Analytical Treatment for Establishing Load-Cycle Ratings of Ignitrons

The above theory suggests a method of defining the intermittent rating of an ignitron tube through the use of a so-called time constant. This method results in a smooth transition from intermittent to continuous duty ratings. It is possible to adapt the time-constant concept to the calculation of permissible ratings for more complicated duty cycles than are considered in the present paper. The authors hope to be able, in the future, to check the actual performance of tubes against the above theory, especially at values approaching the continuous current rating.