80 



BELL SYSTEM TECHNICAL JOURNAL 



Reversed Feed-Back Oscillator 



Figures 11, 12, and 13 show conventional drawings of the type of 

 oscillator circuit known as a "reversed feed-back" or sometimes as a 

 "tuned output" type of oscillator, with the application of stabilizing 



1-2 



C3 



Cs: 



^m^ 



^ — M = K^Li L2 ■ 

 Fig. 11 — Reversed feed-back oscillator, plate stabilization. 



=i=C4 



L2 



C3 



^m^ 



M = kYLi L2 



Fig, 12 — Reversed feed-back oscillator, grid stabilization. 



:C4 



L2 



-M = K'\/L| L2 

 ick oscillator 



Fig. 13 — -Reversed feed-back oscillator, plate and grid stabilization. 



1 (L,Cz 



C, = 





k^ \ ^ LiC, ) ^ 



