TICK UP 



DRIVE. 



AMPLIFIER 



FILTER 



Of 



S3 

 i 



o 



k. °> 

 a ' 



a. 



a o 



o T 



C o 





Oscillator Circuit 



i i 



2.0 30 SO 80 100 



FREQUENCY - KC 



zoo 



Response of Filter 



Fig. 5- Basic oscillator system. 



Fig. 6. Experimental double resonator. 



ko 



