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This scanner uses a drum and shutter to produce an image about 7 inches across. A flat plate neon is used. The motor is a 60 Hz syncronous model, which allows synchronization within the same AC power system. Originally, the set worked with Jenkins 48 line broadcasts. At some point 45 and 60 line models were made. Originally, it worked with the Jenkins Special Television Receiver, which tuned about 1650 to 3100 kHz and had a bandwidth of about 30 kHz. Later, it worked with the model JD and JD-30 receiver. These models were made from late 1929 through about 1932.
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