Tektronix 371B, Service Manual

Page: 209 / 292

Performance Verification
371B Service Manual
5-107
Figure 5-26: Setup for checking pulse form
2. Close the protective cover and set the HIGH CURRENT breaker to the
ENABLED position.
3. Set the collector supply VARIABLE control to 50 %.
4. Set the test oscilloscope time/DIV to 50
m
s/DIV.
5. CHECK that the half-amplitude pulse width is between 225
m
s and 275
m
s.
6. CHECK that the rise and fall time is between 40
m
s and 120
m
s from 10 % to
90 % of full amplitude.
7. Set the collector supply VARIABLE control to 5 % and test oscilloscope to
500 mV/DIV.
8. CHECK that the half-amplitude pulse width is between 150
m
s and 250
m
s.
9. Set the HIGH CURRENT breaker to DISABLED.
10. Disconnect the X1 probe.