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Tektronix 2247A

Tektronix 2247A
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Basic
Applications
d.
Select
CH
1
and
CH
2
VERTICAL
MODE.
e.
Set
TRIGGER
SOURCE
switch
to
VERT.
f.
Set
both
VOLTS/DIV
switches
to
produce
displays
of
about
two
or
three
divisions
In
amplitude.
g.
Adjust
the
CH
2
VOLTS/DIV
switch
and
VAR
control
so
that
the
CH
2
display
Is
about
the
same
amplitude
as
the
component
to
be
canceled
In
the
CH
1
waveform
(see
Figure
5-9A).
CH
1
SIGNAL
WITH
UNWANTED
LINE
FREQUENCY
COMPONENT
CH
2
SIGNAL
FROM
LINE
FREQUENCY
SOURCE
SIGNAL
WITH
LINE
FREQUENCY
COMPONENT
CANCELLED
(A)
CH
1
AND
CH
2
SIGNALS.
(B)
RESULTANT
SIGNAL.
6556-35
Figure
5-9,
Eliminating
common-mode
signals.
5-24
2247A
Operators
C32
FS
Ho
E

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