How to build the very popular tiny audio amplifier using IC LM386

Very popular tiny audio amplifier using IC LM386

One will wonder how these days this versatile tiny audio amplifier has been missed from the self built gadget. It is such an wonderful audio amplifier applying to any needs of audio amplifier circuit.. very tiny, compact, low cost but at the same time very versatile audio amplifier circuit. hence one should not miss this circuit in the personal shelf. you will get very clear sound using very little power.

Circuit description

Very popular single IC LM386 audio amplifier

Suitable for any common amplifier applications

Very compact 

Versatile

Inexpensive

Easy to build 

Parts list:

U1 -  IC LM386

R1 –  10K ohms  – Volume Control

R2 – 10 ohms – Resistor 

C1 – 10 MFD electrolytic capacitor

C2 – 100n capacitor

C3 – 220 MFD electrolytic capacitor

C4 – 47n capacitor

B – 12V Battery

SP1 - Speaker

PCB layout full view

PCB full layout

component placement 

PCB copper track

The PCB copper track can be printed on the copper clad board and etched. As the component count is less it is easy to assemble on this ready made PCB design.