Tektronix 2A61 Instruction Manual page 39

Calibration—Type 2A61
c. Set the front panel GAIN ADJUST control on the Type
2A61 for 5 divisions of display on the Type 561A CRT.
d. Remove the Special Input Cable from the Standard
Amplitude Calibrator.
Petaling ere | 9. Adjust Diff Bal and Int Diff Bal (Low 0
a
= i p
Frequency Common
Mode Rejection)
: -
a, Test equipment setup is given in step 8.
b. Set the Type 2A6] INPUT SELECTOR to CM.
Waukee ie
= -~ *
c. Set the Type 2A61 MILLIVOLTS/DIV to .05.
d, Set the Type 2B67 Time/div to 10 ms,
e. Adjust the front panel DIFF BAL control for minimum
fat amplitude on the Type 561A CRT.
9 Repeat steps e and f until the display amplitude is
Fig. 6-12. Location of INT DIFF BAL control,
minimum.
Maximum amplitude, not more than two divisions.
NOTES