With 2 x Half moon switcher and 6 pin cable The Model 147 has the same cabinet speaker and mechanical components as the Model 122; however the amplifier input and motor speed control circuits are different. This is primarily because this series was designed to be universal which means it could be connected to other organ brands. The signal input is single ended allowing a simpler connection to organs that have a built in speaker system as the Hammond A100 or a Wurlitzer. The Model 122 input is a differential double ended or balanced line design that provides for cancellation of any spurious noise that may be present. Also the motor speed switching uses a separate 120V AC signal rather than the DC voltage control of the Model 122. In operation the noticeable differences between the Model 122 and the Model 147 are the Model 122 s lower susceptibility to induced noise and a delay between operation of the speed control and the actual change in speed. Just like with the 122 and 142 the Leslie Model 145 is identical to Model 147 except that it is housed in a 33 tall cabinet and thus slightly easier to transport than the 41 tall Model 147.
Prestige Pianos and Organs 102 bell street preston Ph 1300 825 318
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