Tektronix SC 501 User manual

INSTRUCTION MANUAL
Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon 97005 Serial Number
070-1700-00
First Printing APR 1974

sc 501
TABLE
OF CONTENTS
Page
SECTION 1OPERATING INSTRUCTIONS
Introduction
Description 1-1
Installation and Removal 1-1
Controls &Connectors 1-2
Operating Considerations 1-3
Deflection Factors 1-3
Applying Signals 1-3
Input Coupling 1-3
Sweep Triggering 1-3
Rear Interface 1-4
Table 1-1 Rear Connector Pin Assignments 1-4
Input Assignments 1-4
Output Assignments 1-5
Electrical Characteristics 1-5
Table 1-2 Vertical Deflection System 1-5
Table 1-3 Horizontal Deflection System 1-6
Table 1-4 Triggering 1-6
Table 1-5 Display 1-7
Table 1-6 Environmental 1-7
SECTION 2SERVICING INFORMATION
Introduction 2-1
Contents 2-1
Maintenance 2-1
Cathode-Ray Tube Replacement 2-1
Test Equipment Required 2-2
Diagrams and Parts Lists 2-3
Electrical Parts List 2-4
Calibration Adjustments
Component Locations (reverse side of foldout)
Block Diagram
Input &Vertical Amplifier (Circuit Description)
Sweep &Horizontal Amplifier (Circuit Description)
Z-Axis &CRT Circuit (Circuit Description)
Low Voltage Supplies (Circuit Description)
Mechanical Parts List
Fig. 1Exploded View
Fig. 2Accessories &Repackaging
CHANGE INFORMATION

sc 501

Section 1—SC 501
OPERATING
INSTRUCTIONS
INTRODUCTION
DESCRIPTION
The SC 501 general purpose oscilloscop)e is designed to
operate in aTM 500 Series Power Module. The SC 501 has
abandwidth of at least 5MHz and acalibrated vertical
deflection range from 10 mV/DIV to 1V/DIV, selectable in
decade steps. An uncalibrated VARIABLE control extends
this range to at least 10 volts/division.
Calibrated sweep rates are selected by pushbutton-
controlled logic in decade steps from 1ms/DIV to
lOOms/DIV (millisecond range) and in decade steps from
1ms/DIV to 100 ms/DIV (microsecond range). A
VARIABLE control extends the slowest calibrated sweep
rate to at least 1second/division and aX5 Magnifier
extends the fastest calibrated sweep rate to at least
200 nanoseconds/division.
The triggering circuits allow stable triggering from either
internal or external sources. An AUTO triggering mode and
manual LEVEL/SLOPE selection is combined in asingle
control. With no input signal, automatic triggering provides
abright baseline at all sweep rates.
An internal switch converts the horizontal deflection
system of the SC 501 to an External Horizontal Amplifier
mode of operation.
INSTALLATION AND REMOVAL
The SC 501 is calibrated and ready for use as received.
Referring to Fig. 1-1, install the SC 501 and turn on the
Power Module. Check that the POWER indicator on the
SC 501 front panel comes on.
NOTE
It is recommended that the Power Module be turned
off before inserting or removing the SC 501. Arcing
at the rear connector terminals can reduce connector
life. However, no internal damage will result if the
SC 501 is inserted in alive Power Module.
Refer to CONTROLS &CONNECTORS (Fig. 1-2) for
description of front panel controls, connectors and
indicators.
©1-1

Operating Instructions—SC 501
CONTROLS &CONNECTORS
NOTE
Switch for Y-T or X-Y
operation located inter-
nally; right side, lower cen-
ter of instrument.
Vertical Input Connector.
BNC connector for vertical
amplifier signal input.
VARIABLE Control
Extends each calibrated
vertical deflection factors
over a10:1 range. Maxi-
mum at least 10 V/Dhr.
Trigger Controls.
LEVEUSLOPE selection
from INT or EXT sources.
Pull LEVEL/SLOPE con-
trol out for AUTO trig-
gering mode.
Sweep VARIABLE and X5
Mag.
Variable controls extends
each calibrated sweep rate
over a10:1 range. Slowest
sweep rata 1sac/Oiv. Pull
variable out for X5 magni-
fication of each calibrated
sweep rata. Fastest cali-
brate sweep rate at least
200 ns/Div.
SC 501 OSCILLOSCOPE
p—;
—
!
I
i
t1
1
i
!
"-ImTUISI
JlTY
EXT HORIZ pin jack.
Operates in conjunction
with internal swit^ to al-
low X-Y operation.
Range
EXT TRIG pin jack.
Allows sweep triggering
from external sources.
Tima/Div
button.
Apush-push switch to al-
low selection of amilli-
second or microsecond
range for the calibrated
Time/Oiv settings.
FOCUS Control
Provides adjustment to
obtain awell-defined dis-
play.
INTENSITY Control.
Controls display brightness.
POSITION Control.
Positions display vertically.
Volts/Div Pushbuttons.
Two self-canceling switches
select the calibrated deflec-
tion factors as indicated.
Toreturn to the
10 mV/Oiv setting, depress
the unused pushbutton just
enough to release the other
pushbutton.
POSITION Control.
Positions display horizon-
tally.
Time/Div Pushbuttons.
Two self-canceling switches
select the calibrated sweep
rates as indicated.
Ground Connector.
Chassis return connector
for signals.
Fig. 1-2. CONTROLS &CONNECTORS.

Operating Instructions—SC 501
OPERATING CONSIDERATIONS
DEFLECTION FACTORS
The amount of vertical deflection produced by asignal is
determined by the signal amplitude, the attenuation factor
(if any) of the probe, the setting of the Volts/Div
pushbuttons, and the setting of the associated VARIABLE
control.
Use the largest deflection factor .(1 V/DIV) when first
connecting the SC 501 to an unknown voltage source. If
the deflection is too small to make the measurement,
switch to alower deflection factor.
The deflection factors indicated by the Volts/Div push-
buttons are calibrated only when the VARIABLE control is
rotated fully clockwise.
The range of the VARIABLE control is at least 10:1. It
provides uncalibrated deflection factors covering the full
range between the fixed settings of Volts/Div pushbuttons.
The VARIABLE control extends the maximum deflection
factor to at least 10volts/division.
APPLYING SIGNALS
While most connections to the SC 501 will probably be
made using coaxial cables, probes offer another convenient
method of applying a' signal to the input of the SC 501.
Tektronix probes are shielded to prevent pickup of electro-
static interference. A10X attenuator probe offers ahigh
input impredance and allows the circuit under test to
perform very close to normal operating conditions. The
SC 501 is compatible with probes such as Tektronix P6006
and P6028 Passive Probes. When probe attenuation is not
desired, aTektronix P6011 Passive Probe is recommended.
NOTE
Probe compensation should be checked with aknown
signal (risetime of 700 nanoseconds or less) before
using the SC 501. Input time constant is normalized
for each attenuator step.
Unshielded test leads can sometimes be used to connect a
signal source to the SC 501, particularly when ahigh-level,
low-frequency signal is monitored at alow impedance
point. However, when any of these factors are missing, it
becomes increasingly important to use shielded cables. In
all cases, the signal transporting leads should be kept as
short as practical. Be certain that acommon ground
connection is established between the device under test and
the SC 501 .The shield of acoaxial cable or ground strap of
asignal probe provides an adequate common ground
connection.
INPUT COUPLING
The AC COUPL pushbutton switch allows achoice of
input coupling. The type of display desired determines the
method of coupling used.
Dc coupling (button out) can be used for most applica-
tions. However, if the dc compronent of the applied signal is
much larger than the ac component, ac coupling (button in)
will probably provide abetter display. Dc coupling should
be used to display an ac signal below ebout 3hertz.
In the ac coupling position, the dc component is blocked
by aseries capacitor in the input circuit. The low-frequency
response in the ac position is about 3hertz (—3 dB point);
therefore, some low-frequency attenuation and phase shift
can be expected near this frequency limit. Distortion will
also appear in square waves that have low-frequency
components.
SWEEP TRIGGERING
When the source switch is in the INT position, the sweep
is triggered by asample of the signal applied to the VERT
INPUT connector. The display is stable for either Normal
or AUTO triggering modes as long as the signal frequency is
above 10 Hz. Below 10 Hz, it may be desirable to use
Normal mode triggering (LEVEL/SLOPE control pushed
in). The AUTO triggering mode (LEVEL/SLOPE control
pulled out) reduces operator adjustments and provides a
bright baseline in the absence of an input signal.
When the source switch is in the EXT position, the
sweep is triggered by the signal applied to the EXT TRIG
pin jack. The signal applied to the EXT TRIG pin jack must
be time-related to the signal applied to the VERT INPUT
connector in order to prevent drift in the display.

