Table of Contents
Advertisement
TYPE 661 MAIN FRAME
PLUG-IN
UNIT
COMPARTMENTS
VERTICAL
SYSTEM
accepts
a
4-series
plug-in
unit.
HORIZONTAL
SYSTEM
accepts a 5-series plug-in unit.
HORIZONTAL
DISPLAY
CONTROLS
HORIZONTAL
POSITION
controls
provide
either
coarse
or
fine
adjustment
—
shift
of display
over
10
centimeters
unmagnified
or 1000
centimeters
fully
magnified.
FAST or SLOW
MANUAL
SCAN
permits detailed analysis
of
any
portion
of the
display.
This
mode
of operation
facilitates
driving
external
recorders.
SWEEP
MAGNIFICATION
of 1X, 2X, 5X, 10X 20X, 50X,
or 100X, symmetrical
about the screen
center, reduces the
number
of dots/cm
and
keeps
time/dot
uniform.
EXTERNAL
HORIZONTAL
INPUT
permits externally scan-
ning
the sampled
display.
50mv/cm
to 5v/cm
sensitivity
linto
25-K
impedance)
is in 7 steps,
1-2-5
sequence,
either
ac or dc-coupled.
Equivalent
time
per centimeter
remains
calibrated.
AMPLITUDE/TIME
CALIBRATOR
CALIBRATED
AMPLITUDES
range
from
1 mv
to 1000 mv
in 4
decade
steps.
Accuracy
with
50-ohm
load
is within
2%
at 1000 mv.
CALIBRATED
TIMES
range
from
0.01 wsec/cycle
to
10
psec/cycle
in 4 decade
steps.
Accuracy
with
50-ohm
load
is within
0.2%,
except
within
2%
at 0.01 usec/cycle.
DELAYED-PULSE
AND
SIGNAL
OUTPUTS
DELAYED
PULSE
50-ohm
output
permits
the
Type
661
(with
4S1
or 4S2
and
5T1A
Units)
to serve
as a rate
gen-
erator to trigger external
circuitry.
Pulses occur nominally
50 nsec
after
the
equivalent
sweep
start
with
a Type
4S]
Unit,
or
10 nsec
after
sweep
start
with
a Type
4S2
Unit.
Amplitude
is at
least
—350 mv
and
risetime
is
less
than
0.04 nsec.
SIGNAL
OUTPUTS
include
those
for Vertical
A, Vertical
B,
and
Horizontal
Outputs
through
an
impedance
of
10
kilohms,
at an
amplitude
of 200 mv/cm
referred
to the
crt
display.
CATHODE-RAY
TUBE
DISPLAY
TEKTRONIX
CRT
is a
flat-faced,
5"
tube
with
an
8-cm
by
10-cm
viewing
area
and
2.7-kv
accelerating
potential.
A P2 phosphor will be supplied with the instrument unless
another
phosphor
is specified.
BEAM-POSITION
INDICATORS
show
the
position
of the
crt beam
when
it is deflected away from the center-screen
area.
ILLUMINATED
GRATICULE
has
variable
edge
lighting
and
is accurately
scribed
in
8 vertical
and
10
horizontal
centimeter
divisions,
with
2-millimeter
baseline
divisions.
ELECTRONICALLY-REGULATED
POWER SUPPLIES
TEMPERATURE
COMPENSATED
AND
REFERENCE
ISO-
LATED SUPPLIES provide adequate power for stable opera-
tion
of
the
oscilloscope
with
plug-in
units.
Line
voltage
changes
within
the
operating
range
cause
imperceptible
changes in the display.
Thermal cutout interrupts the power
if chassis temperature
becomes
excessive.
POWER
REQUIREMENT
is 105v
to
125v
or
210v
to
250v,
50
to
60 cps,
typically
450
watts.
HORIZONTAL
DISPLAY
&
)
X 100
SWEEP
/X SO
MAGNIFIER
X 20
5 \
€Xt.
HORIZ. INPUT |
x10
x5
X2
x1
VERNIER
POSITION
VOLTS/CM
"8
pc 2
©
\.
a
AMPLITUDE/TIME
CALIBRATOR
arte
pSEC/CYCLE
|
mV
AMPLITUDE
1
OUTPUT
INTO
SON
10
100
1000
01
<
OFF
rr
SIGNAL
OUTPUTS
===,
DELAYED
HORIZ.
C
PULSE
5s0n
VERT. A
VERT. B
200
mV/CM
THRU 10K
.
7
MECHANICAL
FEATURES
Type
661
has
an
aluminum-alloy
chassis
and
anodized
front
panel.
Dimensions
are
167%"
high
by
13%"
wide
by
233/,%
deep.
Net
weight
is
49'/.
pounds.
Shipping
weight
is 69
pounds,
approx.
TYPE
661
OSCILLOSCOPE,
without
plug-in
units
....
$1150
Each
instrument
includes:
1— light
filter,
1— power
cord,
2 — instruction
manuals.
Advertisement
Table of Contents
Need help?
Do you have a question about the 5T1A and is the answer not in the manual?
Questions and answers