, Inc / Chicago U.S.A."
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.323064
label: catalog number
content: 323064
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: electron tube, photodiode
label: Object Name
content: photodiode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm