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(9)
(10)
(11)
(12)
0.1
Hz
-
1
Hz
1
HZ
-
10
Hz
10
Hz
-
100
Hz
100
Hz
-
1
kHz
1
kHz
-
10
kHz
DELAY
Controls.
The
rotary
switch
selects
one
of
five
ranges
and
the
vernier
provides
continuously
variable
control
of
each
range.
The
instrument
is
set
to
the
delay
indicated
on
the
front
panel
when
the
vernier
is
in
the
"MAX"
position.
100
ns
-
1
us
1
us
-
10
us
10
us
-
100
us
100
us
-
1
ms
1
ms
-
10
ms
ADVANCE,
DELAY,
DOUBLE
PULSE.
With
this
three
position
switch
in
the
ADVANCE
position,
the
leading
edge
of
the
output
pulse
precedes
the
leading
edge
of
the
SYNC
output.
When
in
the
DELAY
position,
the
leading
edge
of
the
SYNC
output
precedes
the
leading
edge
of
the
main
output.
When
in
the
DOUBLE
PULSE
position,
the
main
output
provides
two
successive
output
pulses
having
a separation
determined
by
the
DELAY
(9)
controls.
PULSE
WIDTH
Controls.
The
rotary
switch
selects
one
of
five
ranges
and
the
vernier
provides
continuously
variable
control
of
each
range.
The
instrument
is
set
to
the
pulse
width
indicated
on
the
front
panel
when
the
vernier
is
in
the
"MAX"
position.
50
ns
-
1
us
1
us
-
10
us
10
us
-
100
us
100
us
-
1
ms
1ms
-
10ms
POLARITY
Switch.
If
the
polarity
switch
is
in
the
"+"
position,
the
main
output
pulse
will
pulse
upwards
(i.e.
to
a more
positive
level).
If
it
is
in
the
"-"
position,
the
output
will
pulse
downwards
to
a more
negative
level.
If
the
setting
of
the
polarity
switch
is
changed
when
the
output
amplitude
is
relatively
high
(eg.
>
25
Volts
in
the
100
Volt
range),
the
output
pulse
will
vanish
for
several
tens
of
seconds
until
the
high
voltage
levels
on
the
output
stage
decay
to
a safe
level.
At
that
time
the
output
will
again
become
active.
Note
that
the
decay-delay
time
may
be
reduced
significantly
by
briefly
setting
the
rear
panel
HV
switch
in
the
"OFF"
position
(and
then
returning
it
to
the
"ON"
position).
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