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APFENDIX 2
SIMPIE C]RCUITS USING AMFT,IFIER AND POTE\II]OMETER
C]RCUIT DESCRIFTION
C]RCU]T
COMfiIIER SY}ßOL
1. GROÜNDED POTE\]'IIO},TETER
*l- *
l-I
k--p'TErrrr
ror,ßTER
-:-
SETTTNG
2.
UNGROUNDED
POTENT]OMETER
k (e1-e2)
u1
,Jtt
\-"r*u
("r-"2
I T
' ! o
3.
TNVEnTER
lT. MULTIPT,ICATION
BY -10
-10e
5.
MULT]PI,ICATION BY .K
f o r 1 ( k < 1 0
(for
k(1, use circuit
' l
f a a Ä i n c
n i - ^ " ; +
2 \
!
r e v q r r r S
v L L v q L v
) J
-ke
k
1 0 10
6.
MULTIPLICA.TION BY
-2e
-2e
7. I{I]LTIFT,ICATION'Y+
e 1
e 2
"l_
e 2
-
- L U )
-
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