| 摘要 |
<p>PURPOSE:To curtail the longitudinal vibration of a tape in which a wow and a jitter are generated by providing a rotary impedance roller between tape paths of a rotary drum and a slant pin. CONSTITUTION:Between a rotary drum 60 and an input side slant pin 32b, and between the rotary drum 60 and an output side slant pin 33b, a rotary impedance roller 53 and a rotary impedance roller 54 are provided, respectively. That is, a top point of an M type at the time of loading is lengthened, and the rotary impedance rollers 53, 54 having an inertia moment provided between the slant pins 32b, 33b and the rotary drum 60 come into contact with the magnetic surface of a magnetic tape 20 and rotate. In such a way, a longitudinal vibration of the running tape 20 is eliminated, and a jitter and a wow can be curtailed.</p> |
