Electromagnetic transducer head

Details Electromagnetic transducer head Electromagnetic transducer head

1979-01-11

1981-01-20

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360127, 29603, G11B 514

Patent

active

042466199

ABSTRACT:
An electromagnetic transducer head for a tape recording and reproducing system comprises a pair of generally U-shaped single crystalline ferrite cores having their first legs secured together and their second legs spaced from each other to form a magnetic gap in which a wafer of glossy material is provided. Each of the ferrite cores has crystal planes (211), (110) and (111). The magnetic gap is aligned to the crystal plane (111) and the second legs of the cores are shaped to provide a tape contact surface which is parallel with the crystal plane (211). The crystal plane (110) is at right angles to the planes (211) and (111) and forms a passage for magnetic flux. The crystallographic axis <110> of each core extends at an angle to the magnetic gap so as to meet the axis <110> of the other core at a point aligned with the tape contact face.

REFERENCES:
patent: 3810245 (1974-05-01), Ozawa et al.
patent: 3931642 (1976-01-01), Kugimiya et al.

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