CHAPTER 4 ■ DIGITAL MULTIMETERTransistor
A transistor mode measures the hFE (or b), which indicates the amount of amplification or gain of a transistor.
The bipolar type of npn or pnp is usually determined by the user inserting the transistor into different socket
holes (see Figure 4-9). You can use the multimeter’s diode feature to determine bipolar transistor types if
the multimeter doesn’t have this transistor-test feature. See Chapter 16 for detailed steps on testing with a
transistor socket or diode feature.
Figure 4-8. Dial simplified because of autoranging
Figure 4-9. Transistor test socket