Tektronix 502A - Page 86

Parts List — Type 502A
Resistors (continued)
Ckt. No.
Tektronix
Part Number
Description
S/N Range
R858
306-156
15 meg 2 W
R859
306-156
15 meg
2 W
R860
311-397
2 meg
Var.
INTENSITY BAL.
R861
304-105
1 meg 1 W
R862
311-397
2 meg Var.
INTENSITY
R863
302-226
22 meg
½W
R864
302-563
56 k
½W
R865
302-226
22 meg
½W
R866
302-105 1 meg
½W
R868
302-105
1 meg
½W
R870
302-154
150 k
½W
R871
302-335 3.3 meg
½W
R872
302-102 1 k ½W
R874
302-683
68 k
½W
R875
302-225 2.2 meg
½W
R876
302-102
1 k
½W
R878
302-473
47 k
½W
R879 311-016
10k
2 W
Var. CAL. AMPL.
R880 304-333
33 k
1 W
R883
302-101
100  1 W
R884 309-237
204 
1 W
Prec.
1%
R885 310-066
18 k
1 W
Prec.
1%
R886
309-030
1.8 k
½W
Prec.
1%
R887
309-235
9k
½W
Prec.
1%
R888 309-236 900  ½W
Prec.
1%
R889 309-238 90 
½W
Prec.
1%
R890 309-096
10 
½W
Prec.
1%
R899
*308-090
.25 
1 W
WW
Switches
Unwired Wired
SW10
SW17 †
SW20
SW126
SW160
260-233 *262-177
260-235 *262-178
260-447
260-501
260-529 *262-556
Rotary
Rotary
Slide
Lever
Rotary
TRIGGER SELECTOR
TRIGGERING LEVEL
TRIGGER SELECTOR (Slope)
MODE
TIME/CM
SW160V †
311-108
SW331
260-236 *262-172
Rotary
HORIZONTAL DISPLAY
SW403A ††
260-238 *262-179
Rotary
INPUT SELECTOR (Upper)
SW403B ††
260-238 *262-190
Rotary
INPUT SELECTOR (Lower)
SW407 ††
260-525 *262-555
Rotary
SENSITIVITY
SW478 ††
260-247
Push-button
FINDER (Trace)
SW489
260-237 *262-180
Rotary
HORIZ. DEFL. PLATE SELECTOR
SW601 †††
311-057 POWER OFF
SW870
260-234 *262-176
Rotary
AMPLITUDE CALIBRATOR
TK601 Use
260-208
Thermal Cutout 133° F
± 5° F
† Ganged with R17. Furnished as a unit.
† Concentric with R160V. Furnished as a unit.
†† There are two parts of this description in your instrument; one in each of the Vertical Amplifiers,
†† Ganged with R601. Furnished as a unit.
6-30
@3