Tektronix 1A5 Instruction Manual page 29

Fig. 2-15. Voltage divider for Example 4.
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Operating Instructions — Type 1A5
A INPUT
В INPUT
DISPLAY
a. Perform the STEP ATTEN BAL adjustment as outlined
in front panel adjustments.
b. Place the VOLTS /СМ switch to 20 mV.
c. Set the oscilloscope Cal Out control to 5 volts.
d. Using the POSITION control, set the trace to DC zero
reference.
e. Simultaneously place both AC-GND-DC switches to
DC. Adjust the oscilloscope triggering controls if necessary
to obtain a stable waveform.
f. Measure the waveform amplitude.
to the difference between the two input waveforms —
approximately 50 mV. (This is the amount dropped across
the 1 kΩ resistor.)
Connected to Cal Out
through a BNC T
connector.
Connected to junction
of 1 kΩ and 100 kΩ
resistor.
A-B
It will be equal
2-21