| 摘要 |
<p>A magnetic disc recording and reproducing apparatus for magnetic discs wherein the gap of the recording and reproducing head is mounted parallel and ahead of a radial through the disc so as to record and reproduce a track and a pair of erasing heads are integrally formed with said recording and reproducing head and have gaps which are parallel and behind the same radial through disc so as to erase the outer edges of the track. The gap of the recording and reproducing head is symmetrically mounted with the erasing head gaps.</p> |
