Table of Contents
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Model
1920
Replaceable
Parts
Circuit
lksig.
L401
L4U2
q401
q402
q403
4404
q405
4406
4407
441)s
R401
R4O2
R403
R404
R405
R406
R407
R408
R409
K410
R411
Description
lUU,,H
Choke
lOU$l
Choke
Transistor,
PNP
N-Channel
JFET
(selected)
N-Channel
JFET
N-Channel
JFET
(selected)
N-Channel
JFET
N-Channel
JFET
(selected)
N-Channel
JFET
Uual
N-Channel
JFET
lk,
1%. 1/2W,
rntf
lk,
I%,
i/ZW,
lntf
2M,
.5x,
lW,
mtf
Pot,
lUUl1,
lor,
3/4w
Pot,
lk,
lo'b,
J/4W
Pot,
1Uk.
lOY,
3/4W
Pot,
lk,
lo%,
3/4W
2.12k,
.Yb,
1/8W,
intf
19.6k,
.a,
l/IIW,
mtf
217k,
.5x,
1/8W,
mtf
Pot,
lOk,
lo'b,
3/4W
TABLE 5-2
laceable
Parts
List
(cont.)
thematic
ocati
on
A3
A3
nz
lx
E2
u2
E2
II3
E3
c4
84
04
B4
CZ
C2
C3
F5
c2
CZ
C3
05
17/w
l&l/U3
34lE3
35/U2
36102
37/w
38/U2
39/w
4U/U2
41/E2
57/F2
58!FZ
5Y/E2
(IU/UZ
61/02
62/W
63/1)2
64102
65lU2
a/u2
67lE2
I
PC-Board
,tem No./Location
Mfr.
Code
NYT
NYT
A-U
K-I
INT
K-l
INT
K-l
INT
SIL
ULE
ULE
ULE
BRN
BRN
BRN
BHN
ULE
ULE
OLE
URN
Mfr.
Desig.
swu-100
swu-1uu
AU-820
lTE43Y2
lTE4392
ITE4392
E411
MFF-l/2
MFF-l/2
MFF-l/2-31
36UU,
IiPlUU
3600,
GPlOUU
36OO,
GPlOUUU
3600,
tiPlOO
MFF
l/U
MFF-l/8
MFF-l/8
3600,
GPlOUOO
T
Keithley
Part
No.
CH-14
CM-14
Tti-84
TG-128
Tti-77
Tti-128
Tti-77
FIG-12X
TG-77
Tti-118
K-94-lk
K-Y4-lk
K-303-21.1
IRP-XY-100
KP-XY-lk
RP-&l9-1Ok
KP-89-lk
R-246-2.12k
R-246-19.6k
K-246-217k
RP-89-1Ok
5-5
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