![]() For proper operation of the transistor, A fixed DC voltage is required. Supplying a proper DC voltage to the transistor is known as the biasing of transistor. The maximum current gain of this transistor is around 800. The current flowing from base to the emitter controls the current flowing through the collector.īC547 is usually used for amplification and switching purposes. In transistors, a small amount of current at the base terminal controls a larger amount of current at the emitter and collector.īC547 has three terminals as in other transistors. ![]() The use of a transistor is to transfer the resistance. The word transistor means of two words, transfer and resistor. It is widely used for power amplification and switching. Bc-547 is an NPN bipolar junction transistor(BJT). Depending the resistors and capacitors you use, you can chanche the frequency from switching the Base.Here are the Top 5 DIY bc547 transistor project for you. In my prototype board the holes are to far away from eachother, so a chip won't fit in it. This is a little bit heavier to make, because you also need a few more resistors and a capacitor, and a good prototype board. Here the NE555 timer switches the Base on and off, so you're sure that it's really working. If you want to make it more advanced, I put another schematic in the pictures selection. If you made everything just like the schematic, you're ready to test your tester! Take the three transistor leads, bend them a little and put the Base to the middle pin and the Collector and Emitter to the other pins. ![]() Take 3 pieces of wire which stick out the circuit board, where you put the transistor leads to it. Make the schematic and solder everything together. In this instructable I show you how to make a transistor tester which shows you if the 3 pins are still working, and if they don't have a deffect. ![]() If you put an electronic signal on the Base, the switch is open and electricity can flow through the Emitter and the Collector. ![]() Actually, a transistor is just nothing more than a tiny switch, which you don't controll with your finger, but with an electronic signal. Are you going to make a project, and find a transistor anywhere and you're wondering if it does still work? You can test it with this transistor tester.įirst it's helpfull to know how a transistor works. In this instructable I'm going to show you how to make a transistor tester. ![]()
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