Operating Instructions—SC 501
REAR INTERFACE
TABLE 1-1
REAR CONNECTOR PIN ASSIGNMENTS
(REAR VIEW)
Pin No. Left (B) Right (A)
28 Unassigned Unassigned
27 *-t- Gate Out ‘EXT TRIG signal
26 Unassigned ‘EXT TRIG common
23-25 Unassigned Unassigned
22 Unassigned Unassigned
18-21 Unassigned Unassigned
17 ‘VERT INPUT signal ‘EXT HORIZ common
16 ‘VERT INPUT common ‘EXT HORIZ signal
14 Unassigned Unassigned
15 Unassigned Ramp Out
13 Not used Not used
12 +33.5 VFiltered dc +33.5 VFiltered dc
11 Collector PNP Series-Pass Transistor Base PNP Series-Pass Transistor
10 Not used Emitter PNP Series-Pass Transistor
9±33.5 Vdc common ±33.5 Vdc common
8—33.5 VFiltered dc —33.5 VFiltered dc
7Collector NPN Series-Pass Transistor Emitter NPN Series-Pass Transistor
-6 No Connection Base NPN Series-Pass Transistor
1-5 Not used Not used
*Instrument not supplied with these connections. See INPUT and OUTPUT ASSIGNMENT.
NOTE
Refer to Power Module instruction manual for information concerning pins labeled Not used.
INPUT ASSIGNMENTS
The VERT INPUT signal, EXT TRIG signal and EXT
HORIZ signal can be applied through the rear interface
connectors if the SC 501 is modified as follows:
A. VERT INPUT signal.
1. Unsolder the 200 ohm resistor attached to the
VERT INPUT connector. Connect tl\e center conductor
of acoaxial cable to the 200 ohm resistor. Connect the
coaxial cable shield to ground.
2. Connect the other end of the coaxial cable: center
conductor to pin 17B and shield to pin 16B (common).
NOTE
Parallel operation may be obtained if another
200 ohm resistor is connected in series with the
center conductor of acoaxial cable to the junction of
R100 and the main circuit board. The addition of any
coaxial cable to input circuits affects the input
impedance.
B. EXT TRIG signal.
1.Connect the center conductor of acoaxial cable to
the EXT TRIG pin jack. Ground the coaxial cable shield.
2. Connect the other end of the coaxial cable: center
conductor to pin 27A and shield to pin 26A (common).
1-4 REV. B, AUG. 1974

Operating Instructions—SC 501
3. Set the trigger source switch to the EXT position
to trigger the sweep from pin 27A.
C. EXT HORIZ signal.
1.Connect the center conductor of acoaxial cable to
the EXT HORIZ pin jack. Ground the coaxial cable
shield.
2. Connect the other end of the coaxial cable: center
conductor to pin 16A and shield to pin 17A (common).
OUTPUT ASSIGNMENTS
A+Gate Out signal can be routed to the rear interface
connector via the center conductor of acoaxial cable to pin
27B. Shield ground may be any convenient location. A
Ramp Out Signal is factory wired to pin 15A .Other pins
(unassigned) are available at the rear interface connector for
routing signals to and from the SC 501 for specialized
applications. One or more compartments of amulti-plug-in
Power Module can be wired with barriers installed to
provide specific functions between compartments. See
Power Module instruction manual for additional
information.
ELECTRICAL CHARACTERISTICS
PERFORMANCE CONDITIONS
The electrical characteristics are valid only if the SC 501
has been calibrated at an ambient temperature between
-h 20°C and -t-30°C and is operating at an ambient
temperature between 0°C and -h 50°C unless otherwise
noted.
TABLE 1-2
VERTICAL DEFLECTION SYSTEM CHARACTERISTICS
Characteristics Performance Requirements Supplemental Information
Bandwidth Dc to at least 5MHz.
Deflection Factors 10 mV/div, 100 mV/div, and 1V/div.
Accuracy Within 3% of indicated deflection. VARIABLE in XI (fully cw) position:
gain correctly set at 10 mV/div.
Uncalibrated (Variable) Range Continuously variable between steps.
Extends deflection factor to amaximum
of 10 V/div.
10:1 range for all attenuator settings.
Low Frequency Linearity 0.1 division or less compression or
expansion of atwo division (at center
screen) signal when p>ositioned to the top
and bottom of the graticule area.
Input Coupling Ac or dc. Lower bandwidth limit when ac-coupled
is approximately 3Hz.
Input Impedance 1MJ7 paralleled by 47 pF. Input time constant is normalized for
each attenuator step.
Maximum Safe Input Voltage 350 V(dc +peak ac).
REV. B, AUG. 1974 1-5

operating Instructions—SC 501
TABLE 1-3
HORIZONTAL DEFLECTION SYSTEM CHARACTERISTICS
Characteristics Performance Requirements Supplemental Information
Time Base
Calibrated Sweep Rates 1ms/div, 10 ms/div, 100 ms/div, 1ps/div,
10 ps/div, 100 /is/div.
Uncalibrated (Variable) Range Extends slowest calibrated rate to at least
1sec/div.
10:1 range for all calibrated rates.
Zero to 10 Vramp output available at
rear interface connector for all sweep
rates (excluding X5 magnification).
X5 Magnifier (fixed) Extends fastest calibrated sweep rate to
at least 200 ns/div.
Accuracy (Over 8div) Within 5% for all sweep rates. Disregard first 0.5 ps of total sweep
length.
Linearity (any two division
fxartion within center
eight divisions)
Within 5%. Disregard first 0.5 /is of total sweep
length.
External Horizontal Amplifier Internal switch must be set to X-Y
position.
Bandwidth Dcto 100 kHz. Internally calibrated for 100 mV/div.
Input lmF>edance Approximately 100 kJ2 paralleled by
25 pF.
Maximum Input Voltage ±3 V.
TABLE 1-4
TRIGGERING CHARACTERISTICS
Characteristics Performance Requirements Supplemental Information
Normal Trigger Sensitivity (Trigger
LEVEL/SLOPE control pushed in)
Internal: Dc-coupled 0.4 major division of deflection at dc
increasing to 1.0 major division of
deflection at 5MHz.
External: Dc-coupled 1Vminimum to 5Vmaximum from dc
to 5MHz.
Input Impedance 22 Kfi paralleled by approximately
150 pF.
AUTO triggering (Trigger LEVEL/
SLOPE control pulled to out
position)
Sweep free-runs in absence of trigger
signal or for trigger repetition rates below
10 Hz.

