Tektronix T921 User Manual

This manual includes
instructions for the T921, T922
and T922R portable
oscilloscopes . The T922 is a 15
MHz,
dual trace,
oscilloscope and the T921 is a 15 MHz, single
trace oscilloscope
. The Vertical Amplifier,
either single
trace or dual trace, provides calibrated
deflection factors
from 2 mV to 10 V/div .
The TimeBase provides stable
triggering over the
full bandwidth of the Vertical
Amplifier(s) and
provides calibrated sweep rates from
0 .5 s/div to 0 .2 Ns/div
. A variable X1 to X10 magnifier
extends the
maximum sweep rate to 20 ns/div .
The T992R is a
rackmount verison of the T922 os-
cilloscope which
takes 5-1/4 inches of rack space .
Characterist ic
Probe Adjust Output
Voltage
(0°Cto
+40° C)
Repetition Rate
Z-Axis Input
Sensitivity
Signal Polarity
T921 and T922
T922R
REV . C APR
1977
PerformanceRequirement
A . DISPLAY
Approximately
0 .5
V .
Approximately 1 kHz .
5 volt
signal causes a noticeable
decrease in intensity .
Positive going from ground .
Either polarity of signal can be
applied, depending upon internal
jumper connections
.
SPECIFICATIONS
TABLE 1-1
Electrical
Features
added to the rackmount version
include : single
sweep ; rear panel outputs for Sweep Gate,
Sweep Ramp,
and Vertical Signal ; internally
selectable Z Axis polarity ;
user selection of the CHOP or
ALT dual trace modes ; and
switch-selectable
front-panel or rear-panel inputs for
CH 1, CH 2,
and EXT TRIG signals .
The following instrument specifications
apply over an
ambient temperature range of
0°C to +45°C unless
otherwise specified .
The Adjustment Procedure in Section
4, when
performed completely, allows the T921/T922/
T922R to
meet the electrical specifications listed in
Table
1-1 .
Characteristic
Line Frequency

1 50 to 60 Hz .
Maximum Power
Consumption
CRT Display
Display Area
Trace Rotation
Range
Standard
Phosphor
Nominal Accel-
erating Potential
Section 1-T921/T922/T922R
36 W, 0 .35
A
at 60 Hz, 120
V
line .
8 x 10 cm .
Adequate to
align trace with
horizontal
center line .
P31 .
PerformanceRequirement
12,400 V .
B . VERTICAL AMPLIFIER
Usable Frequency
Range
Dc to 5 MHz .
Deflection Factor
Maximum Input
30 V
(dc
+
peak ac) 30 V p-p at
Range 2
mV/div
to
10 V/div ;12steps in a 1-
Voltage 1 kHz or
less .
2-5
sequence .
Input Impedance Approximately 10 kit .
Accuracy
Power Source (T922R 120 V-240
V Range and
Line Voltage
HI-LO adjustments are not exter-
+20° C to Within 3% .
Ranges (ac,rms)
nally accessible) .
+30° C
120 V Range HI-108 to 132 V .
O' C to +45 1 C Within 4% .
LO-90 to 110 V .
Uncalibrated Continuously variable between
240 V Range
HI-216 to 250
V . (VAR) Range settings . Extends deflection
factor
LO-198 to 242
V .
to at least 25
V/div (at least 2 .5 :1) .

Tektronix T921 Specifications

General

Brand	Tektronix
Model	T921
Category	Test Equipment
Language	English