DEVELOPMENT OF IMPROVED GUNS FOR CATHODE RAY TUBES

摘要

This contract, AF33(600)-32608, calls for the development of a tube directly interchangeable with the 10UP14A, but improved with respect to focus quality and change of focus with drive. Line widths much better than those specified for the 10UP14A were attained, but difficulty was encountered in focusing screen currents of the order of one milliampere. The chief causes were focus lens distortion and space charge defocusing.