Abstract:
A plurality of electromagnetic transducers for recording in magnetic medium supported on a moveable carrier are arranged in a record head in alignment with a magnetic sensor which is responsive to a clock track in said medium. An effect generated by the sensor in response to a sensed mark in the clock track simultaneously orders (1) transmission of intelligence to writing amplifiers, (2) discharge of the amplifiers to said transducers for recording said intelligence and (3) cycling of a timer. Upon completion of its cycle, the timer orders (1) drive to the carrier terminated for reinitiation in response to availability of intelligence for recordal and (2) resetting of a data register for receiving new intelligence.