Operating Instructions—SC 501
TABLE 1-5
DISPLAY CHARACTERISTICS
Characteristics Performance Requirements Supplemental Information
Graticule
Type Internal black line, nonilluminated.
Area Six divisions vertical by 10 divisions
horizontal. Each division equals
0.203 inch.
Phosphor P31 standard.
TABLE 1-6
ENVIRONMENTAL CHARACTERISTICS
Characteristics Performance Requirements Supplemental Information
Temperature
Operating 0°C to -t50°C.
Storage -40°C to +75‘’C.
Altitude
Operating To 15,000 feet.
Storage To 50,000 feet.
Vibration
Operating and Non-operating With the instrument complete and
operating, vibration frequency swept
from 10 to 50 to 10 Hz at 1minute per
sweep. Vibrate 15 minutes in each of the
three major axes at 0.015 inch total
displacement. Hold 3 minutes at any
major resonance, or in none, at 50 Hz.
Tot^l time, 54 minutes.
Shock
Operating and Non-operating 30 g's, 1/2 sine, 11ms duration, 2 shocks
in each direction along 3major axes, for a
total of 12 shocks.
1-7

Section 2—SC 501
SERVICING
INFORMATION
INTRODUCTION
CONTENTS
This section of the manual contains information neces-
sary to service the SC 501
.
Ablock diagram and schematic drawings are provided as
an aid in understanding the theory of operation of the
SC 501. Acircuit description for each schematic drawing is
included on the associated foldout page.
Adjustment and calibration procedures are provided on a
foldout page with supporting illustrations that show inter-
nal adjustment locations and measurement check points.
Also included is the electrical parts list and acomponent
location grid to facilitate the location of the components
on the etched circuit boards.
Mechanical parts are listed in the rear of this section
with an exploded view of the instrument. Alist of standard
accessories and acarton assembly drawing are on the back
of the exploded view foldout page.
MAINTENANCE
General system maintenance procedures are provided in
the Power Module instruction manal, i.e., preventive main-
tenance, troubleshooting aids, parts removal and replace-
ment procedures, parts ordering information, etc.
Adjustment of the SC 501 may be required after arepair
has been made, or after long time intervals in which normal
aging of components may affect instrument accuracy.
Before complete calibration, thoroughly clean and in-
sfject this instrument as outlined in the service section of
the Power Module instruction manual.
Refer to Fig. 2-1 as an aid in removing or replacing the
cathode-ray tube.
CRT base socket
NOTE
It is not necessary to remove the
crt shield or front panel.
CRT shield
Use care when handling acrt. Protective clothing and safety glasses should be worn. Avoid striking it
on any object whidi might cause it to crack or implode. When storing acrt, place it in aprotective car-
ton or set it face down in aprotected location on asmooth surface with asoft mat under the faceplate
to protect it from scratches.
Fig. 2-1. Replacing the cathode-ray tube. Replacing the crt will require partial instrument readjostments. Refer to CALIBRATION ADJUST-
MENTS foldout page.
2-1

Servicing Information—SC 501
TEST EQUIPMENT REQUIRED
The following test equipment and accessories, or its
equivalent, is required for complete calibration of the
SC 501. Specifications given for the test equipment are the
minimum necessary for accurate calibration or measure-
ment. All test equipment is assumed to be correctly
calibrated and operating with specifications.
If other test equipment is substituted, control settings or
calibration setup may need to be altered to meet the
requirements of the equipment used. Detailed operating
instructions for the test equipment used are not given in the
adjustment or calibration procedures. Refer to the instruc-
tion manual for the test equipment if more information is
desired.
1. TM 500 Series Power Module
2. Plug-in Extender. Tektronix Part No. 067-0645-01.
3. Variable Autotransformer. Must be capable of
supplying sufficient wattage over arange of 90 to 132 Vor
180 to 264 V. Autotransformer must have an ac voltmeter
to indicate output voltage.
4. Dc Voltmeter: accuracy within 0.1% and ameasure-
ment range from —1000 Vto -t-100 V. For example, a
DM 501 Digital Multimeter, or any high impjedance dc
voltmeter meeting the above requirements.
5. Amplitude Calibrator: accuracy within 0.25%. Out-
put amplitudes from 50 mV to 10 V. Square-wave repeti-
tion rate about 1kHz. For example, Tektronix Calibration
Generator PG 506 or Calibration Fixture 067-0502-01.
6. Test Oscilloscop>e. Minimum bandpass of 1MHz and
deflection factor of at least 10 mV/div with a10X probe.
For example, Tektronix 5103/D10 oscilloscope with
5B10N Time Base/Amplifier, 5A23N Amplifier plug-in and
aP6006 probe, or any oscilloscope that meets the above
requirements.
7. Leveled Sine-Wave Generator. Tektronix SG 503 or
191 Constant-Amplitude Signal Generator.
8. Time-Mark Generator. Tektronix TG 501 or 2901.
9. Input Ndrmalizer 47 pF (BNC). Tektronix Calibra-
tion Fixture 067-0541-00.
10. 50-ohm termination with BNC connectors.
Tektronix Part No. 01 1-0049-01.
11. Coaxial cables. Impedance 50 ohms, RG 58/U,
maximum length 42 inches, BNC connectors. Tektronix
Part No. 012-0057-01.
12. Adapter, BNC to pin jack. Tektronix Part No.
175-1 178-00, or equivalent.
13. Screwdriver, three-inch shaft, 3/32 bit. Xcelite
R-3323.
14. Low-capacitance screwdriver, one and one-half inch
shaft. Tektronix Part No. 003-0000-00.

Servicing Information— SC 501
DIAGRAMS AND PARTS LISTS
SYMBOLS AND REFERENCE DESIGNATORS
Electrical components shown on the diagrams are in the following units unless noted otherwise:
Capacitors =Values one or greater are in picofarads (pF).
Values less than one are in microfarads (pF).
Resistors =Ohms
Symbols used on the diagrams are based on ANSI Y32.2 —1970.
Logic symbology is based on MIL-STD-806B in terms of positive logic. Logic symbols depict the logic function performed
and may differ from the manufacturer's data.
The following special symbols are used on the diagrams:
External Screwdriver adjustment.
External control or connector.
Clockwise control rotation in direction of arrow.
Refer to diagram number indicated in diamond.
Refer to waveform number indicated in hexagon.
Connection soldered to circuit board.
Connection made to circuit board with interconnecting pin.
Blue tint encloses components located on circuit board.
P/0 circuit board

