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ON
REAR PANEL
Connect
a
cable
from
the
SYNC
OUT
connector
to
the
TRIG
input
of
an
oscilloscope.
Connect
a
2W
(or
higher)
50
Ohm
load
to
the
OUT
connector
and
place
the
scope
probe
across
this
load.
Set
the
oscilloscope
to
trigger
externally
with
the
vertical
setting
at
5 Volts/div
and
the
horizontal
setting
at
1
us/div.
Then
follow
the
instructions
below
and
compare
what
is
seen
on
the
oscilloscope
to
what
is
described.
Only
approximate
values
are
needed
to
confirm
operation.
STEP
CONTROL
1
POWER
REPETITION
RATE
VERNIER
DELAY
VERNIER
PULSE
WIDTH
VERNIER
POLARITY
SWITCH
AMPLITUDE
RANGE
OPERATION
Push
in
(ON)
Rotate
to
MIN,
then
to
MAX
Rotate
to
MAX,
then
to
MIN
Rotate
to
MIN,
then
to
MAX
Switch
to
-,
then
to
+
Switch
to
30
Volts
and
then
to
100
Volts
and
then
back
to
10
Volts
RESULTS
+10V
pulses
at
the
main
output,
with
period
100
us,
pulse
width
1.0
us,
<
15ns
rise
&
fall
times.
Period
rises
to
about
1
ms
then
falls
to
about
100
us.
Pulses
shift
to
the
right
on
the
oscilloscope
by
1 us,
then
back.
Pulse
width
varies
from
100
ns
to
1.0
us.
Pulse
polarity
becomes
negative
& then
positive.
The
output
pulse
ampli-
tude
will
jump
to
30
Volts
and
then
to
100
Volts.
The
voltage
will
then
decay
slowly
to
10
Volts.
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