This is a simple audio amplifier circuit using an LM386 integrated circuit. It can amplify the audio sound provided by a Simple Microphone.
This circuit can be used for many applications such as intercoms, radio amplifiers, portable music players, Ultrasonic drivers, Television sound systems, etc.
This circuit does not need expensive components also, low power operated is needed for working.
| Identifier | Component | Value | Count |
|---|---|---|---|
| Mic1 | Condensor Mic | -- | 1 |
| U1 | Integrated Circuit | LM386 | 1 |
| SP1 | Speaker | 8 Ohm | 1 |
| C1, C4 | Capacitor | 10uF | 2 |
| C2 | Capacitor | 220uF | 1 |
| C3 | Capacitor | 0.02uF | 1 |
| C5 | Capacitor | 0.1uF | 1 |
| R1, R2 | Resistor | 10K Ohm | 2 |
| RV1 | Potentiometer | 100K Ohm | 1 |
You can power up this circuit using a 5V - 12V battery or power supply.
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LM386 Low Voltage Audio Power Amplifier IC 
