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ABSTRACT
This paper describes how the manual adjustments required for compensating for variations of the width and amplitude of the input pulses in an instrument previously described [J. Inst. Telecom. Engrs., 9 (1) (January 1963), 27–36] can be made automatic. The circuit described in this paper has the following properties: (1) It acts as a generator of a pulse that automatically simulates the input in width and amplitude; and (2) the delay of this pulse, with respect to the input, is any desired fixed fraction of the variable pulse recurrence time of the regularly recurrent input. The periodic doubling of the PRF is treated as a special case where the delay is one-half of the recurrence period of the input.