Introduction: Portable Phone Speaker (LM380)

This portable phone speaker uses a LM380 amplifier chip and some other basic components. It's not hard to build and the result is a powerful and practical custom speaker that's compatible with any device that outputs audio via a 3.5mm jack.

Written tutorial -

Amplifier schematic -

LM380 datasheet  -


Basquer (author)2013-07-12

Hello x2Jiggy: Can you tell me what software did you use for designing?? Thank you in advance!

About This Instructable




Bio: A tech and gadget enthusiast who enjoys building and creating DIY projects. Check out my projects and tutorials on Instructables and!
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