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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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