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CALIBRATION
c.
Phase B
Turn STEPS/SEC to 120 (cw) position. Adjust Phase
B for best flatness at display top.
Check 240 position for alternate switching.
13.
GEOMETRY
a.
Geom Adj
5/8 minor div
Adjust Geom Adj for min curvature of vertical bars:
5/8 minor div bow, max.
Increase PEAK VOLTS for more vertical amplitude,
if desired.
14.
VERTICAL GAIN
a.
Setup
VERTICAL
VERTICAL MA/DIV
INDICATION
HORIZONTAL
HORIZONTAL VOLTS/DIV
range dc volts
SCREEN
.1
+DC
GRID
I
140
Adjust VARIABLE +dc for 570 meter indication of
exactly 140v. Take into account meter error pre
viously noted.
b.
Vert Gain
Set INDICATION to HTR and position the spot to
bottom graticule line.
Set INDICATION to +DC and adjust Vert Gain for
deflection of 10 major div.
Move INDICATION back and forth between +DC and
HTR until all interaction has been compensated for.
TEK 570 FCP
2-5 -64
12c.
13a . NOTE
NOTES
Phase
B
(1)
These crt specifications are simplified.
Do
not reject crt without the authorization of a
trained crt checker, or without reference to
crt data.
570 CALIBRATION
15
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