ASTIGMATISM- Adjusts
trace width in conjunct
iOIl with FOCUS control.
SCALE
ILLUM. - --
controls brightness
graticule lights.
ator.
PEAK
Peak
PLATE - - SWP
FUSE --Protel:rs
Sweep Generator
cuits.
HEATER - Se�ttsheu
er voltage
under test.
HEATER VARIABLE
Varies hearer
+
or - 20%.
+ oc
-
- Selects
voltage for
tube
test.
Voltages shown
are
correct only when
V ARIABLE knob is fully
clockwise.
+
DC
VARIABLE
A djusts
+
DC Circuit be
tween voltages indicated
on
+
DC Control.
-DC- -Selects portion
voltage between 0 and
-lSOv for biasing .
2-2
FOCUS- -Adjusts
focus
of CRT Beam.
brightness
play.
VOLTMETER- --Meas
ures voltages connected
to it by
INDlCATIOJ\'
control.
RANGE
DC
VOL TS
Selects voltmeter multi
plier.
INDlCATIO� - - connects
voltmeter to
-0
•
+ OC
or HTR
supplies for
under test.
'
ADJUST--Ad
de level of srair-
VOLTS/STEP- -
adjusts
amplitude of steps
from
Generator.
SINGLE F AMIL Y -When
STEPS/FAMILY control
is clockwise. displays
single
family of curves
then
holds grid negati ve.
TEST
POSITION-- --
Selects
either
of 2
devices under test or
removes grid wavefrom
in center position.
POWER - TEST - --Re
moves all voltages from
test panel.
PLATE - SCREEN
-
GRiD---Selects Plate,
screen or grid voltage
for vertical display.
FUSE - -Protects resis
tors in high senSitivity
positions.
Fig. 2-2. Front-panel controls
of
the Type 570 Oscilloscope.
Operating Instructions - Type 570
STEPS/FAMILY -- --
Adjusts Step Generator
for 4
to 12 steps to
plot 4
to 12 curves.
LA TE-G RiD - - Selects
plate or grid voltage
of device under test for
display on horizontal
VOLTS/
horizontal
POSITION-
POSI
TIONING-Adjusts Hor
izontal position of dis
play.
A A
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