(20)
CH2
POSITION control
ontaI)
(20)
PULL
CH2
INV
switch
(on
CH2
POSITION control)
(21) V
MODE
switch
Jnd
pli-
(22) CHI OUTPUT connector
S
are
Nitch
)ta·
e
For vertically positioning the
CH2
trace on
the
CRT
screen. Clockwise rotation moves
the trace upward, counterclockwise rotation
moves the trace downward.
When pulled, the polarity of the
CH2
signal
is inverted.
To
select the vertical-amplifier display
mode.
CHI position displays only the channel 1
input signal on the
CRT
screen.
CH2
position displays only the channel 2
input signal on the
CRT
screen.
AL
T position displays the input signals of
both channels 1 and
2.
The
CRT
beam is
switched between channels at the end of each
sweep to achieve this multi-channel display.
CHOP
position displays the input signals of
both channels 1 and
2.
The
CRT
beam is
switched between channels at a
250
kHz rate
during the horizontal sweep to achieve this
multi-channel display.
Provides amplified output of the channel 1
signal suitable for driving a frequency
counter or other instrument.
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