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Tektronix 47E5A

Tektronix 47E5A
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5.
POSITION-Positions
the
display
vertically
. In the
X-V
mode,
the
CH
1
POSITION
control
positions
on
the X
axis
(horizontally)
and
the
CH
2
POSITION
control
positions
on
the Y-axis
(vertically).
6.
CH
1 OR X
and
CH
2 OR
V-Input
connectors
for
application
of
external
signals
to
the
inputs
of
the
vertical
amplifier.
In the X-V
mode
of
operation,
the
signal
connected
to
the
CH 1 OR X
connector
provides
horizon-
tal
deflection
and
the
signal
connected
to
the
CH
2 OR Y
connector
provides
vertical
deflection.
7.
AC-GND-DC
-
Selects
the
method
used to
couplea
signal
to the
input
of
the
vert
i
cal
amplifier
. In
the
AC
position
,
signals
are
capacitively
coupled
to
the
vertical
amplifier
.
The
dc
component
of
the
input
signal
is
blocked
.
In
the
GND
position,
the
input
of
the
vertical
amplifier
is
disconnected
from
the
input
connector
and
grounded
to
allow
the
input
coupling
capacitor
to
precharge.
In
the
DC
position,
all
components
of
the
input
signal are passed to
the
input
amplifier.
8.
VERT
MODE-Selects
mode
of
operation
for
ver-
tical
amplifier
system
.
CH
1:
Channell
only
is di
splayed.
AL
T: Provides
dual-trace
display
of
the
signals
of
both
channels
.
Display
is
switched
between
channels
at
the
end
of
each sweep.
Useful
at sweep rates faster than
about
50
microseconds/division
.
ADD
:
Signals
applied
to the
CH
1
and
CH
2
input
connectors
are
algebraically
added
,
and
the
algebraic
sum
is
displayed
on
the crt.
The
INVERT
switch
in
Channel
2
allows
the
display
to be
CH
1
plus
CH
2
or
CH 1
minus
CH
2.
Useful
for
common-mode
rejection
to
remove
an
undesi
red
signal
or
for
dc
offset.
CHOP
: Provides
dual-trace
display
of
the
signals
of
both
channels
.
Display
is
switched
between
channe
ls at a
repetition
rate
of
appr
o
ximately
250 kHz.
Useful
at
sweep
rates
slower
than
about
50
micr
o
seconds/division
,
or
when
a
dual
-
trace
,
single-sweep
display
is
required
.
CH
2:
Channel
2
only
is
displayed.
It
must
be selected
in X-
Y
operation
.
9.
100 OR 20
MHz
BW/TRIG
VIEW-
Three-purpose
switch
that
limits
the
bandwidth
of
the
vertical
amplifier
system
to
approximately
100
MHz
(first
detent)
or20
MHz
(second
detent)
when
pulled
,
or
when
pressed, causes the
signal
applied
to
A Tr
igger
Generator
to
be
displayed
on
the crt.
10.
INVERT-Channel
2
display
is inverted in the
INVERT
(button
in)
position.
@
475A/DM44
Operators
5

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