0.11 uf 
0.1 uf 
Ons OF ut 
5K 1.0 uf GY 
Level 
_26v Adjuster To 5KQ 
1K Pressure 
Frequency Transducer 
Adjuster 
FIG. 7. 200-CPS OSCILLATOR AND GROUNDED COLLECTOR STAGE 
0.1 uf 
‘| 
x 
200vSignal 10K 
from Depth x 
Potentiometer ie 
v 
V 4 
= 50 uf 
bo] 
13.5 ke 
Oscillator 
-26v 
FIG. 8. 200-CPS FM MODULATOR AMPLIFIER, -20 DB 
10 uf 16K 
Data Signal 200 
from 
Low - Pass 
Filter 
© 
13.5 ke 
FM - Modulated 
Signal from 
High - Pass Filter 
-26v To 
FIG. 9. DATA- AND DEPTH-SIGNAL AMPLIFIER, -14 DB 
14 
