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Tektronix 502A - Page 83

Tektronix 502A
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Parts
List
Type
502A
Resistors
(continued)
Ckt.
No.
Tektronix
Part
Number
Description
S/N
Range
R428
309-432
82.5
k
½W
Prec.
1%
R429
311-017
10
k
.1
W
Var.
VAR.
DC
BAL.
R433
311-243
50
k
Var.
DC
BAL.
R434
301-272
2.7
k
½W
5%
R435
311-125
50
k
.2 W
Var.
.2
MV/CM
DIFF.
BAL.
R440
*312-583
††
1
meg
½W
Prec.
1%
R441
302-102
1
k
½W
R443
301
-564
560
k
½W
5%
R444
309-049
150
k
½W
Prec.
1%
R447
301-273
27
k
½W
5%
R448
301-472
4.7
k
½W
5%
R450
306-473
47
k
2 W
R451
302-102
1
k
½W
R452
309-414
5
meg
½W
Prec.
1%
R453
306-153
15k
2
W
R454
301-303
30
k
½W
5%
R455
311-067
5
k
.2 W
Var.
FEEDBACK
BAL.
R456
311-084
1
k
.2 W
Var.
.2
MV/CM
GAIN
R457
301-223
22
k
½W
5%
R458
301-223
22
k
½W
5%
R461
302-102
1
k
½W
R462
309-414
5
meg
½W
Prec.
1%
R464
301-303
30
k
½W
5%
R465
Use
301-565
5.6
meg
½W
5%
R466
311-028
2
x
100
k
2 W
Var.
POSITION
R467
Use
301-565
5.6
meg
½W
5%
R468
302-103
10
k
½W
R469
302-103
10
k
½W
R470
309-195
90
k
½W
Prec.
1%
R471
302-102
1
k
½W
R472
304-223
22
k
1
W
R473
302-102
1
k
½W
R474
305-273
27
k
2
W
5%
R475
Use
306-333
33
k
2
W
R476
306-273
27
k
2
W
R478
302-472
4.7
k
½W
R479
302-472
4.7
k
½W
R480
309-195
90
k
½W
Prec.
1%
R481
302-102
1
k
½W
R482
304-223
22
k
1
W
R483
302-102
1
k
½W
R484
305-273
27
k
2
W
5%
R48
5†
Use
306-333
33
k
2
W
R486
306-273
27
k
2
W
R487
311-399
7k
Var.
VARIABLE
(Sensitivity)
There
are
two
parts
of
this
description
in
your
instrument;
one
in
each
of
the
Vertical
Amplifiers,
††
R41
0
and
R440
are
a
matched
pair.
Furnished
as
a
unit.
6-27

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