Oscillation-Hysteresis in Simple Triocle Generators. 191 



the oscillations for the region between —5 and +1 volts 

 (fig. 7) were exactly the same. In these experiments the 



Fig. 7. 















V- = 100 volts 











^ 3 



\ 500 























400 \ X 

















/Inoi/e 



















Current in 



















M///i-arr,percs 

 2 



/300 V\ 



















Pes/'st ance \ 

















/A- OA/77J. \ 



X^-n 











jfVff 



? y / 



la/ 



200 V 



I \ 











x/ j 



jr i 





\° ^^Sr 











lX 





100 



























Grid Potential in Volts. 



conditions were altered by varying the oscillatory circuit 

 capacity C. The spindle of the air-condenser used for 

 this purpose was turned by means of a long handle, the 



300 



Fig. 8. 



J 









V ao = 100 volts 



\ 













1 





\ 



\ i 





I o— 





I 

 J 





Grid Potent/a/ in Vo/ts 



300 



200 5 



I ioo tf 



end of which could be moved through small distances 

 by means of a micrometer screw. In this way it was 

 shown that the difference in the critical capacities for 



