Keithley 153, Instruction Manual, Page: 45 / 51

MODEL
1 5 3 MI CROVOLT- AMMETER REPLACEABLE
PAR I S
S E CT I O N 8 . R E P LA C E A B L E P A RTS
8 - 1 .
REPLACEABLE
PARTS LI ST .
Th e
Re p l a c ea b l e
Pa r t s Li s t d e s c r i b e s
t he
c omp o n e n t s
o f t :: e
Mo d e l
1 53
a
n d i t s
a c c e s s o r i e s .
The Lis t g i v e s
t h e c i r c u i t d e s i g na t i o n ,
t he pa r t
d e s c r i p ­
t i o n , a s u g g e s
t
e d
ma nu f a c t u r e r , t h e
m a nu f a c t u r e r ' s p a r t numb e r a nd t h e
Ke i t h l ey
Pa r t
�U�­
b e r .
The
l a s t
c o l umn
i n d i c a t e s
the
f ig u r e p i c t u r i ng
t h e
p a r t .
8 - 2 . HOW TO
ORD ER PART S .
a .
F o r
p a r
t
s
o rd e r s ,
i n c lud e
t h e i n s t rumen t ' s
mod e l
a n d s e r i a l numb e r ,
t h e
Ke i t h l e y
Pa r t
Numb e r ,
t h e
c
i
r
c
u
i t
d e s i g n a t i o n
a n d a d e s c r i p t i on o f t h e pa r t .
A l l
s t ru c t u r a l p a r : s
a n d t h o s e
pa r t s
c o d e d f o r Ke i t h l e y
ma nu f a c t u r e
( 80 1 6 4 )
mu s t
b e
o rd e r e d t h r o u g h K e i t h l e �
I n s t rumen t s o r
i t s
r e p r e s e n t a t i v e s .
I n
o r d e r i ng a
pa r t n o t
l i s t ed
i n
t h e R e p l a c e a b l e
Pa r t s
Li s t , c
o
m
p
l e
t
e l y d e s c r i b e
the
pa r t ,
i t s f u n c t i o n a n d
i t s
l oc a t i o n .
b .
Ord e r pa r t s
t
h
ro
u
g
h
y ou r n e
a
r e s t
Ke i t h l ey r e p r e s e n t a t iv e
o r
t h e Sa l e s S e r v i c e D e p a r t ­
m
e
n
t
,
Ke i t h l ey
I n s t rumen t s ,
I n c .
amp
CbVa r
CerD
Comp
C ompV
DCb
EA l
EMC
ETB
ETT
f
Fig.
hy
k
M
o r
meg
m
a
mp
e
r
e
C a r b o n Va r i ab l e
Ceram i c ,
Di s c
Comp o s i t i on
Comp o s i t ion
Va r i a b l e
Depos i t ed
Carb on
E l e c t r o ly ti c ,
Aluminum
E l ec. t Tn l � � i r mp� � l r � � p�
E l e c t ro ly t i c ,
tubu lar
E l e c t r o l y t i c , t a n tu lum
f a rad
Figu r e
henry
me ga ( 10 6 ) or
megohms
mi l l i
( 10- 3)
Mfg .
Mt F
Mi l
No .
My
12
PMP
Po ly
p
Re f .
Il
v
Va r
w
WW
WWenc
WWVa r
Manu f a c t u r e r
Me t a l
Fi lm
Mi l i t a ry T y p e Numb e r
My l a r
ohm
Me t a l i z ed pa p e r , pheno l i c
c a s e
Po ly s t y r e n e
pico ( 10 - 1 2)
Re f erence
vo l t
Va r i a b l e
wa t t
Wi r ewound
Wi rewound
enc a p s u l a t e d
W i r ewound Va r iab l e
TABLE 8 .
Abb r evia t i ons
and Symb o l s
3 7