| http://www.w3.org/ns/prov#value | - In the case where this head control mechanism is employed in the video tape recorder of the helical scan type having such a head drum arrangement as shown in FIG. 1, since the rotary magnetic head must jump to a beginning position for slant tracks, such as indicated with X in FIG. 2, from a terminal position for slant tracks, such as indicated with Y in FIG. 2, on the magnetic tape in a period sho
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