ELECTRICAL REPLACEABLE PARTS LIST
PARTS ORDERING INFORMATION
Replacement parts are available from or through your local Tektronix, Inc. Field
Office or representative.
Char>ges to Tektronix instruments are sometimes made to accommodate improved
components as they become available, and to give you the benefit of the latest circuit
improvements developed in our engineering department. It is therefore important, when
ordering parts, to include the following information in your order: Part number,
instrument type or number, serial number, and modification number if applicable.
If af)art you have ordered has been replaced with anew or improved part, your
local Tektronix, Inc. Field Office or representative will contact you concerning any
chartge in part number.
Change information, if any, is located at the rear of this manual.
SPECIAL NOTES AND SYMBOLS
XOOO Part first added at this serial number
OOX Part removed after this serial number
ITEM NAME
In the Parts List, an Item Name is separated from the description by acolon (:).
Because of space limitations, an Item Name may sometimes appear as incomplete. For
further Item Name identification, the U.S. Federal Cataloging Handbook H6-1 can be
utilized where possible.
ABBREVIATIONS
ACTR ACTUATOR PLSTC PLASTIC
ASSY ASSEMBLY QTZ QUARTZ
CAP CAPACITOR, RECP RECEPTACLE
CER CERAMIC RES RESISTOR
CKT CIRCUIT RF RADIO FREQUENCY
COMP COMPOSITION SEL SELECTED
CONN CONNECTOR SEMICOND SEMICONDUCTOR
ELCTLT ELECTROLYTIC SENS SENSITIVE
ELEC ELECTRICAL SEP SEPARATELY
FXD FIXED VAR VARIABLE
INCAND INCANDESCENT WW Wl REWOUND
LED LIGHT EMITTING DIODE XFMR TRANSFORMER
NONWIR NON Wl REWOUND XTAL CRYSTAL

Electrical Parts List—SC 501
CROSS INDEX MFR. CODE NUMBER TO MANUFACTURER
MFR.CODE MANUFACTURER ADDRESS CITV.STATE.ZIP
0085
3
SaztgaiBO Electric Co. ,S. Carolina Dlv. F. O. Box 128 Pickens, SC 29671
01002 General Electric Co. ,Industrial and
Pover Capacitor Products Dept, John St. Hudson Falls, NY 12839
0X121 Allen-Bradley Co. 1201 2nd St. South Milwaukee, VL 53204
02735 BCA Corp. ,Solid State Division Route 202 Somerville, NY 08876
03508 General Electric Co.
,
Semi-Conductor
Products Dept. Electronics Peu'k Syracuse, NY 13201
04713 Motorola, Inc. ,Soslconductor
products Dlv. 5005 E. McDowell Rd. Phoenix, AZ 85008
07263 Fsirchild Semiconductor, XDlv. of
FEtlrchild Camera and Instrument Corp. 464 Ellis St. Mountain View, CA 94040
07910 Teledyne Semiconductor 12515 chadron Ave. •Hawthorne, CA 90250
10389 Chicago Switch ,Inc
.
2035 Wabansia Ave. Chicago, IL 60647
12040 National Semiconductor Corp. Ccsmnerce Drive Danbury, CT 06810
14752 Electro Cube Inc. 1710 S. Del Mar Ave. San Gabriel, CA 91776
22229 Solltron Devices, Inc. 8808 Balboa Ave. San Diego, CA 92123
24931 Specialty Connector Co., Inc. 3560 Madison Ave. Indianapolis, IN 46227
27014 National Semi-Conductor Corp. 2900 San Ysidro Way Santa Clara, CA 95051
34553- Ai^rex Electronic Corp. ,Coo^nent Dlv. 35 BOfAllan Ave. Bappauge, NY 11787
56289 Sprague Electric co. North Adams, MA 01247
63743 Nsurd Leonard Electric Co., Inc. 31 South St. Mount Vernon, NY 10550
71590 Centralab Electronics, Dlv. of
Globe-Union, Inc. 5757 N. Green Bay Ave. Milwaukee, WI 53201
71744 Chicago Miniature Laji^ Works 4433 Ravenswood Ave. Chicago, IL 60640
72136 Electro Motive Mfg. Co., Inc., The South Park and John Streets Willimantic, CT 06226
72982 Erie Technological Products, Inc. 644 W. 12th St. Erie, PA 16512
73138 Beckman Instruments, Inc., Bellpot Dlv. 2500 Harbor Blvd. Fullerton, CA 92634
74970 Johnson, £. F. ,Co. 299 10th Ave. S. W. Waseca, MN 56093
75042 TRW Electronic Coe^xments, IRC Fixed
Resistors, Philadel^la Division 401 N. Broad St. Philadelphia, PA 19108
80009 Tektronix, Inc. P. 0. Box 500 Beaverton, OR 97005
91637 Dale Electronica, Inc. P. 0. Box 609 Columbus, NB 68601

