Sunday 22 May 2016

DIY audio amplifier using lm386

In this post, we will make a diy audio amplifier using lm386.

LM386 is low voltage audio amplifier and it's gain is in the range of 20 to 200

Parts required:


  1. LM386
  2. Breadboard/ perfboard/ stripboard
  3. 10k pot
  4. 8 Ω speaker
  5. 9 volt battery
  6. 220 uF capacitor
  7. connecting wires
Circuit diagram:

fritzing circuit diagram audio amplifier
Circuit Diagram
In this circuit, pot of 10k is used for controlling the volume. Gain in this circuit is 20. You can also also power supply of 5 volt. This is the basic circuit having gain equals to 20 and there is no bass in this circuit. You can give audio input from mobile/laptop.

Hope you had enjoyed the tutorial.

Stay tuned for more updates !!






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