Table 5-9: Collector High Voltage Measurement Accuracy - Tektronix 371B Service Manual

C6. Checking Collector
Current Measurement
Accuracy in High Voltage
Mode
371B Service Manual

Table 5-9: Collector High Voltage Measurement Accuracy

PEAK POWER HORIZONTAL
WATTS Setting VOLTS/DIV Setting
30 mW 10 V/DIV
3 W 50 V/DIV
Specifications:
H Cursor accuracy is less than 1.5 % of READOUT plus 10 % of HORIZON-
TAL VOLTS/DIV setting.
Equipment Setup. Set up the equipment as shown in the following illustration and
set controls as described.
371B Settings:
Initialize the 371B, then set the following control as indicated.
COLLECTOR SUPPLY
PEAK POWER WATTS
DISPLAY
VERTICAL
CURSOR
Mode
Test Equipment Settings:
VOLTAGE SOURCE
Mode
VOLTAGE SOURCE
Setting
90 V
450 V
371B
30 mW
1 mA/DIV
DOT
DC VOLTAGE
Performance Verification
HORIZONTAL
CURSOR Readout
87.7 V to 92.3 V
438.3 V to 461.7 V
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