| 摘要 |
<p>PURPOSE:To prolong the life of a motor by revolving the motor at a speed lower than that at the time when a tape is running, while the tape is not in running. CONSTITUTION:When a power source switch 6 is turned on, driving current is supplied to a control circuit 2, and at this time the motor 1 runs at a speed lower than a required speed because a switch 4 is off. Next, when the switch 4 is turned on by tape running control operation, the motor 1 is run at the required speed, and a tape is run. When the constant tape running speed is two speeds, ''high'' and ''low'' in reproduction, or even when it is more than 3 speeds, running the motor 1 at a ''low'' speed is satisfactory.</p> |
