Tektronix 465B User Manual

Section
1—
465B Service
INTRODUCTION
AND
SPECIFICATION
INTRODUCTION
The
TEKTRONIX 465B Oscilloscope is a
dual-channel,
four-trace
portable instrument,
providing
traces
for
two
input
channels,
a
trigger view from
an external trigger
input, and
an add function.
Calibrated deflection factors
from 5
millivolts/division
to 5
volts/division
are provided
by
the
dc-to-100
MHz vertical
system for the input
channels and add function. Sweep
trigger circuits are
capable of stable triggering
over the full
bandwidth
capabilities of the
vertical deflection system. The
horizon-
tal deflection system
provides calibrated sweep rates
from
0.5 second/division to 0.02
microsecond/division along
with delayed sweep features for
accurate relative-time
measurements. A X10 magnifier
extends the calibrated
sweep rate to 2
nanoseconds/division
The instrument
operates over a
wide variation of
line voltages and
frequencies with
maximum power consumption
of
ap-
proximately 100 watts.
Increased
measurement capabilities are
achieved
by
the 465B when it
is equipped with an optional
TEKTRONIX
DM44 Digital Multimeter. The
DM44 measures 0 to 20
megohms
resistance, 0 to
1200
dc
volts
(+
or -),
and
—
55°C to +150
C
C
temperature (using a temperature
probe).
Measurement values are
displayed on
a
3
1/2-digit
LED
readout while the
oscilloscope continues
normal
operation.
The digital
multimeter and oscilloscope
combine to
provide a
digital readout of time difference
between any
two
points on the
oscilloscope display
Both time
measurement points are
displayed simultaneously
on the
crt.
Direct measurement
of frequency is
provided
by a
1/TIME function.
This manual provides
service information
only for the
465B
Oscilloscope Service
information for the DM44
Digital
Multimeter
is
contained in a
separate DM44 Service
manual.
SPECIFICATION
The
following
electrical characteristics
(Table
1-1)
are
Environmental
characteristics of the
465B
are
valid only if the
instrument has been
calibrated at an
presented in Table 1-2, and
physical characteristics listed
ambient temperature
between +20°C
and
+30°C,
the in Table
1-3
instrument is operating at an
ambient temperature
between
0°C
and
»50°C
(unless
otherwise noted), and
the instrument has had a
warmup
period of about 20
minutes
Table
1-1
ELECTRICAL
CHARACTERISTICS
Characteristics
|
Performance
Requirements
Supplemental
Information
VERTICAL SYSTEM
Deflection Factor
Range 5
mV per
division
to 5
V per division
in
10 steps,
with
a
1-2-5
sequence.
Uncalibrated (VAR) Range
Continuously
variable between
settings. Extends
deflection factor
to
at least 12.5 V
per division.
Accuracy
Within 3%
Gain set at 5
mV
per division
@
1-1

Tektronix 465B Specifications

General

Brand	Tektronix
Model	465B
Category	Test Equipment
Language	English