Tektronix DC 501 Instruction Manual page 25

Electrical Parts
List—
DC
501
COUNTERS AND DISPLAY
Ckt
No.
Grid
Loc
Tektronix
Serial/Model
Part
No.
Eff
No.
Disc
Description
ASSEMBLIES
A1
670-2102-00
MAIN Circuit Board Assembly (part of)
A2
670-2103-00
DISPLAY Circuit Board Assembly (part of)
CAPACITORS
C260
LI
283-0111-00
0.1 pF, Cer, 50
V
C265
LI
283-0111-00 0.1 pF, Cer, 50
V
C302
E6
290-0529-00 47 pF,
Elect., 20 V, 20%
C305
D6
283-0060-00
100 pF, Cer, 200
V,
5%
C322 B5
290-0531-00
100 pF, Elect., 10 V, 20%
C325 B6
283-0150-00
650 pF, Cer, 200
V,
5%
C334
H6
283-0000-00 0,001 pF, Cer, 500 V,
+100%-0%
C335 H6
283-0177-00
1 pF,
Cer, 25 V,
+80%-20%
C340
E6
290-0529-00 47 pF,
Elect., 20
V,
20%
DIODES
CR241
11
152-0141-02
Silicon, replaceable
by 1N4152
CR242 P6
150-1001-00
Light emitting diode
CR244 12
152-0141-02
Silicon, replaceable by 1N4152
CR280
N5
150-1002-00 Numerical display diode
CR281 05
150-1002-00
Nmerlcal
display diode
CR282 05
150-1002-00
Numerical display diode
CR283 05
150-1002-00
Numerical display diode
CR284
P5
150-1002-00
Numerical display diode
CR285
P5
150-1002-00
Numerical display diode
CR286 Q5
150-1002-00 Niimerlcal
display diode
CR290 P6
150-1001-00
Light emitting diode
CR292
06
150-1001-00
Light emitting diode
TRANSISTORS
Q242
J1
151-0341-00
Silicon, NPN, replaceable
by 2N3565
Q280
F2
151-0301-00
Silicon, PNP, replaceable by 2N2907
Q281 F2
151-0301-00
Silicon, PNP, replaceable by 2N2907
Q282 G2
151-0301-00
Silicon, PNP, replaceable by 2N3907
Q283 G2
151-0301-00
Silicon, PNP, replaceable by 2N3907
Q284
G2 151-0301-00
Silicon, PNP, replaceable by 2N3907
Q285 G2
151-0301-00
Silicon, PNP, replaceable by 2N3907
Q286 G2
151-0301-00
Silicon, PNP, replaceable by 2N3907
Q330 D6
151-0342-00
Silicon, PNP, replaceable by 2N4249
Q340 B4
151-0342-00
Silicon, PNP, replaceable by 2N4249
RESISTORS
R242
12
315-0562-00 5,6 kn, 1/4 W, 5%
R244
12
315-0301-00 300
a,
1/4 W, 5%
R260
M3
315-0562-00 5.6
kfl,
1/4 W, 5%
R261
M2
315-0242-00 2.4
kfi,
1/4 W, 5%
R264
M2 315-0562-00
5.6
kfl,
1/4 W, 5%
R265
M2
315-0242-00 2.4
kfl,
1/4 W, 5%
R267
M2
315-0102-00
1
kfi,
1/4 W, 5%
R271 H2
315-0750-00
75
fi,
1/4 W, 5%
R272 H2
315-0750-00 75 n, 1/4 W, 5%
R273 H2
315-0750-00
75 Q,
1/4 W, 5%
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