Abstract :
Following an Introduction reviewing the essential requirements of a high-speed cathode-ray oscillograph for the recording of short-time transients, consideration is devoted to the design and construction of an instrument of this description adapted to both internal electron-blackening and to external light-blackening photography. The problems discussed include the construction of a cold-cathode discharge tube, the disposition of deflection plates, the operation of the time-sweep and beam-trap circuits, and the methods of synchronizing these with the transient under examination; this last leading to questions of voltage-division and delay necessary for synchronization.
