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= Transistors = == [this section needs expanding. I would write the whole thing except that I don't have a way to put up pictures yet.] == == What do transistors do? == In short, transistors act as switches. If you apply voltage to the base, current will be able to pass between the collector and the emitter. == NPN and PNP == NPN and PNP transistors work on the same principles, except that they are polar opposites. When you compare the two, the direction of current flow switches at every terminal. == Types of Transistors == Bipolar MosFets? JFets Tubes or Valves These aren't really transistors, but they work similarly. I would rather a separate page on tubes be made. |