The transient visualizer

J. R. Craighead: This device serves the purpose of repeating a transient so that it can be properly studied by the eye or where there is any question of suitable illumination can be better photographed because of repetition. This should lend itself to the use of higher velocities and consequently larger and more easily readible records on the oscillograph than have been obtained. The possible limit of speed on the oscillograph in the direction of the motion of the film is chiefly the photographic effeet. This device should enable the photographic effect to be much improved, provided the nature of the switch is such that duplication can be assured in the transient at excessively high speeds. Can Mr. Palmer furnish any statement regarding the practicable limits?