录音设备上的一种装置，它能精确地把重放磁头或组合磁头调准到记录介质的磁道上。
On dictation equipment, a device for accurate alignment of playback head, or combined head, to the track on the recording medium.
因而录放装置使用上该磁头后，可以用于宽频带直接重放，且能够使信噪比得到很大改善，该磁头是一种理想的重放磁头。
So the tape recorder which adopts this magnetic head can be used for wide band direct replay and makes signal-noise ratio improvement, it is an ideal playback head.
因而录放装置使用上该磁头后，可以用于宽频带直接重放，且能够使信噪比得到很大改善，该磁头是一种理想的重放磁头。
So the tape recorder which adopts this magnetic head can be used for wide band direct replay and makes signal-noise ratio improvement, it is an ideal playback head.
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