BELL SYSTEM TECHNICAL JOURNAL 



.^A/vWV 



^v 



B 



-lllll 



^ + 



Fig. 6 — Oscillator having automatic output control. 



Fig. 7 — Block diagram of automatic output control oscillator. 



TEST 

 GENERATOR 



FILTER 



TEST 

 DETECTOR 



AMPLIFIER 



GAIN CONTROL 



_rv 



Fig. 8 — Test for modulation stability of automatic output control oscillator. 



