© D U T Y /
P U L L INV (Symmetry Adjustment/Polarity
S e l e c t o r )
Knob
Controls symmetry of output signal.
Clockwise rotation varies the duty ratio from 1 : 1 to 4 0 : 1 .
This adjustment makes pulse
w a v e
of square
wave,
ramp
w a v e
or
s a w
- t o o t h
w a v e
of triangle
wave,
and asymmetric sine wave of sine wave.
Pulling this knob inverts the phase polarity.
Note : Note
t h a t
controlling this knob
changes frequency.
N o r m a l
Inverted
Normal
Inverted
W a v e f o r m ^ ^ ^ o / ?
Counterclockwise
R o t a t i o n '
;
Counterclockwise
;
Rotation
Clockwise
Rotation
Clockwise
Rotation
Square Wave
Triangi Wave
Sine Wave
T T L Wave
F i g . 2 Effect of I N V E R T
Pushbutton w i t h respect
to
D U T Y Control Knob Setting
10
