Audio Amplifier Project Using LM386D

This project is a compact and beginner-friendly audio amplifier based on the LM386D integrated circuit. It is designed to amplify audio signals efficiently while providing simple configurability, making it an ideal project for students starting their journey into electronics.

Features:

• Power Supply: The amplifier is powered via the terminal block J2, supporting a voltage range of 4 to 12V DC, offering flexibility for different power sources.
• Audio Input: Audio signals are fed through the terminal block J1, ensuring a clear input connection.
• Audio Output: The amplified audio signal is delivered through the terminal block J3, ready to drive a small speaker or audio device.
• Adjustable Gain: The gain of the amplifier can be configured to either 20 or 200 by adding or removing the capacitor C1. This simple adjustment allows for experimentation with different amplification levels.

Educational Benefits:

• This project is perfect for students new to electronics, as it introduces essential concepts like:
• Audio signal amplification
• Component-level circuit configuration
• Understanding the functionality of the LM386D IC
• Basic PCB design and assembly

The project is compact, easy to assemble, and provides hands-on experience in building and testing an audio amplifier circuit. Whether you're a student or a hobbyist, this project offers a practical introduction to electronics.

Demo video: