Transistor Type NPN/PNP Tester Circuit
Now knowing the feet of transistors do not need hard and must use complicated equipment, just with a simple circuit is easily made decisive feet PNP or NPN transistor complete with Base, Collector and Emitter its.
The principle works only utilize reinforcement (high-gain amplifier) that make LED lights up blinking. The trick disconnect one of transistors and then step on the of
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