Object Details
associated user
unknown
associated person
Jenkins, C. Francis
maker
Jenkins, C. Francis
Description (Brief)
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."
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.
Location
Currently not on view
Credit Line
from C. Francis Jenkins
Date made
c1929
date made
ca 1929
ca. 1929
associated date
1929
ID Number
EM.314254
catalog number
314254
accession number
117977
Object Name
Receiver, television
television receiver
mechanical television receiver
Other Terms
Receiver; Receiver, television; Television
Measurements
overall: 18 in x 18 1/2 in x 13 in; 45.72 cm x 46.99 cm x 33.02 cm
See more items in
Work and Industry: Electricity
Data Source
National Museum of American History
Link to Original Record
Record ID
nmah_712626