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Tektronix 47E5A

Tektronix 47E5A
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4
CONTROLS,
CONNECTORS
AND
INDICATORS
Fig.
2.
Vertical
controls,
connectors,
and
indicators.
VERTICAL
1.
CH
1
and
CH
2
VOL
TS/DIV-Selects
the
vertical
deflection
factor
in a 1-2-5
sequence
(VAR
control
must
be
in the
calibrated
detent
for
the
indicated
deflection
factor).
2.
VOL
TS/DIV
Readout-Consists
of
two
small
lamps
for
each
channel
,
located
beneath
the
skirt
of
each
VOL
TS
/OIV
knob
.
One
or
the
other
lamp
will
light
up
to
indicate
the
correct
deflection
factor
when
a
probe
with
a
scale-
switching
connector
is used. A
probe
without
this
connector
lights
the
X1
lamp.
3.
VAR-Provides
continuously
variable
uncalibrated
deflection
factors between the
calibrated
settings
of
the
VOL
TS/ OIV
switch,
and
extends
the
maximum
vertical
deflection
to at least 25 volts
per
division
(10 volt
position).
4.
UNCAL
Lamp-Indicates
when
the
VAR
VOL TS/ OIV
control
is
out
of
the
calibrated
detent
and the
vertical
deflection
factor
is
uncalibrated
.
475A/DM44
Operators
@
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