For example, you can insert a resistor, a capacitor, an inductor, a diode, or a transistor and get a readout of which pin is which. It seems like magic, but [Andreas Spiess] did the research on ...

The transistor is considered to be one of the most important inventions of the 20 th century because of its abundant use in most modern circuits and electronic systems. NPN and PNP are the two ...