EAI TR-20 Operator's Reference Manual page 28

e
in
= Ke
in
Figure
6.
An Atterl1lator
+IOV
+IOV---O
r-- ,
I
I
I
::~ ~
t - - - - - + - - - J
!
I I
L--=----i
ATTEN.42.188
L---
J
POT BUS
TO SWITCHES OF
~.~--------~--------------------------~----~~~
TO READOUT
ALL ATTENUATOR CIRCUITS
GROUPS
(0) ATTENUATORS, SIMPLIFIED SCHEMATIC
x
RI
~-'-- RT Ein
=
KE
in
R,
T
T
HI
RT
K (X-Y) +Y
L
RI
LO
T
Y
X
K
Ein
- - 0 -
KEin
K(X-Y)+Y
Y
(b)
GROUNDED
(C)
UNGROUNDED
Figure
7.
Sche-matics and Symbols for Attenuators
18