pelle 
SING- AROUND 
CIRCUIT NO. | 
EJ +2 
CIRCUIT 
X5 
FILTER NO! 
AMPLIFIER 
AND SCHMITT 
TRIGGER 
XS 
FILTER NO.2 
AMPLIFIER 
LP FILTER 
fy 
BALANCED 
MODULATOR 
FIG. | 
192 
AMPLIFIER 
AND SCHMITT 
TRIGGER 
X5 
FILTER NO. 2 
AMPLIFIER 
HP FILTER 
