| 摘要 |
Described is a transducer head assembly for magnetic disk files, the assembly using the informational data itself recorded on the disk in the form of a plurality of annular tracks for precisely positioning the head assembly with respect to the individual tracks. For this purpose, the assembly includes an upper head cooperable with the upper face of the record disk and a lower head cooperable with the lower face of the record disk, the lower head being spaced from the upper head one-half the distance between a pair of adjacent tracks such that one head may be used for positioning purposes by centering same between two adjacent tracks on the respective face of the disk, while the other head being thereby centered with a track on its respective face of the disk, may be used for recording, reproducing or erasing data with respect to the later track.
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