REFLEX OSCILLA TORS 



53^ 



may be no additional modes, or such modes may be so far removed in fre- 

 quency from the fundamental frequency of the resonator as to be of little 



CONDUCTANCE , G • 



Fig. 47. — Behavior of the intersection between a circuit admittance line with a loop 

 and the negative of the electronic admittance line of a reflex oscillator as the drift angle is 

 varied (circuit hysteresis). 



REPELLER VOLTAGE ► 



Fig. 48. — Output vs repeller voltage for the conditions obtaining in Fig. 47. 



importance. Nonetheless, the short line will add a frequency-sensitive 

 reactance in shunt with the resonant circuit, and hence will change the char- 

 acteristic admittance of the resonator. 



