Ohio type 3956 motor and Jenkins drum scanner
date: label: date made
content: ca 1930
label: associated date
content: 1929
name: label: maker
content: Jenkins, C. Francis
notes: label: Description (Brief)
content: Black drum (7.5" diameter x 3.25") on shaft of 1/8 horse-power Ohio type 3956 motor, serial number 106,141. The drum scanner includes a coronal discharge lamp in the hub; quartz rods extend from the lamp cathode glow targets to miniature holes in the drum's surface. The picture is developed by the rotation of the drum and the radio controlled light of the lamp. Reference: "Radiomovies, Radiovision, Television" by Jenkins, page 66. Recorded (1932) as "Television Receiver employing a quartz-rod drum scanner, with a neon lamp located at the inside ends of the quartz rods."
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from C. Francis Jenkins
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.314256
label: catalog number
content: 314256
label: accession number
content: 117977
objectType: label: Object Name
content: television component
label: Object Name
content: mechanican television component
label: Object Name
content: mechanical television component
label: Other Terms
content: Television
physicalDescription: label: Measurements
content: overall: 7 1/4 in x 16 in x 7 1/2 in; 18.415 cm x 40.64 cm x 19.05 cm