Below is the circuit diagram of a microphone audio amplifier using LM386 ic. This circuit amplify weak audio signal from an electret microphone and drive a small 4/8 ohm speaker or can be used as a pre-amplifier stage of an…

A detailed step by step guide to design a good power supply for your DIY electronic projects. The most important thing you need to consider while designing a power supply for your DIY Arduino project is the current and voltage…