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General
Information
Model 1331A
Table 1-1. Specifications
VERTICAL AND HORIZONTAL AMPLIFIERS
BANDWIDTH:
de
to
1 MHz
(3 dB
down
at
1 MHz).
PHASE SHIFT:
<1°
to 0.5
MHz.
SETTLING
TIME:
Signal
settles to within
1
spot di-
ameter of
final
value
in <1 µsec for
any on-
screen
movement.
DEFLECTION FACTOR
Vertlcal:
1 V
for 8
div deflection.
Internally ad-
justable from 0.09 V
/
div to 0.14 V
/
div.
Horizontal:
1
V
for 10
div
deflection. Internally
adjustable from
0.09 V
/
div to
0.14
V
/
div.
COMMON MODE REJECTION RATIO:
40
dB
to
10
kHz
for
differential input
of 3V
m
aximum
be-
tween outer and inner
coaxial
input
leads.
MAXIMUM INPUT:
±50V
(de
+
peak
ac).
INPUT:
differential between
center
conductor and
shield, shield
may be
grounded with internal
connection.
INPUT RC
Single Ended:
lOOk ohms shunted by approx 80
pF to ground.
Differential:
200k ohms shunted
by
approx 80 pF.
RECOMMENDED SOURCE IMPEDANCE:
<20kohms
between
center
conductor and shield; <lk ohm
from shield to ground.
Z AXIS AMPLIFIER
BANDWIDTH: de to
>5
MHz; risetime, approx
70
ns.
INPUT RC
Single
Ended:
lOk
ohms shunted by
approx
60 pF
to ground.
Differential:
20k
ohms shunted by approx 60 pF.
IN PUT:
-1
Vb
lanks
spot of any
in
tensity;+
1
V turns
beam full on.
MAXIMUM INPUT:
±lOV
(de + peak ac).
RECOMMENDED SOURCE IMPEDANCE:
<20k
ohms
between center conductor and shield;
<lk
ohm
from shield
to
ground.
CATHODE-RAY TUBE AND CONTROLS
1-2
TYPE:
post-accelerator storage tube 7.5
kV accel-
erating
potential, aluminized P31 phosphor.
GRATICULE:
8
x
10
div internal graticule. 1 div=
0.95 cm. Subdivisions of 0.2 div marked on major
axis.
WRITING
SPEED:
>20
div/
ms.
DOT WRITING TIME:
<4
µsec.
DISPLAY LINEARITY
Horizontal:
<5%
difference between any two
div.
Vertical:
<5%
difference between
any
two div.
INFORMATION STORAGE RATE
: 200 thousand
dots per
second.
BRIGHTNESS:
>100
foot
lamberts.
STORAGE TIME
Writing Mode:
1
minute min.
Store
Mode:15 minutes
min.
VARIABLE PERSISTENCE:
variable from 0.2 sec to
1 min.
ERASE
TIME:
<l
sec.
BEAM
FINDER:
returns
beam
to
screen
regardless
of setting of
X
and
Y
position controls.
Rear
panel switch.
GENERAL
POWER: 115V or 230V
±10%,
48 to 440 Hz, approx
60W.
WEIGHT:
net, 19-112 lb (8,85 kg); shipping, 25 lb
(11,34 kg).
DIMENSIONS: Refer to outline drawing.
NOTE1
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