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A bipolar junction transistor (BJT) has three regions, of which the emitter and the collector are made of the same type of semiconductor (‘n’...

If your car has an FM radio with stereo output but no inbuilt cassette player, this circuit will come handy for listening to your...

Here is a simple non-contact AC power monitor for home appliances and laboratory equipment that should remain continuously switched-on. A fusefailure or power breakdown...

From understanding basic circuits to creating complex circuits, from analog to digital circuits, from designing circuits on PCs to circuits analysis, these free ebooks...

Very often when enjoying music or watching TV at high audio level, we may not be able to hear a telephone ring and thus...