The "M"-Type Carcinotron Tube

This paper presents theoretical and experimental results concerning the "M Carcinotron." In particular, the influence of space charge has been considered, thereby permitting an explanation for the measured values of starting current, the influence of the coupling impedance on efficiency and the existence of parasitic oscillations. The "rising sun effect" which should be present in these tubes, as it is in the magnetron, has been investigated theoretically and experimentally. The experimental results exhibit a decrease of efficiency in the predicted range of operation.