Electrical Parts List—SC 501
Tektronix
Ckt No. Port No. Serial/Model No.
Eff Dscont Nome &Description
Mfr
Code
A1 670-3304-00 CKT BOARD ASSY:MAIN 80009
A2 670-3364-00 CKT BOARD ASSY :AMPLIFIER 80009
ClOO 283-0189-00
C102 281-0184-00
C104 281-0153-00
C105 281-0628-00
C107 283-0641-00
CAP.,FXD,CER DI:0.lDF,20%,400V 72982
CAP. ,VAR,PLSTC:2-18PF,500VDC 34553
CAP. ,VAR,AIR DI:1.7-10PF, 250V 74970
CAP.,rXD,CER DI:15PF,5%,600V 72982
CAP. ,FXD,MICA D:180PF,1%,100V 00853
Clio 281-0184-00
C112 281-0153-00
C113 281-0628-00
C115 283-0696-00
C117 281-0184-00
CAP. ,VAR,PLSTC:2-18PF,500VDC 34553
CAP. ,VAR,AIR DI:1.7-10PF, 250V 74970
CAP.,FXD,CER DI:15PF,5%,600V 72982
CAP. ,FXD,MICA D:2300PF,1%,500V 72136
CAP. ,VAR,PLSTC:2-18PF,500VDC 34553
C118 281-0576-00
C120 283-0003-00
C124 290-0525-00
C127 281-0518-00
C138 283-0003-00
CAP.,FXD,CER D1:11PF,5%,S00V 72982
CAP.,FXD,CER DI:0.01UF,+80-20%, 150V 72982
CAP. ,FXD,ELCTLT:4.7tJF,20%,50V 56289
CAP.,FXD,CER DI:47PF,+/-9.4PF,500V 72982
CAP.,FXD,CER DI :0.01UF, +80-20%, 150V 72982
C154 281-0528-00
C156 290-0525-00
C169 281-0576-00
C200 281-0550-00
C204 281-0629-00
CAP.,FXD,CER DI:82PF,+/-8.2PF,500V 72982
CAP.,FXD,ELCTLT:4.7UF,20%,50V 56289
CAP.,FXD,CER DI:11PF,5%,500V 72982
CAP.,FXD,CER DI:120PF,10%,500V 72982
CAP.,FXD,CER DI:33PF.,5%,600V 72982
C205 290-0522-00
C210 283-0004-00
C218 290-0522-00
C220 283-0051-00
C228 283-0594-00
CAP. ,FXD,ELCTLT:1UF,20%,50V 56289
CAP.,FXD,CER DI:0.02UF,+80-20%, 150V 72982
CAP.,FXD,ELCTLT:1UF,20%,50V 56289
CAP.,FXD,CER DI:0.00330F,5%,100V 72982
CAP. ,FXD,MICA D:0.001DF,1%,100V 00853
C229 285-1049-00 CAP
C230 285-1051-00 CAP
C270 283-0003-00 CAP
C305 281-0524-00 CAP
C310 281-0658-00 CAP
C318 281-0638-00 CAP
C339 281-0526-00. CAP
C345 283-0178-00 CAP
C346 283-0178-00 CAP
C348 283-0003-00 CAP
C367 283-0010-00 CAP
C369 290-0522-00 CAP
C375 283-0010-00 CAP
C378 290-0410-00 CAP
C380 285-0629-00 CAP
.,FXD,PLSTC:0.010F,1%,200V 14752
.,FXD,PLSTC:1UF,1%,200V 14752
.,FXD,CER DI.-O.OIOF, +80-20%, 150V 72982
.,FXD,CER DI:150PF,+/-30PF,500V 72982
.,FXD,CER DI:6.2PF,+/-0.25PF,500V 72982
.,FXD,CER DI:240PF,5%,500V 72982
.,FXD,CER DI:1.5PF,+/-0.5PF,500V 72982
.,FXD,CER DI:0.1OF, +80-20%, lOOV 72982
.,FXD,CER DIiO.lOF,+80-20%, lOOV 72982
.,FXD,CER DI:0.01UF,+80-20%, 150V 72982
.,FXD,CER DI:0.0'50F, +100-20%, 50V 56289
.,FXD,ELCTLT:1UF,20%,50V 56289
.,FXD,CER DI:0.050F,+100-20%, 50V 56289
.,FXD,ELCTLT:15UF, +50-10%, lOOV 56289
.,FXD,PLSTC:0.047UF,20%,100V 01002
C382 290-0410-00
C384 283-0267-00
C385 283-0267-00
C387 283-0267-00
C388 283-0267-00
CAP. ,FXD,ELCTLT:15UF, +50-10%, lOOV 56289
CAP. ,FXD,CER DI:0.01DF,20%,500V 72982
CAP. ,FXD,CER DI:0.01UF,20%,500V 72982
CAP.,FXD,CER DI:0.01DF,20%,500V 72982
CAP. ,FXD,CER DI:0.01UF,20%,500V 72982
C390 283-0267-00
C391 283-0267-00
C392 283-0013-00
C394 283-0013-00
C395 283-0013-00
CAP. ,FXD,CER DI:0.010F,20%,500V 72982
CAP. ,rxD,CER DI:0.01DF,20%,500V 72982
CAP.,FXD,CER DI:0.01UF,+100-0%, lOOOV 56289
CAP.,FXD,CER DI:0.01UF,+100-0%, lOOOV 56289
CAP.,FXD,CER DI:0.01UF,+100-0%, lOOOV 56289
C397 283-0013-00
C408 283-0279-00 CAP.,FXD,CER DIiO.OlUF,+100-0%, lOOOV 56289
CAP. ,FXD,CER DIiO.OOlOF, 20%, 3000V 72982
Mfr Part Number
670-3304-00
670-3364-00
8151-400X5R104M
2222-809-05003
187-0106-005
301-000C0G01S0G
D151E181F0
2222-809-05003
187-0106-005
301-OOOCOGO15OG
DM19E232F0500
2222-809-05003
301-050COG0110J
855-547E103Z
196D475X00S0KA1
301-O0OU2J047OM
85S-547E103Z
301-OOOU2M0820K
196D475X0050KA1
301-050COG0110J
301-OOOX5P0121K
308-000COG0330G
196D105X0050HA1
855016Z5V0203Z
196D105X0050HA1
8131N145C0G332J
D151F102F0
230B1C103F
230B1C105F
855-547E103Z
301-OOOX5UO151M
301-000C0H0629C
301-OOOZ5D0241J
301-OOOS2K0159D
8131N145651104Z
8131N145651104Z
855-547E103Z
273C20
196D105X0050HA1
273C20
30D156F1000DD4
64F19AB473
30D156F1000DD4
841-541C103M
841-541C103M
841-541C103M
841-541C103M
841-541C103M
841-541C103M
33C29A7
33C29A7
33C29A7
33C29A7
878Y5S102M
REV. BAUG 1974 2-6

Electrical Parts List—SC 501
Tektronix Serial /Model No.
Ckt No. Port No. Eff Dscont
C412 290-0522-00
C41S 283-0343-00
C418 283-0279-00
C420 290-0164-00
C422 281-0638-00
C424 283-0057-00
C505 281-0638-00
CS14 290-0525-00
C520 290-0525-00
CS2S 290-0525-00
C527 290-0525-00
C530 290-0525-00
CS37 290-0525-00
C540 281-0638-00
CR121 152-0246-00
CR12S 152-0141-02
CR152 152-0141-02
CR154 152-0141-02
CR165 152-0233-00
CR178 152-0233-00
CR190 152-0141-02
CR200 152-0141-02
CR201 152-0141-02
CR215 152-0141-02
CR238 152-0141-02
CR280 152-0141-02
CR282 152-0141-02
CR285 152-0061-00
CR290 152-0061-00
CR334 152-0141-02
CR362 152-0141-02
CR365 152-0141-02
CR366 152-0141-02
CR382 152-0107-00
CR384 152-0107-00
CR386 152-0107-00
CR387 152-0107-00
CR389 152-0107-00
CR390 152-0107-00
CR392 152-0107-00
CR415 152-0107-00
CR416 152-0107-00
CR418 152-0107-00
CR420 152-0107-00
CR424 152-0107-00
CR540 152-0141-02
DS515 150-0109-00
JlOO 131-0955-00
JlOl 355-0170-00
Name &Description
CAP .,FXD ,ELCTLT ;lUF ,20% ,50V
CAP.,FXD,CER DI:0.01OF, 20%, 2000V
CAP.,FXD,CER DIsO.OOlDF, 20%, 3000V
CAP .,FXD ,ELCTLT :lOF ,+50-10% ,ISOV
CAP.,FXD,CER DI:240PF,5%,500V
CAP.,FXD,CER DliO.lOF,+80-20%, 200V
CAP.,FXD,CER DI:240PF,S%,500V
CAP. ,FXD,ELCTLT:4.70F,20%,50V
CAP .,FXD ,ELCTLT :4.TOT ,20% ,50V
CAP. ,FXD,ELCTLT!4.7UF,20%,50V
CAP. ,FXD,ELCTLT:4.7OF,20%,50V
CAP .,FXD ,ELCTLT !4.70F ,20% ,50V
CAP. ,FXD,ELCTLT!4.7OF,20%,50V
CAP.,FXD,CER OI:240PF,5%,500V
SEMICOND DEVICE:SILICON,400PIV,200MA
SEMICOND DEVICE: SILICON, 30V, 150MA
SEMICOND DEVICE:SILICON, 30V, 1SOMA
SEMICOND DEVICE:SILICON,30V,lS0MA
SEMICOND DEVICE:SILICON,8SV,100MA
SEMICOND DEVICE:SILICON,8SV,100MA
SEMICOND DEVICE :SILICON, 30V, 150MA
SEMICOND DEVICE :SILICON, 30V, 150MA
SEMICOND DEVICE: SILICON, 30V, ISOMA
SEMICOND DEVICE:SILICON, 30V, 1SOMA
SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE :SILICC»J, 30V, 150MA
SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE: SILICON, 17 SV,100MA
SEMICOND DEVICE; SILICON, 17 5V,100MA
SEMICOND DEVICE :SILICON, 30V, 1SOMA
SEMICOND DEVICE :SILICON, 30V, ISOMA
SEMICOND DEVICE: SILICON, 30V, ISOMA
SEMICOND DEVICE:SILICON, 30V, ISOMA
SEMICOND DEVICE:SILICC»J,375V,400MA
SEMICOND DEVICE:SILICON,375V,400MA
SEMICOND DEVICE :SILICON, 375V, 400MA
SEMICOND DEVICE:SILICON,37SV,400MA
SEMICOND DEVICE: SILICON, 375V, 400MA
SEMICOND DEVICE:SILICON,375V,400MA
SEMICOND DEVICE:SILICON,375V,400MA
SEMICOND DEVICE :SILICON ,37 SV ,400MA
SEMICOND DEVICE:SILICON,37SV,400MA
SEMICOND DEVICE: SILICON, 375V, 400MA
SEMICOND DEVICE:SILICON,375V,400MA
SEMICOND DEVICE:SILICON,37SV,400MA
SEMICOND DEVICE-.SILICON, 30V, ISOMA
LAMP ,INCAND :18V,26MA
CONNECTOR, RCPT, :BNC,FEMALE
STDD,SH(XILDERED:6-32 X0.40 INCH LONG
Mfr
Code Mfr Part Number
56289 196D105X0050HA1
72982 3848-019E103M
72982 878YSS102M
56289 30D105F1S0BA4
72982 301-000ZSD0241J
56289 274C10
72982 3O1-O00Z5DO24U
56289 196D47SX0050KA1
56289 196D475X0050KA1
56289 196D475X0050KA1
56289 196D475XOOSOKA1
56289 196D475X0050KA1
56289 196D475X0050KA1
72982 301-OO0Z5D0241J
07910 CD12676
07910 1N4152
07910 1N4152
07910 1N4152
07910 CD61128
07910 CD61128
07910 1N4152
07910 1N4152
07910 1N4152
07910 1N4152
07910 1N4152
07910 1N4152
07910 1N4152
80009 152-0061-00
80009 152-0061-00
07910 1N4152
07910 1N4152
07910 1N41S2
07910 1N4152
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
80009 152-0107-00
07910 1N4152
71744 CM7220
24931 28JR200-1
80009 355-0170-00
L415^
P415^
^Furnished as a unit with V415.
2-7 REV. BAUG 1974

