Audio Amplifier using LM386

Audio amplifier using LM386 is a power amplifier designed to be used in low voltage consumer applications. Typical applications are like portable AM/FM amplifier, TV sound systems. It requires minimum external parts and operate from wide range of voltage starting from as low as 4 volt.Below is the version of the circuit designed by me in one of my projects. It has a Gain of 50 with Bass boost.

LM386Amplifier

Part list for the amplifier are as follows:
1. C1 – 100 µf
2. C2 – 10 µf
3. C3 – 0.01 µf
4. C4 – 0.1 µf
5. C5 – 0.01 µf
6. C6 – 220 µf
7. R1 – 10 K
8. R2 – 1.2 K
9. R3 – 10
10. VR1 – 10 K
11. 9 volt Battery
12. IC – LM386
C3 and C4 can be replaced by 0.05 or 0.047 µf capacitor.
This amplifier is ideal for iPod and cell phones and can be assembled in small box.

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