| 摘要 |
<p>PURPOSE:To obtain an operation controlling circuit which is suitable for a tape recorder equipped with a dubbing function, by temporarily setting the 2nd tape recorder under a sound recording condition by the attracting operation of a plunger to a stopped condition when the 1st tape recorder in a dubbing operation is switched to a stopped condition. CONSTITUTION:When the magnetic tape of the 1st tape recorder runs to the end under a condition where a tape recorder is in a dubbing operation, the 1st tape recorder is returned from the reproducing operation to a stopping condition by the action of an automatic stopping device. When the 1st tape recorder is returned to the stopping condition, the 1st switch 1 which is under a closed condition is opened and, at the same time, the 1st control switch 27 which is under an opened condition is closed. When the 1st switch 1 is opened, a charging current is made to flow to a capacitor 14 constituting the 1st driving signal generating circuit 13 and, as a result, a control transistor 12 and drive transistor 11 are set to a conductive condition. When the transistors 12 and 11 are set to the conductive condition, the 2nd plunger 9 makes an attracting operation and the 2nd tape recorder is set to a temporarily stopped condition under a sound recording condition.</p> |
