Mechanical Television

Jenkins Model 300/301/302

This scanner uses lens disk to produce an image about 4 1/2 inches across. A crater lamp is used. Originally, the set worked with Jenkins 48 l broadcasts. At some point 45 and 60 line models were made. The motor is a 60 Hz eddy curent type. The set required the Jenkins Self-Synchronizing Receiver, which tuned about 1650 to 3100 kHz and had a bandwidth of about 30 kHz. and had circuitry to drive phonic coils for synchronization. Later, the model J-DS receiver was used.

These models were made from late 1929 through about 1932.