| 摘要 |
PURPOSE:To realize a long period operation by providing a step motor part connected with stepping motor drive signal generation part and providing a tact bar directly driven by the step motor part. CONSTITUTION:At the lower part of a frame body 1 is placed a step motor 4, and in front of this step motor 4 is placed a loud speaker 5, and at the bottom of the frame body 1 is placed a power source 6 consisted of batteries. And after sliding a button of slide type control body 7 to an optional tempo and rhythm scale, power is turned on. Then the step motor is driven by a comb shaped signal controlled by pulse generating circuit of power control part, and the step motor 4 continuously moves the tact bar 2 reciprocally at the range of 72 deg. at every 4 pulses, and a sound is issued at the reverse motion of the tact bar 2 from the loud speaker 5. |
