Tektronix 466 User manual

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Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon 97005
070-1652-00
TEKTRONIX.,
INSTRUCTION MANUAL
Serial Number Bb ct244e cise Printing FEB 1974

WARRANTY
All TEKTRONIX instruments are warranted against
defective
materials
and
workmanship
for
one
year.
Any questions with respect to the warranty should
be taken up with your TEKTRONIX Field Engineer or
representative.
All
requests
for
repairs
and
replacement
parts
should
be
directed
to
the
TEKTRONIX
Field
Office
or
representative
in
your
area.
This
will
assure
you
the
fastest
possible
service.
Please
include
the
instrument
Type
Number
or
Part
Number
and
Serial
Number
with
all
requests
for
parts
or
service.
Specifications
and
price
change
privileges
reserved.
Copyright © 1974 by Tektronix, Inc., Beaverton,
Oregon.
Printed
in
the
United
States
of
America.
All
rights
reserved.
Contents
of
this
publication
may
not
be
reproduced
in
any
form
without
permission
of
Tektronix, Inc.
U.S.A.
and
foreign
TEKTRONIX
products
covered
by
U.S.
and
foreign
patents
and/or
patents
pending.
TEKTRONIX
is
a
registered
trademark
of
Tektronix,
Inc.

TABLE OF CONTENTS
BEFORE OPERATING
Introduction
Operating Voltage
Safety Information
Nominal Line Voltage Range
Options
CONTROLS, CONNECTORS AND INDICATORS
Vertical
Display and Storage
Trigger
Horizontal and Power
Rear Panel
Side Panel
P6062A 10X-1X Probe
BASIC DISPLAYS
Normal Sweep Display
Magnified Sweep Display
Delayed Sweep Display
Mixed Sweep Display
X-Y Display
Single Sweep Display
466/464 Operators
Page
WONo
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- =
12
14
15
15
16
18
18
19
19
19

IABLE
OF
CONTENTS
(cont)
STORAGE DISPLAYS Page
Storage 20
Save Storage 22
Save Random Events 22
APPLICATIONS AND MEASUREMENTS
Preliminary 23
Operator’s Adjustments and Checks 24
Peak-to-Peak
Voltage
Measurements—AC
26
Instantaneous Voltage Measurements—DC 27
Comparison Measurements 28
Time-Duration Measurements 30
Frequency Measurements 30
Risetime Measurements 31
Time-Difference Measurements 32
Multi-Trace Phase Difference Measurements 33
High Resolution Phase Measurements 34
X-Y Phase Measurements 35
Delayed or Mixed Sweep Measurements 36
Pulse Jitter Measurements 38
Algebraic Addition 38
Common-Mode Rejection 40
466/464 Operators

TABLE OF CONTENTS (cont)
OPERATORS SPECIFICATIONS
Storage
Vertical
Triggering
Horizontal
X-Y
Calibrator
Z Axis Input
Outputs
AC Power Source
Environmental
ACCESSORIES
Standard Accessories Included
Optional Accessories
OPTIONS
Option 4
Option 7
CHANGE INFORMATION
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Page
41
41
42
43
43
43
aa
44
44
44
45
45
47
47

THE ACCESSORY POUCH ILLUSTRATED SHOULD
REMAIN ATTACHED TO THE OSCILLOSCOPE. IT IS
DESIGNED TO KEEP ACCESSORIES READILY AVAILABLE
AND TO AFFORD THE OSCILLOSCOPE SOME PROTEC-
TION IN TRANSIT.
STORAGE
OR
OPERATION
OF
THE
OSCILLOSCOPE
THE
ADJUSTABLE
CARRYING
HANDLE
IS
DESIGNED
ON
ITS
FOUR
REAR
FEET
IS
NOT
DESIRABLE.
THE
TO
OFFER
CONVENIENT
STABLE,
OPERATING
POSI-
MOST
STABLE
OPERATING
POSITIONS
ARE
ILLUSTRA-
TIONS,
SUCH
AS
THOSE
ILLUSTRATED.
TED.
466 and 464 Portable Storage Oscilloscopes.
466/464 Operators

