What does "NPN" or "PNP" mean in terms of a transistor ... To confirm, you can use a multimeter to test the transistor. If the transistor isn't showing the correct voltages or resistances in its ...

The first transistor was about half an inch high. That's mammoth by today's standards, when 7 million transistors can fit on a single computer chip. It was nevertheless an amazing piece of technology.

This transistor switching circuit uses an npn transistor, a voltage divider (consisting of a \(5 kΩ \) resistor and thermistor) and a \(5 V\) power supply. Use the information in the table to ...