Tektronix 535A Oscilloscope
Type 535A Oscilloscope
is a wide-range
general-purpose laboratory instrument providing accurate
measurements in the dc to 15 me range. The Type 535A
operated with any Tektronix
the requirements for virtually any application.
Special circuits incorporated in the Type 535A Oscilloscope
permit an accurate, continuously variable delay in the
presentation of the sweep from 1 microsecond to 10 seconds
after receipt of a triggering impulse. This feature permits
observation of a small portion of the normal sweep, accurate
measurement of waveform jitter, precise time measurements,
as well as many other uses.
All specifications for the Vertical-Deflection System of the
depend upon the Plug-In
unit used with the
instrument. The following specifications are given assuming
that a Type K Plug-In
Unit is used.
Time Base A-0.1 microsec, Js to 5 seconds per centimeter in
24 accurately calibrated steps. An uncalibrated control
permits sweep rates to be varied continuously between 0.1
microseconds and approximately 12 seconds per centimeter.
Calibrated sweep rates are typically within 1 %, and in all
cases within 3%, of the indicated sweep rate.
Time Base B—2 microseconds to 1 second per centimeter in 18
accurately calibrated steps. Sweep rates are typically
within 1%, and in all cases within 3%, of the indicated
Provides a 5-times magnification of the center 2-centimeter
portion of the Oscilloscope
display. Extends the fastest
Time Base A sweep rate to 0.02 microseconds per centimeter
and the fastest Time Base B sweep rate to 0.4 microseconds
DC to 15 me (=3-db down at 15 me)
External Horizontal Input
Deflection factor—approximately 0.2 to 20 volts per
centimeter, continuously variable.
Frequency response—from dc to 350 kHz. Response down 3 db at
Time Base A—Automatic, AC, DC, AC Low Frequency Reject, and
High Frequency Sync.
Time Base B—Automatic, AC, and DC.
Triggering Signal Requirements
Internal triggering—a signal producing 2 millimeters of
vertical deflection except 4 millimeters is required in the
DC and Automatic modes.
External triggering—a signal of 0.2 volts to 10 volts. Sweep
will trigger on larger signals, but TRIGGERING LEVEL control
operates over a ±10 volt range. Automatic mode requires 0.4 v.
High Frequency Sync.—Assures a stable display of sine wave
signals to approximately 30 me. Requires a signal producing
2 centimeters of vertical deflection or an external signal
of more than 2 volts.
Sweep delay continuously variable from 1 microsecond to 10
seconds. Actual delay steps (between 1.00 and 10.00) are
within 1 % of the indicated delay from 2 /nsec/cm to 0.1
sec/ cm; within 3% from 0.2 sec/cm to 1 sec/cm. Incremental
delay accuracy is within 1% ±4 minor divisions.
Time jitter—1 part in 20,000.
Service and User Manual
41.49 Mbytes (43509675 Bytes)
01 January 1959
Scanned document, all readable.
15 April 2017
Section 1 Characteristics
Section 2 Operating Instructions
Section 3 Applications
Section 4 Circuit Description
Section 5 Maintenance
Section 6 Calibration Procedure
Abbreviations and Symbols Parts Ordering Information
Section 7 Electrical Parts List
Mechanical Parts List Information
Section 8 Mechanical Parts List
Section 9 Diagrams
Mechanical Parts List Illustrations Accessories