This post shows you how to make a Metal Detector Circuit using two BC547 NPN Transistor. This is a very simple circuit. The buzzer makes a sound as it moves the metal part near the …
This post shows you how to build a high power 5V Regulator using z44 Mosfet and BC 547 Transistor. The 5V zener diode used in it helps to get constant 5V. In this circuit, the …