Elenco Electronics EP-130 - Pushing & Pulling Oscillator

-85
-
In this experiment you will make a push
/
pull, square
wave oscillator. This oscillator is known a push/pull
b
ecause
i
t uses two trans
i
stors t
h
at are connecte
d
to eac
h
ot
h
er.
Th
ey ta
k
e turns maneuver
i
ng so t
h
a
t
while one transistor is
“
pushin
g
,” the other is
“
pullin
g
.
This type of oscillator is called a square wave
oscillator because the electrical wave
f
orm o
f
th
e
si
gna
l
h
as a square s
h
ape.
Slide the switch to position A to turn on the powe
r
a
f
ter wirin
g
the circuit. We will be usin
g
square wav
e
s
i
g
nals in later projects there
f
ore, note the soun
d
f
rom the speaker.
No
t
es
:
EXPERIMENT #67: PUSHING & PULLING OSCILLATO
R
Wiring
S
equence:

1
-2
9

2
-
30

3
-
83
-
101
-
41

4-1
3
1

5
-
8
1-1
0
2-44

40
-
82

45-42-119

43
-
84

1
20-132
S
chematic