Specifications
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
Schematic
Parts List
Inputs - Outputs configuration
PCB
Source: Electronics Lab
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