Fold all pins of all BC547 transistors as picture. BC547 Transistor (NPN ) - First pin is Collector. Second pin is base and Third pin is emmiter. Next we have to solder LED in transistor. Solder -ve ...

BC547 *2 5mm LED 100Uf Capacitor Resistor 10k *2, 330R *2, This project employs two BC547 transistors, which are NPN bipolar junction transistors (BJTs). These transistors are ideal for switching ...

Fig. 3: IR transmitter circuit The block diagram of the infrared interruption counter providing an overview of the system is shown in Fig. 1. The astable multivibrator produces 36kHz frequency and npn ...

Figure 3 shows the diagram of a simple common-emitter amplifier created with the newly imported BC547 transistor. In the same figure, there are two oscillograms relating to the input and output ...

Components Required: Transistor BC547 Bread Board 8ohm Speaker 100uF capacitor Power Supply Resistor 2.2k Aux wire or audio jack or MIC Connecting wire Jumper wire Circuit Diagram and Explanation: ...

Clap Operated Switch Circuit This circuit is built around timer IC 555 (IC1), CMOS IC 74LS93 (IC2) and five BC547 npn transistors (T1, T2, T3, T4 and T5). Transistor T1 is used as the pre-amplifier ...

This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...