Tektronix Type 82 PLUG-IN Instruction Manual page 59

R356 c318
C328 C168 C167
pledt Se) C168
R392**
C524
ca77*
C456
C428
C418
Using the same oscilloscope sweep rates as those used
to obtain the oscillograms shown in Fig. 5-14 a, b and c,
examine the waveform displayed on your oscilloscope crt.
For a waveform 2 centimeters in amplitude, distortion should
not exceed —-1 millimeter, If the first 100-nsec-duration por-
tion of the front corner of the waveform is not within -1
millimeter of being square, adjust C417, C418, C456, C477",
C487 and R492** (see Fig. 5-13} for optimum squere corner
and amplitude level, The portion of the waveform that each
of these adjustments affects is given in Table 5-5,
Approx. Time Duration (as measured
Adjustment from the front leading corner)
C417 4 nsec
C418 60 nsec
; C456 8 nsec
Cé77* 100 nsec
C487 Ty 6 nsec
R492** Affects al! 100 nsec
29. Channel A X10 High-Frequency
Disconnect the output end of the 50-ohm termination from
INPUT B ond connect the output to INPUT A connector. Set
the MODE switch to A ONLY
If the waveform display does not have a square corner
which is within --1 millimeter as shown in Fig. 5-14 a, b
and ¢ (based on a waveform amplitude of 2 centimeters),
adjust C316, C318, C328, C356, C377*, C387 and R392**
(see Fig. 5-13) for optimum square corner and amplitude
level. Use various sweep rates to examine the waveform
from time to time to obtain best overall results, The Chan-
nel A high-frequency adjustments have the same effect on
the waveform as the corresponding adjustments did for
After completing this step turn off the calibrator. Dis-
connect the various items connected to the Type 82 and the
oscilloscope.
*Added in Type §2 Plug-in Units $/N 390 and up.
**Added in Type §2 Plug-In Units SN 361D-up.