NEGATIVE REPELLER VOLTAGE 



Fig. 108. — The variation of power output with repeller voltage for a pulsed re 'ex 

 oscillator exhibiting hysteresis. 



MAXIMUM POWER 



-^N 



\ 



\ 



Fig. 109. — The elYect of hysteresis on the Ricke diagram of a pulsed retlex oscillator. 

 The hysteresis shown in Fig. 108 can result in failure of a jjulsed oscillator to operate in 

 the lightly shaded jwrtion of the Riekc diagram as well as the heavily shaded portion 

 corresponding to the normal sink. 



618 



