2-1-2
Vertical Amplifier Block
(9)
CH1
or X
IN
connector
(10) CH2
or
Y
IN
connector
(11)
CH1
AC/GND/DC switch
(12)
CH2
AC/GND/DC switch
(13)
CH1
VOLTS/DIV switch
(14)
CH2
VOLTS/DIV switch
(15) (16)
VARIABLE
controls
(15) (16)
PULL
X5
MAG
switchs
( on
VARIABLE
controls)
(17) (18)
UNCAL
lamps
(19)
CH1
POSITION control
(19)
PULL
ADD
switch
(on
CH1
POSITION control)
For applying an input signal to vertical-
amplifier
channell,
or to the x-axis (horizontal]
amplifier during
X-Y
operation.
For applying an input signal to vertical-
amplifier channel
2,
or to the Y-axis
(vertical) amplifier during
X-Y
operation.
To select the method of coupling the input
sigrial to the
CH1
vertical amplifier.
AC
position inserts a capacitor between the
input connector and amplifier
to
block any
DC
component
in
the input signal.
GND
position connects the amplifier
to
ground
instead of the input connector, so a ground
referecne can be established.
DC
position connects the amplifier directly
to its input connector, thus passing all
signal components on
to
the amplifier.
To select the method of coupling the input
signal
to
the
CH2
vertical amplifier.
To select the calibrated deflection factor of
the input signal fed to the
CH1
vertical
ampli-
fier.
To select the calibrated deflection factor
of the input signal
fed
to
the
CH2
vertical amplifier.
Provide continuously variable adjustment of
deflection factor between steps of the
VOLTS
/DIV switches. VOLTS/DIV calibrations are
accurate only when the
VARIABLE
controls are
click-stopped
in
their fully clockwise position.
To increase the vertical amplifier sensitivity
by
5 times. The effective scale factor of the
most sensitive position of the VOLTS/DIV
switch
thereby becomes 1 m V /
div.
Indicate when the
VARIABLE
controls are rota·
ted out of their clickstops.
For vertically positioning the
CH1
trace on
the
CRT
screen. Clockwise rotation moves the
trace
up,
counterclockwise rotation moves the
trace down.
When pulled, the scope displays the algebraic
sum of the
CH1
and
CH2
traces.
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