Electronic transient visualizers

Cathode-ray oscillographs, a few years ago found only in research laboratories, have become extremely useful tools in the hands of operating engineers, research technicians, and teachers alike; however, the usefulness of cathode-ray oscillographs of the ordinary portable type is limited almost entirely to the observation of sustained periodic phenomena, and is of little use in the study of transients. Methods of extending the field of application of this instrument to include visual observation of circuit and line transients are presented in this paper.