| 摘要 |
PURPOSE:To improve the operability for setting the number of tempos, by setting instantaneously the tempo in the middle by simultaneously pushing an up-switch and a down-switch, and correcting acceleration by pushing continuously the respective switches. CONSTITUTION:By pushing an up-switch 1 or a down-switch 2, an IN signal becomes a level 1. From the time, a flip-flop group starts counting by a signal of 2Hz. When about 2sec elapse after starting the pushing, a Q output of a T-F/F 13c rises, and in an OUT terminal, a 4Hz acceleration pulse appears. Subsequently, when the switch is further pushed continuously, an 8Hz acceleration pulse appears after 2sec. Also, at the time of simultaneous pushing of the up-switch 1 and the down-switch 2, the tempo is set to 120.
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