Electrical Parts List—SC 501
Ckf No.
Tektronix
Port No. Seriol/Model No. Etf Dscont Nome &Description
Mfr
Code Mfr Port Number
Q120A,B 151-1011-00 TRANSISTOR :SILICON,JFE ,N-CHANNEL ,DUAL 22229 FD1167
C125 151-0190-00 TRANSISTOR :SILICON ,NPN 04713 2N3904
Q135 151-0190-00 TRANSISTOR :SILIC£»I ,NPN 04713 2N3904
Q148 151-0190-00 TRANSISTOR!SILICON ,NPN 04713 2N3904
Q150 151-0188-00 TRANSISTOR :SILICC8J ,PNP 04713 2N3906
Q158 151-0188-00 TRANSISTOR :SILICON ,PNP 04713 2N3906
Q160 151-0190-00 TRANSISTOR :SILICON ,NPN 04713 2N3904
C165 151-0279-00 TRANSISTOR:SILICON ,NPN 07263 S25381
Q167 151-0190-00 TRANSISTOR :SILICON ,NPN 04713 2N3904
C176 151-0190-00 TRANSISTOR: SILICON ,NPN 04713 2N3904
Q178 151-0279-00 TRANSISTOR:SILICON ,NPN 07263 S25381
Q184 151-0342-00 TRANSISTOR :SILICON ,PNP 07263 2N4249
Q190 151-0341-00 TRANSISTOR :SILICON ,NPN 07263 2N3565
Q230A,B 151-1054-00 TRANSISTOR :SILIOXJ ,JFE ,N-CHANNEL .DUAL 22229 FD1644
C240 151-0190-00 TRANSISTOR :SILICON ,NPN 04713 2N3904
Q250 151-0190-00 TRANSISTOR:SILICON,NPN 04713 2N3904
C252 151-0342-00 TRANSISTOR:SILICCM ,PNP 07263 2N4249
C270 151-0342-00 TRANSISTOR :SILICCM ,PNP 07263 2N4249
Q285 151-0347-00 TRANSISTOR:SILICON ,NPN 80009 151-0347-00
Q290 151-0347-00 TRANSISTORiSlLICON ,NPN 80009 151-0347-00
5305A,B 151-1054-00 TRANSISTOR:SILICON ,JFE ,N-CHANNEL ,DUAL 22229 FD1644
Q315 151-0341-00 TRANSISTOR :SILICON ,NPN 07263 2N3565
C320 151-0341-00 TRANSISTOR:SILICON,NPN 07263 2N3565
C336 151-0342-00 TRANSISTOR:SILICON ,PNP 07263 2N4249
C345 151-0350-00 TRANSISTOR :SILICON ,PNP 07263 2N5401
Q348 151-0347-00 TRANSISTOR:SILICON ,NPN 80009 151-0347-00
C350 151-0301-00 TRANSISTOR :SILICON ,PNP 04713 2N2907A
Q360 151-0519-00 TRANSISTOR:SILICON,SCR 04713 2N5063
C365 151-0254-00 TRANSISTOR:SILICON ,NPN 03508 2N5308
0370 151-0301-00 TRANSISTOR:SILICON ,PNP 04713 2N2907A
Q380 151-0358-00 TRANSISTOR:SILICON,NPN,SEL FROM D44R4 03508 D44R211
0500 151-0190-00 TRANSISTOR:SILICON ,NPN 04713 2N3904
0510 151-0342-00 TRANSISTOR :SILICON,PNP 07263 2N4249
0520 151-0208-00 TRANSISTOR :SILICtW ,PNP 12040 2N4036
0525 151-0341-00 TRANSISTOR :SILICON,NPN 07263 2N3565
0530 151-0342-00 TRANSISTOR:SILICON ,PNP 07263 2N4249
0535 151-0136-00 TRANSISTOR :SILICON,NPN 02735 35495
0540 151-0342-00 TRANSISTOR :SILICON ,PNP 07263 2N4249
0545 151-0341-00 TRANSISTOR:SILICON ,NPN 07263 2N3565
RlOO 315-0201-02 RES.,FXD,CC»0>:200 OHM,5%,0.25W 01121 CB2015
R105 322-0621-00 RES.,FXD,FILM:900K CNm,l%,0.25W 75042 CEBT0-9003F
R107 321-0617-00 RES. ,FXD,FILM: lllK OHM,1%,0.125W 75042 CEAT0-1113F
R113 322-0624-00 RES. ,FXD,FIU!:990K OHM,1%,0.25W 75042 CEBT0-9903F
R115 321-0614-00 EES. ,FXD,Fim:10.1K C«M,1%,0125W 75042 CEAT0-1012F
R117 321-0481-00 RES.,FXD,FIm:lM OHM,1%,0.125W 75042 CEAT0-1004F
R120 315-0104-00 RES.,FXD,COMP :100K CNm,5%,0.25W 01121 CB1045
R121 315-0201-00 RES. ,FXD,COMP:20O OHM,5%,0.25W 01121 CB2015
R125 321-0184-00 RES. ,FXD,FILM:806 OHM,1%,0.125W 75042 CEAT0-8060F
R127 321-0242-00 RES.,FXD,FILM:3.24K OHM,1%,0.125W 75042 CEAT0-3241F
R129 321-0086-00 EES. ,FXD,FILM: 76. 8OHM,1%,0.125W 75042 CEAT0-76R80F
R130 311-1182-00 RES. ,VAR,NONWIR:1.5X OHM, 10%, 0. SOW 01121 W-783S
R132 311-1560-00 RES. ,VAR,NONWIR:5K OHM, 5%, 0, SOW 73138 91A-500CW1
R134 321-0242-00 RES, ,FXD,FILM:3.24K CNiM,l%,0.12SW 75042 CEAT0-3241F
R136 321-0181-00 EES. ,FXD,FILM:750 OHM,1%,0.125W 75042 CEAT0-7500F
REV. BAUG 1974 2-8

