Keithley 153, Instruction Manual, Page: 50 / 51

REPLACEABLE PARTS
MODEL
1 5 3 MI CROVOLT- AMMETER
RESI STORS
( Cont ' d)
Circuit Mfg .
Mfg . Ke i t h l ey Fig .
Desig . Va lue
Ra t i ng
Typ e
Code Part
No .
Par t
No . Re f .
I U 7 4
3 . 0 1
kJ
1 % ,
1 / 2
w
MtF
0 7 7 1 6
CEC
R9 4 - 3 . 0 1K
2 2
R1 7 S
649 :;
1 % ,
1 / 2
w Mt F
0 7 7 1 6
CEC R9 4- 649
2 2
R1 7 6
500 �
10 % ,
5 w WWVa r
7
1
4 5 0 AW
RP34- 500 20
Rl7 7
100 kn
20 % ,
. 2
w
CompV 7 1450 70
RP3 1 - 100K
20
R 1 7 8 80 (
1 / 4 % , 1 / 2
w
Mt F
0 7
7
1
6 C EC - TO
R1 2 7 - 80 . 0
R20 1
47
kr}
10 % ,
1
/
2
w
Comp
0 1 1 2 1
EB
Rl -47 k 2 7
R
2 0 2
4 7
k'/
1 0 % , 1 / 2
w
Comp 0 1 1 2 1
EB RI -4 7 k
2 7
R20 3 1 50 k.1 10 % ,
1/ 2
w
Comp
0 1 1 2 1
E B
Rl - 1 50 K
2 7
R204
1 . 5 l1l
1 % ,
1/2
w
nCb
7 9 7 2 7 CFE- 1 5
RI 2 - I .
5M 2 7
R20 5 1 50 kfl
10 % , 1/ 2
w C
o
m
p 0
1
1 2
1
EB
Rl- 1 50 K
2 7
R
2 0
6 1 . 5 Mn 1 % ,
1 / 2
w
Deb
7 9 7 27
CFE- 1 5 R1 2 - 1 . 5M 2 7
R20 7
47 kn
10 % , 1 / 2
w
Comp 0 1 1 2 1
EB
Rl -
4 7 K
27
R20 a
*7 5
kQ
1 % ,
1/ 2
w Deb
7 9 7 2 7
CFE- I S
R1
2
-
7 S
K
27
R20 9
80
k(1
1 % , 1 / 2
w
Deb
7 9 7 2 7 CFE- 1 5
R1 2- S0K 27
R2 1 0
2 5
kn
1 0 % , 5
w
WWVar
7
1
4 5 0
AW RP34- 25K 27
R30 1
3 k.Q
10 % , lO w
WW 5 6 289
10 E3R0 5T8
R1 l 5 - 3K
2 7
R30 2 30
(1
10 % ,
5 w
WW
5
6
2 8
9
5 7 E R9 6- 30
2 7
R30 3
2 kn
10 % , 10
w
WW 5 6 289
10 E3R0 5T B
R1 l 5 - 2K
2 7
R30 4
1 0 0
kn
1 % ,
1/ 2
w
Deb
7 9 7 2 7
CFE- 1 5
R1 2 - 10 0 K
27
R305
I Mn
10 %,
1/2
w Camp
0 1 121 EB RI- IM 27
R.30 6
1 24
kn
1% , 1/ 2
w
M tF
0 7 7 1 6 CEC
R9 4- 1 2 4K
2 7
1130 7
49. 9
kn
l " L
1 / '
w
Mt f
0 7 7 1 6
CEC
R9 4- 49 . 9K
27
R.30 8 33
n
10% ,
1 / 4 w
C
am p
44 6 5 5 RCX) 7 R7 6 - 3 3
27
VACUUM TUBES
Circuit
Mfg .
Keithley Fig .
Desig . Numb er
Code
Part No .
Re f .
VIO l
1 2AU7
80 1 64 EV- I 2AU7
2 1
VlO 2 7 0
2 5
0
2 7 3
5
EV
-
7
0
2 5
2 1
VI0 3 1 2AT 7
7 3 4 4 5
EV- I 2AT 7
2 1
V20 1
1 2AU7 7 34 4 5 EV- 1 2AU7
19
V30 1
OB2
8 6 684
EV-OB2
20
V30 2 OA2
8 6 684
EV-OA2
20
*Nomina l va lue , factory
s e t .
4 2