Operating Characteristics in Photoelectric Tubes

This paper gives a discussion of the characteristics of photoelectric tubes which are important in the engineering applications of such tubes. Definitions of photometric terms are given together with the introduction of a few special terms essential to photoelectric tube work. Curves are given showing both the static and dynamic characteristics of a typical tube. A simple mathematical analysis is given of the elementary photoelectric tube circiuit. An appendix of photometric formula. and conversion factors is provided.