Extended life multichannel magnetic transducer

In a multichannel magnetic transducer assembly having a pole tip plate of a nonmagnetic material, formed of two corresponding half-tip plates abutting at a transducing gap plane, said half-tip plates each including a plurality of machined spaced parallel slots receiving a plurality of magnetic pole tips securely mounted therein, corresponding pole tips of each half-tip plate being mounted in registration with each-other having nonmagnetic transducing gap material disposed between them, a core holder made of a nonmagnetic electrically conductive material, supporting a plurality of spaced magnetic core members with coil means, said core holder having a surface receiving the pole tip plate in mated secured engagement and with the pole tips engaging the core members to form an integral multichannel transducer assembly having a plurality of magnetic transducer circuits, the improvement comprising:

• (a) each half-tip plate having a first part (19) made of a nonmagnetic, wear-resistant, machineable material, extending in the transducer-to-medium interface area and a contiguous second part (20) made of a nonmagnetic, conductive, machineable material, said first part having a first (21) and a second (35) opposite planar surface, said second part (20) having a third planar surface (22) confronting with said first planar surface (21) of said first part (20);
• (b) a bond integrally joining said first (19) and second (20) parts at said respective confronting first (21) and third (22) planar surfaces;
• (c) said plurality of parallel slots (127) extending transversely with respect to said integrally joined planar surfaces (21;
• 22);
• and
• (d) said corresponding half-tip plates (16a;
• 16b) being assembled with their respective first parts (19) abutting at said respective second planar surfaces (35) forming said transducing gap plane.