BEFORE OPERATING
INTRODUCTION
This Operators Manual provides information necessary
to
operate
the
instrument.
Included
are
power
require-
ments;
functions
of
controls,
connectors
and
indicators;
and
methods
for
making
several
different
measurements
of
electrical
phenomena.
Also
included
is
a
procedure
for
checking basic instrument calibration.
The Tektronix 466 and 464 are dual-channel portable
oscilloscopes.
The
466
storage
system
provides
storage
for
displays with a writing speed up to 3000 divisions/
microsecond
(in
the
Fast-Reduced
Scan
mode).
The
464
storage
system
does
not
have
the
reduced
scan
mode
and
the
writing speed is up to 110 divisions/microsecond in the Fast
mode.
The
remaining
features
are
identical.
Storage
view-
time
is
greater
than
15
seconds
at
full-stored
display
in-
tensity—extending
to
more
than
6
minutes
using
reduced
in-
tensity in the Save mode.
The
dual-channel
DC-to-100
MHz
vertical
system
pro-
vides
calibrated
deflection
factors
from
5
millivolts
to
5
volts/division.
The
sweep
trigger
circuits
are
capable
of
stable
triggering
over
the
full
bandwidth
capabilities
of
the
vertical
deflection
system.
The
horizontal
deflection
system
provides
calibrated
sweep
rates
from
0.5
seconds
to
0.05
microsecond/division along with delayed sweep features for
accurate relative-time measurements. A X10 magnifier
extends the calibrated sweep rate to 5 nanoseconds/
division. The instrument operates over a wide variation of
line voltages and frequencies. Maximum power consump-
tion is about 100 watts.
OPERATING VOLTAGE
This instrument operates from either a 115-volt or a
230-volt nominal line voltage source, 48 to 440 hertz.
The line voltage selector switch must indicate the
applied line voltage (115 V or 230 V).
The regulating range selector (Item 52, Controls, Con-
nectors and Indicators) must indicate the regulating range
for the applied operating line voltage.
SAFETY INFORMATION
The instrument is designed to operate from a single-
phase power source with one of the current-carrying
conductors (the Neutral Conductor) at ground (earth)
©
466/464
Operators
1

potential. Operation from power sources where both
current-carrying conductors are live with respect to ground
(such as phase-to-phase on a three-wire system) is not
recommended, since only the Line Conductor has over-
current (fuse) protection within the instrument.
The instrument has a three-wire power cord with a
three-terminal polarized plug for connection to the power
source and safety-earth. The ground (earth) terminal of the
plug is directly connected to the instrument frame. For
electric-shock protection, insert this plug only in a mating
outlet with a safety-earth contact.
NOMINAL LINE VOLTAGE RANGE
This instrument may be damaged if operated with the
line voltage selector switch or the regulating range
selector set for the wrong applied line voltage.
To convert from one nominal line voltage range to the
other, move the Line Voltage Selector switch (located on
side panel) to indicate the correct nominal voltage. A
115-to-230 volt adapter may be required for the line-cord
plug.
The Regulating Range Selector assembly (located on the
rear panel) is set for one of the line voltage ranges shown in
Table 1.
protection.
It also contains the
TABLE 1
Regulating Ranges
line fuse for overload
Regulating Range
Range Selector
Switch Position
115-Volts
Nominal
230-Volts
Nominal
LO (Switch bar in
lower holes) 99 to 121 volts 198 to 242 volts
M (Switch bar in
middle holes) 104 to 126 volts 207 to 253 volts
HI (Switch bar in
upper holes) 108 to 132 volts 216 to 264 volts
Fuse Size 1.5 A 3AG 0.75 A 3AG
Fast-blow Fast-blow
®
2 466/464 Operators

SELECTOR SWITCH BAR
(SHOWN IN MEDIUM POSITION)
LINE FUSE
4140 4
Fig. 1. Regulating range selector and line fuse.
®
466/464
Operators
To change the regulating range:
1. Disconnect the instrument from the power source.
2.
Loosen
the
two
captive
screws
that
hold
the
cover
on
the
selector
assembly;
then
pull
to
remove
the
cover.
3. Pull out the range selector switch bar (see Fig. 1).
Select a range from Table 1 which is centered about the
average
line
voltage.
Slide
the
bar
to
the
desired
position
and plug it in. Push the cover on and tighten the screws.
OPTIONS
Options
are
available
to
alter
oscilloscope
performance
to
meet
particular
applications.
A
number
in
either
MOD
slot
(see
Item
54,
Controls,
Connectors
and
Indicators)
indicates
a
modified
oscilloscope.
Refer
to
the
Option
section
at
the
rear
of
this
manual
to
find
any
change
in
operating
instructions
as
a
result
of
the
option.

Ah -0-3
CONTROLS, CONNECTORS AND
INDICATORS
VERTICAL
1. CH 1 and CH 2 VOLTS DIV — Selects the vertical
deflection factor in a 1-2-5 sequence (VARiable control
must be in the calibrated detent for the indicated deflection
factor).
2. VOLTS/DIV READOUT — Consists of two small
lamps for each channel, located beneath the skirt of each
VOLTS/DIV knob. One or the other lamp will light up to
indicate the correct deflection factor when a probe with a
scale-switching connector is used. A probe without this
connector lights the X1 lamp.
3. VAR — Provides continuously variable uncalibrated
deflection factors between the calibrated settings of the
VOLTS/DIV switch, and extends the maximum vertical
deflection to at least 12.5 volts per division (5 volt
position).
4. UNCAL LAMP — Indicates when the VARiable
VOLTS/DIV control is out of the calibrated detent and the
vertical deflection factor is uncalibrated.
4
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Operators
®