Electrical Parts List—SC 501
Ckt No. Tekfronix
Port No. Serial /Model No. Eff Dscont Name &Description
Mfr
Code Mfr Part Nur
R138 31S-0S60-00 RES.,FXD,COMP: 56 OHM,5%,0.25W 01121 CB560S
R139 315-0472-00 RES.,FXD,COMP:4.7K OHM,5*,0.25W 01121 CB4725
R142 311-1558-00 R£S.,VAR,t)ONWIR:20R (%M ,20% ,0.SOW 73138 91A-20001M
R145 311-1298-00 RES.,VAR,NOtJWIR.-10K OHM, 20%, 0. SOW 01121 W7909
R146 315-0622-00 RES.,FXD,COMP:6. 2K 0HM,5%,0.25W 01121 CB6225
R147 315-0155-00 RES.,FXD,COMP:1.5M OHM,5%,0.25W 01121 CB1555
r148 315-0103-00 RES. ,FXD,COMP: lOK OHM,5%,0.25W 01121 CB1035
R150 321-0221-00 RES.,FXD,FILM:1.96K OHM,1%,0.125W 75042 CEAT0-1961F
R1S2 321-0230-00 RES.,FXD,FILM:2.43K OHM,1%,0.125W 75042 CEAT0-2431F
R154 321-0155-00 RES.,FXD, FILM: 402 OHM,l% ,0.12SW 75042 CEATO-4020F
R156 321-0230-00 RES.,FXD,FILM:2.43K OHM,1%,0.125W 75042 CEAT0-2431F
Rise 321-0221-00 RES.,FXD,FIIM:1.96K OHM,1%,0.125W 75042 CEAT0-1961F
R160 315-0103-00 RES.,FXD,COMP :10K OHM,S%,0.2SW 01121 CB1035
R165 308-0293-00 RES.,FXD,WW:4K OHM,5%,3W 91637 RS2B-B40000J
R167 322-0210-00 RES. ,FXD,FILM:1.5K CHM,1%,0.25W 75042 CEBT0-1501F
R169 321-0184-00 RES. ,FXD,FILM: 806 OHM,1%,0.125W 75042 CEATO-8060F
R172 311-1563-00 RES. ,VAR,N0NWIR:1K OHM, 20%, 0. SOW 73138 91A-10000M
R174 315-0392-00 RES.,FXD,COMP:3.9K CMffl,5%,0.25W 01121 CB392S
R176 322-0210-00 RES. ,FXD,FILM:1.5K OHM,1%,0.25W 75042 CEBT0-1501F
R178 308-0293-00 RES.,FXD,WW:4K OHM,5%,3W 91637 RS2B-B40000J
R184 315-0622-00 RES. ,FXD,COMP :6.2K OHM,5%,0.2SW 01121 CB6225
Riee 311-1565-00 RES.,VAR,NONWIR:250 OHM, 20%, 0. SOW 73138 91A250R0M
R187 315-0331-00 RES. ,FXD,COMP :330 OHM,5%,0.25W 01121 CB3315
R189 315-0561-00 RES.,FXD,COMP: 560 OHM,5%,0.25W 01121 CB5615
R190 315-0182-00 RES. ,FXD,COMP :1.8K C«M,5%,0.2SW 01121 CB1825
R192 315-0272-00 RES. ,FXD,COMP:2.7K OHM,5%,0.25W 01121 CB2725
R200 315-0223-00 RES.,FXD,COMP:22K CMM,5%,0.25W 01121 CB2235
R205 315-0332-00 RES.,FXD,CC»a>:3.3K C»M,5%,0.25W 01121 CB3325
R210 311-1686-00 RES.,VAR,NONWIR:2.5K OHM,20%,1W 01121 12M358
R212 311-1559-00 RES. ,VAR,NONWIR:10K OHM, 20%, 0. SOW 73138 91A-10001M
R214 315-0333-00 RES.,FXD,COMP: 33K OHM,5%,0.25W 01121 CB3335
R215 315-0122-00 RES.,FXD,COMP:1.2K OHM,5%,0.25W 01121 CB1225
R220 315-0223-00 RES.,FXD,COMP :22K OHM,5%,0.25W 01121 CB2235
R22S 311-1686-00 RES. ,VAR,N0NWIR:2.5K OTM,20%,1W 01121 12M358
R226 311-1564-00 RES.,VAE,NONWIR:500 CMM,20%,0.50W 73138 91A-500R0M
R228 321-0368-00 RES.,FXD,FILM:66,SK OHM,1%,0.125W 75042 CEAT0-6652F
R229 322-0464-00 RES. ,FXD,FILM:665K OHM,1%,0.25W 75042 CEBT0-6653F
R230 323-0557-08 RES.,FXD,FILM:6.19M OHM,1%,0.50W 75042 CECT2-6194F
R231 321-0450-00 RES., FXD,FILM :475K OHM,1%,0.125W 75042 CEAT0-4753F
R235 311-1558-00 RES. ,VAR,NONWIR:20K OHM, 20%, 0. SOW 73138 91A-20001M
R236 315-0433-00 RES.,FXD,COMP: 43K OHM,5%,0.25W 01121 CB4335
R238 315-0432-00 RES.,FXD,COMP:4.3K OTM,5%,0.25W 01121 CB4325
R240 315-0103-00 RES. ,FXD,COMP: lOK OHM,5%,0.25W 01121 CB1035
R242 315-0303-00 RES., FXD,COMP :30K OHM,5%,0.25W 01121 CB3035
R245 311-1558-00 RES. ,VAR,N0NWIR;20K OHM, 20%, 0. SOW 73138 91A-20001M
R248 315-0562-00 RES. ,FXD,COMP:5.6K C«M,5%,0.25W 01121 CB5625
R250 315-0103-00 RES. ,FXD,COMP: lOK OHM,S%,0.25W 01121 CB103S
R251 315-0471-00 RES.,FXD,COMP: 470 OHM,5%,0.25W 01121 CB471S
R252 321-0246-00 RES.,FXD,FILM:3.57K CMM,1%,0.125W 75042 CEAT0-3S71F
R254 321-0259-00 RES. ,FXD,FILM:4.87K OHM,1%,0.12SW 75042 CEAT0-4871F
R256 315-0512-00 RES.,FXD,C0MP:S.1K OHM,5%,0.25W 01121 CB5125
R2S8 311-1564-00 RES. ,VAR,NONW1R:500 OHM ,20% ,0.SOW 73138 91A-5O0R0M
R260 315-0821-00 RES,,FXD, COMP:820 OHM,5%,0.25W 01121 CB8215
R265 311-1561-00 RES. ,VAR,N0NWIR:2.5K OHM, 20%, 0. SOW 73138 91A-25000M
R267 321-0259-00 RES. ,FXD,FILM:4.87X OBM,1%,0.125W 75042 CEAT0-4871F
2-9 REV. BAUG 1974

