U.S. Philips Corporation

Doeko Stoppels

Leonardus A Van Hoof

Ulrich E Enz

Eelco G Visser

Johannes P Damen

Piet F Bongers

Peter G Boonen

A magnetic head for a magnetic recording and playback device. The head comprises a Mn-Zn-ferrous ferrite core having a very high saturation magnetization and magnetic permeability. The Mn-Zn-ferrous-ferrite has a composition according to the formula

Magnetic head having a core of Mn-Zn-Co ferrous ferrite

A magnetic head for a magnetic recording and playback device includes a core having two core parts which are spaced from each other and between which a transducing gap is formed. The core consists of a (preferably monocrystalline) zinc-ferrous ferrite. A preferred range of compositions is defined by the formula

Magnetic head having cobalt-containing zinc-ferrous ferrite core

Magnetic head for a magnetic recording and playback apparatus includes a core of a Mn--Zn-ferrous ferrite having a very high saturation magnetization. The Mn--Zn-ferrous ferrite has a composition (not counting optional substitutions) according to the formula

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Eindhoven, Netherlands

Doeko Stoppels