Experimental Farnsworth image dissector
date: label: Date made
content: 1927
name: label: maker
content: Farnsworth, Philo T.
notes: label: Description
content: In 1927 inventor Philo T. Farnsworth designed and made this television transmission tube that he called an "image dissector." Visible light was focused on a specially-coated detector at the front of the tube. That coating emitted electrons that were received at the tube's anode. The tube sampled only a small area of the detector at any given moment but by repeatedly scanning the entire detector the image could be converted to electrical signals. Those signals could be reconverted to visible light in a television receiver.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Dr. Philo T. Farnsworth
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.328789
label: catalog number
content: 328789
label: accession number
content: 276137
objectType: label: Object Name
content: television transmitting tube
label: Object Name
content: c
physicalDescription: label: Measurements
content: overall: 12 1/4 in x 4 in x 4 1/2 in; 31.115 cm x 10.16 cm x 11.43 cm