Electrical Parts List—SC 501
Ckt No.
Tektronix
Port No.
Seria
Eff
1/Model No.
Dscont Nome &Description
Mfr
Code Mfr Part Number
R270 321-0246-00 RES. ,FXD,FILM:3.57K OHM.l* .0.125W 75042 CEAT0-3571F
R272 315-0222-00 RES. ,FXD,COMP:2.2K C»IM,5%,0.25W 01121 CB2225
R273 315-0912-00 RES.,FXD,C«a>!9.1K C«M,5%,0.25W 01121 CB9125
R275 311-1298-00 RES. ,VAR,fKMWIR:10K C«JM ,20% ,0.SOW 01121 W7909
R280 315-0102-00 RES.,FXD,CCMP:1K OHM,5%,0.25W 01121 CB1025
R285 308-0412-00 RES.,FXD,WW:8.2K OHM,l%,3W 91637 RS288201F
R287 321-0243-00 RES.,FXD,FIU<:3.32K OHM,1%,0.125W 75042 CEAT0-3321F
R289 321-0193-00 RES. ,FXD,FIU1:1K CMM,1%,0.125W 75042 CEATO-IOOIF
R291 321-0243-00 RES. ,FXD,FIIA!:3.32K OHM,1%,0.125W 75042 CEAT0-3321F
R294 308-0412-00 RES. ,FXD,WW:8.2K OHM,l%,3W 91637 RS288201F
R300 311-1555-00 RES.,VAR,NONWIR:100K C«M,20%,0.5W 73138 91A-10002M
R302 315-0153-00 RES. ,FXD,CCMP:15K OHM,5%,0.25W 01121 CB1535
R303 315-0512-00 RES. ,FXD,COMP:5.1K OHM,5%,0.25W 01121 CB5125
R305 315-0392-00 RES. ,FXD,COMP:3.9K C«M,5%,0.25W 01121 CB3925
R307 315-0332-00 RES. ,FXD,CCMP:3.3K OTM,5%,0.25W 01121 CB3325
R310 315-0243-00 RES. ,FXD,COMP:24K OHM,5%,0.25W 01121 CB2435
R315 315-0273-00 RES. ,FXD,C0MP:27K OHM,5%,0.25W 01121 CB2735
R316 315-0273-00 RES.,FXD,CX»G>:27K OHM,5%,0.25W 01121 CB2735
R318 315-0103-00 RES. ,FXD,COMP:10K C»M,5%,0.25W 01121 CB1035
R320 315-0222-00 RES.,FXD,C0MP:2.2K C»JM,5%,0.25W 01121 CB2225
R324 321-0226-00 RES. ,FXD,FILM:2.21K OHM,1%,0.125W 75042 CEAT0-2211F
R326 321-0298-00 RES.,FXD,FIU<:12.4K QHM,1%,0.125W 75042 CEAT0-1242F
R328 315-0113-00 RES.,FXD,COMP :11K C»M,5%,0.25W 01121 CB1135
R330 311-1298-00 RES.,VAR,NONWIR:10K CttiM,20%,0.50W 01121 W7909
R334 315-0184-00 RES. ,FXD,COMP: 180K OHM,S%,0.25W 01121 CB1845
R336 315-0222-00 RES.,FXD,CC«P:2.2K C«m,5%,0.25W 01121 CB2225
R337 315-0472-00 RES.,FXD,COMP: 4. 7K C«M,5%,0.25W 01121 CB4725
R339 321-0344-00 RES.,FXD,FILM: 37. 4K OHM,1%,0.125W 75042 CEAT0-3742F
R342 315-0683-00 RES.,FXD,COMP:68K OHM,5%,0.25W 01121 CB6835
R343 315-0682-00 RES. ,FXD,COMP:6.8K OHM,5%,0.25W 01121 CB6825
R345 315-0471-00 RES. ,FXD,COMP :470 OHM,5%,0.25W 01121 CB4715
R346 315-0182-00 RES. ,FXD,COMP:1.8K OHM,5%,0.25W 01121 CB1825
R348 315-0101-00 RES.,FXD, COMP: 100 OHM,5%,0.25W 01121 CB1015
R352 315-0102-00 RES. ,FXD,COMP: IK OHM,5%,0.25W 01121 CB1025
R354 315-0472-00. RES. ,FXD,COMP: 4. 7K C«M,5%,0.25W 01121 CB4725
R356 315-0183-00 RES.,FXD, COMP :18K OHM,5%,0.25W 01121 CB1835
R357 315-0102-00 RES. ,FXD,COMP: IK OHM,5%,0.25W 01121 CB1025
R362 321-0645-00 RES. ,FXD,FILM: lOOK OHM,0.5%,0.125W 75042 CEAT2100KD
R363 315-0102-00 RES. ,FXD,COMP: IK Omi,5%,0.25W 01121 CB1025
R365 315-0103-00 RES. ,FXD,COMP: 1OK OHM,5%,0.25W 01121 CB1035
R367 315-0103-00 RES. ,FXD, COMP: 1OK OHM,5%,0.25W 01121 CB1035
R369 315-0101-00 RES. ,FXD,CCWP:100 OHM,5%,0.25W 01121 CB1015
R370 315-0222-00 RES. ,FXD,COMP:2.2K OHM,5%,0.25W 01121 CB2225
R372 315-0682-00 RES. ,FXD,COMP:6.8K OHM,5%,0.25W 01121 CB6825
R374 315-0472-00 RES. ,FXD,COMP :4.7K OHM,5%,0.25W 01121 CB4725
R375 315-0101-00 RES. ,FXD,COMP: 100 OHM,5%,0.25W 01121 CB1015
R378 315-0100-00 REE. ,FXD,COMP: 10 OHM,5%,0.25W 01121 CB1005
R380 315-0100-00 RES. ,FXD,COMP:10 OHM,5%,0.25W 01121 CB1005
R382 315-0220-00 RES. ,FXD,COMP :22 OHM,5%,0.25W 01121 CB2205
R392 315-0822-00 RES. ,FXD,COMP:8.2K OHM,5%,0.25W 01121 CB8225
R395 315-0203-00 RES.,FXD,CX»IP:20K OHM,5%,0.25W 01121 CB2035
R397 315-0100-00 RES. ,FXD,COMP :10 OHM,5%,0.25W 01121 CB1005
R398 315-0100-00 EES. ,FXD,COMP:10 OHM,5%,0.25W 01121 CB1005
R400 321-0481-00 RES. ,FXD,FILM:1M OHM,1%,0.125W 75042 CEAT0-10O4F
R402 321-0481-00 RES. ,FXD,FILM:1M OHM,1%,0.125W 75042 CEAT0-1004F
REV. BAUG 1974 2-10