Abstract: A head for recording an information signal in and reproducing the same from a semiconductor recording medium comprises an electrode stylus for recording and reproducing recording information by relatively sliding on the semiconductor recording medium, the recording information being recorded and reproduced through the electrode stylus, and a nonconductive supporting substrate, provided on the side surface of the electrode stylus, for supporting the electrode stylus. A hardness of the electrode stylus is lower than a hardness of a surface medium which constitutes the semiconductor recording medium and is higher than a hardness of the supporting substrate.

Abstract: An electrostatic recorder includes first drive pulse generators each for generating high voltage pulses in response to recording signals and second drive pulse generators so driven in turn as to generate high voltage pulses in response to outputs from a ring counter. Outputs from said first drive pulse generators are respectively supplied to recording electrodes via diodes, and outputs from said second drive pulse generators are respectively supplied to the corresponding electrode groups of said recording electrodes via respective resistors connected to the recording electrodes of the electrode groups in a manner corresponding thereto.