LM386 based portable audio amplifier under $3

If you project needs small battery powered audio amp nothing beats LM386.  It can work with voltage as low as 3V (battery powered) and provided pretty loud yet good quality sound.  We are talking around <1 Watt of course, but it’s sufficient for most little gadgets and/or toys.

And best part you build one for under $3. Instructions, part list and video after the break.

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December 30th, 2012|diy|0 Comments