Tektronix 1S1 Instruction Manual page 69

Calibration – Type 1S1
6. Turn on the autotransformer, the indicator oscilloscope
and the other instruments (not the tunnel diode pulse gen-
erator).
7. Set the autotransformer output to the normal line volt-
age of the indicator oscilloscope (e.g. 117 volts).
mVOLTS/CM
mVolts/Cm VARIABLE
VERT POSITION
DC OFFSET ±1 V
TIME POSITION
FINE
SMOOTHING
SAMPLES/CM
DISPLAY MODE
MANUAL SCAN
EXT HORIZ ATTEN
TIME/CM
Time/Cm VARIABLE
TRIGGER SOURCE
TRIGGER SENSITIVITY
RECOVERY TIME
5-6
Fig. 5-3. initial test setup for steps 1 through 3.
Type 1S1
200
CAL (at detent)
Centered
At center of 10-turn range
Centered
Centered
NORM (clockwise)
Centered
NORMAL
Clockwise
5 nSEC
CAL (at detent)
INT +
Counterclockwise
Centered
8. Allow at least 20 minutes for the Type 1S1 to warm
up before making any calibration checks or adjustments.
9. Connect the 1X test probe to the vertical input con-
nector of the test oscilloscope.
10. After 20 minutes warm up, check the dc balance of
the test oscilloscope.
Indicator Oscilloscope
Stability (both time bases)
Horizontal Display
Intensity
Amplitude Calibrator
Crt Cathode Selector
Test Oscilloscope
Horizontal Display
Time Base A Controls;
Trigger Slope
Triggering Mode
Stability
Triggering Level
Time/Cm
1
Turns off sweep. If oscilloscope
trol is used, turn sweep off by setting it for single sweep operation.
2
Free runs sweep. If oscilloscope without front-panel Stability control is used,
set triggering controls for a free-running sweep.
Counterclockwise (not
1
Preset)
Ext X1 or Ext X10
Counterclockwise
Off
Chopped Blanking
A
Line +
Ac
2
Clockwise
Clockwise
5 mSEC
without front-panel Stability con-