Jenkins mechanical television (scanning disc)
date: label: Date made
content: c1929
label: date made
content: ca 1929
label: date made
content: ca. 1929
label: associated date
content: 1929
name: label: associated user
content: unknown
label: associated person
content: Jenkins, C. Francis
label: maker
content: Jenkins, C. Francis
notes: label: Description (Brief)
content: Jenkins mechanical television (scanning disc). Round metal disc 12" diameter with 24 glass lenses set around the perimeter. Mounted on shaft driven by 1/20 horse-power Ohio motor #251338. Variable friction drive. This scanning disc is so mounted that synchronization is attained by moving the motor to or from the center of the scanning disc. This is the simplest form of "radiovisor" and often constructed. Recorded (1932) as a "perforated disc television receiver driven by friction disc; the motor is shifted for synchronism."
label: Description (Brief)
content: This is the kit that Jenkins sold to radio amateurs 1929-1930. The kit consisted of everything except the motor and sold for $12.50. Jenkins sold thousands of these kits - the reception was poor and most of the trouble was with the synchronization.
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.314254
label: catalog number
content: 314254
label: accession number
content: 117977
objectType: label: Object Name
content: Receiver, television
label: Object Name
content: television receiver
label: Object Name
content: mechanical television receiver
label: Other Terms
content: Receiver; Receiver, television; Television
physicalDescription: label: Measurements
content: overall: 18 in x 18 1/2 in x 13 in; 45.72 cm x 46.99 cm x 33.02 cm