How Do You Identify The Emitter, Base, And Collector Of A Transistor Using Analog Multimeter?
The base-emitter and base-collector junctions look like a pair of diodes joined together. In an NPN transistor, the base is both anodes and the emitter and collector are the cathodes; in a PNP transistor, the base is both cathodes and the emitter and collector are the anodes. And a diode, of course, will conduct in only one direction. You can identify the base this way, but finding out which is the emitter and which is the collector will require testing in an actual circuit (or with a transistor tester). It will not be damaged if you swap over the emitter and collector, but it will have *much* more gain the right way around!
