DIY Mini Amplifier Using TDA2822

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Introduction: DIY Mini Amplifier Using TDA2822

Building a homemade amplifier using TDA2822

Follow the steps here or watch the video to make your own amplifier

Step 1: Things Required

1. 10k Potentiometer

2. 100uF / 16 volt Capacitor

3. TDA2822

4. 10 Ohm Resistor (3)

5. 0.1uF Ceramic Capacitor (2)

6. 0.01uF Ceramic Capacitor

7. 10uF / 50 Volt Capacitor

8. 3.5 mm Male & Female Jack

9. Switch

10. USB Cable

11. PCB Board, Wires, Battery

12. Soldering Rod. Soldering Wire & Soldering Paste

13. Enclosure for Amplifier

14. Insulation Tape & Scissor

Step 2: Circuit Diagram & TDA2822 Pin Configuration

Step 3: Construction

Make all the necessary connection according to the Circuit Diagram as shown in the previous step

Step 4: Finished Images

Enjoy Making !!!

To watch the testing video CLICK HERE

Testing begins @ 5:27

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10 K Potentiometer - http://amzn.to/29WwHcH

Capacitors, Resistors & Other items - http://amzn.to/29Y2GY4

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    17 Comments

    What is the approximate cost? Where were the parts sourced from?

    I have put buying inks in the last step. The approximate cost would be 2 to 3 dollars.

    This is a great amplifier? What are the output watts?

    Since this is a Bridge Amplifier design the output you can get around 2 watts

    Well... it could be a bridged amplifier... except the input of one of the amps is grounded, so only 1 amp in the chip is active! To make it a bridged amp, you'd have to unground pin 6 and feed an inverted copy of the input signal to pin 6.

    The way this amp is designed, half of the amp chip is wasted.

    Yes this is a bridged amplifier.

    "The way this amp is designed, half of the amp chip is wasted" - This is not the case, The bridge amplifier has high output power whereas in the stereo design the output power will be less.This is the reason i have showed the bridge design