Tektronix CURVE-TRACER 576 Instruction Manual page 51

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Operating Instructions-Type 576
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Some Common Measurements
To measure Zener voltage or reverse current, put the cathode of the diode in the emitter
terminal of the test socket and the anode of the diode in the collector terminal. Apply
voltage to the device with the VARIABLE COLLECTOR SUPPLY control. For a more
accurate measurement of Zener voltage, see steps 42 through 46 of the First Time
Operation instructions. For measurements of small amounts of reverse current, set the
MODE switch to LEAKAGE (EMITTER CURRENT).
Current and voltage in the forward direction are measured in the same manner as in the
reverse direction except that the POLARITY switch is set to +(NPN). For a display of
currents and voltages in both directions, set the POLARITY switch to AC.
TUNNEL DIODES AND BACK DIODES
Required Type 576 Control Settings
Control Required Setting
COLLECTOR
PEAK POWER WATTS Less than maximum power rating of device
POLARITY +(NPN)
Terminal Selector EMITTER GROUNDED
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IF vs. VF
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