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随着盒式录音机和录音磁带的发展,特别是金属磁带的出现,给盒式录音机磁头的设计提出了新的课题。众所周知,金属磁带与目前所有的其它三类磁带相比,有它独特的优点,它的频带宽、动态范围大、高频信噪比好、失真小等。这些优点对提高盒式录音机的性能非常有利。但由于金属磁带的矫顽力特别高这一特点使传统的录放兼用磁头无法实现良好的录音,因此在目前见到的兼容金属磁带的高性能
With the development of cassette recorders and recording tapes, especially the appearance of metal tapes, new problems have been raised in the design of the head of a cassette recorder. As we all know, metal tape and all the other three types of tape compared to today, it has its unique advantages, its bandwidth, dynamic range, high-frequency signal to noise ratio, small distortion and so on. These advantages are very beneficial to improve the performance of the cassette player. However, due to the characteristic of high coercive force of the metal tape, the traditional recording and reproducing head can not achieve good recording, so at present, the high performance of the compatible metal tape