A High Speed Mechanical Recorder

A mechanical recorder is described having a resolving time of 0.8×10−3 sec. It will follow regularly spaced pulses at the rate of 1200 per sec. and should miss no more than one percent of pulses spaced random in time at an average counting rate of 10 per sec. A circuit is also described giving a pulse of short enough duration and at the same time of sufficient magnitude to satisfactorily operate the recorder.