REFLEX OSCILLATORS 



509 



or contract without change in form as the repeller voltage was varied. In 

 Figs. 30 and 31a family of susceptance curves are shown corresponding 

 respectively to cases 1 and 2 above for various values of A0( , assuming 

 that Ml and A0 vary in the same way with the repeller voltage. As the 



(J 

 1 



V5 V4 V3V2V, 



AMPLITUDE OF OSCILLATION, V 



Fig. 30.- — a. Theoretical variation of electronic conductance vs amplitude of oscillation 

 in the case in which two components are in phase opposition. The parameter is the re- 

 peller transit phase. It is assumed that the two contributions have the same variation 

 with this phase. 



h. Susceptance component of electronic admittance as a function of amplitude for the 

 case of phase opposition given in Fig. 30a. The parameter is the repeller phase. The 

 dashed line shows the variation of amplitude with the susceptance shift. 



repeller voltage is varied the amplitude of oscillation will be determined 

 by the conductance Umiting function. In the case of the susceptance we 

 cannot determine the frequency from the intersection of the curve with a 

 load line. The frequency of oscillation will be determined by the drift 

 angle and the amplitude of oscillation. The amplitude variation with 



