Development of Cathode-Ray Tubes for Oscillographic Purposes

Some typical electrical characteristics of a cathode-ray tube electron gun are shown and the function of the various gun elements described. Light output, luminescent screen efficiency, space distribution of radiation, as well as decay and spectral distribution characteristics of willemite screens, are shown and the relations of the various factors discussed. The starting and dynamic characteristics of the tube are discussed. Magnetic and electrostatic deflection are discussed with regard to sensitivity, frequency range of application, and impedance of defection plates. In conclusion, a few general precautions in the operation of cathode-ray tubes are given.