Home Projects Audio Tiny audio amplifier using LM386


Tiny audio amplifier using LM386
author: Rajkumar Sharma



The Tiny Audio Amplifier kit is a good choice for battery operation.  It is based on LM386 IC.

  • Power supply - 6 - 12 VDC

  • Output power - 1 W, 8 Ohm

  • The quiescent power drain is only 24 mW when operating from 6 VDC

  • Self-centering output quiescent voltage

  • Onboard PRESET to adjust volume

  • Terminal pins for connecting power supply, audio signal and speaker

  • Power-On LED indicator

  • ON/OFF PCB mounted slide switch for power supply

  • Four mounting holes of 3.2 mm each

  • PCB dimensions 44 mm x 44 mm




Parts List


Inputs - Outputs configuration





Download this circuit in PDF




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