QUICK TRAVERSE/REWINDING CONTROL CIRCUIT OF MAGNETIC RECORDING AND REPRODUCING DEVICE

PURPOSE:To control speed so that a winding reel and a feeding reel are stably rotated at a turning speed corresponding to a speed difference voltage at the quick-feeding mode and the rewinding mode by forming a speed difference voltage generating circuit generating voltage with a level corresponding to the turning speed difference between the winding reel and the feeding reel. CONSTITUTION:The titled device is provided with otation detecting sensor 11, 12 for detecting respective turning speeds of the winding reel and the feeding reel, and a speed difference voltage generating circuit 19 for generating the speed difference voltage in level corresponding to the turning speed difference of both reels. The speed difference voltage is sent to a switching circuit 22 through a terminal 21. At the quick-feeding and rewinding mode, the speed difference voltage is applied to the terminal 21 and a servo circuit 34 controls the speed of a motor 4 rotating the winding or feeding reel so that the motor 4 rotates stably at a turning speed corresponding to the speed difference voltage. Consequently, the tape travelling speed is kept at an approximately fixed value in the quick traverse/rewinding mode, the tape is prevented from damage, and even if large load is applied during the tape travelling, the tape travelling speed is kept at the approximately fixed value.