- 1). Turn the multimeter on. Set it to read HFE by turning the function selector knob.
- 2). Find the pin arrangement on the data sheet of the transistor you want to test. Insert the base, collector and emitter pins in the corresponding NPN transistor socket on the multimeter. If you don't have a data sheet, rearrange the pins in the socket until you find the right combination. When you have the right combination, you should see a positive HFE reading on the multimeter display.
- 3). Read the measured HFE on the multimeter display. Try different transistors and compare the results. Two transistors of the same kind may have different HFE measurements.
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