Audio amplifier using LM386

Description: The LM386 is an audio amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200.

You can use this useful audio amplifier for following applications:

  • AM-FM radio amplifiers
  • Portable tape player amplifiers
  • Intercoms
  • TV sound systems
  • Line drivers
  • Ultrasonic drivers
  • Small servo drivers
  • Power converters

This audio amplifier module can be used to play your FM receiver kit, make infrared based music transmitter and receiver, etc.

DOWNLOAD THE DATASHEET OF LM386

Project on mini breadboard:

LM386audio-amplifier1

IMG_0205

Schematic:

audio-amplifier1

A low cost LM386 based Audio Amplifier is available on www.buildcircuit.net. You can use the amplifier module for your project.

Audio amplifier

try this also

WATCH THE VIDEO OF AUDIO AMPLIFIER: 

In this video, I have plugged in a simple FM receiver kit. The audio amplifier amplifies the sound of FM receiver.

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