Reproducing transducer capable of tracking control

A reproducing transducer in an apparatus for reproducing an information signal recorded on a track on a rotary recording medium, said reproducing transducer comprising:

• a reproducing tracing element for tracing the track on the rotary recording medium to reproduce the information signal;
• a cantilever comprising a glass pipe dampingly supported at a proximal end thereof and provided at a free distal end thereof with the reproducing tracing element, and an aluminum pipe extending along and covering the glass pipe;
• means for detecting any deviation of the tracing position of the reproducing tracing element from a proper tracing position relative to the track and generating a tracking control signal in response to the deviation;
• means for supplying the current of the tracking control signal to the aluminum pipe of the cantilever;
• and
• a permanent magnet spaced from and confronting the aluminun pipe along the length thereof for applying to the aluminum pipe a magnetic field in a direction perpendicular to the rotary recording medium.

A reproducing transducer in an apparatus for reproducing an information signal recorded on a track on a rotary recording medium, said reproducing transducer comprising:

• a reproducing tracing element for tracing the track on the rotary recording medium thereby to reproduce the information signal;
• a cantilever consisting of electrically conductive material along its length dampingly supported at a proximal end thereof and provided at a free distal end thereof with the reproducing tracing element through an insulating material interposed therebetween;
• means for detecting any deviation of the tracing position of the reproducing tracing element from a proper tracing position relative to the track and generating a tracking control signal in response to the deviation;
• means for supplying the current of the tracking control signal to the cantilever;
• and
• a permanent magnet spaced from and confronting the cantilever along the length thereof for applying to said electrically conductive material of said cantilever a magnet field in a direction perpendicular to the rotary recording medium.