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Build a Great Sounding Audio Amplifier (with Bass Boost) from the LM386
Universal Line Audio Amplifier
Hypex Presents New Nilai500 DIY Audio Amplifier Module | audioXpress
30W Power Audio Amplifier Circut
6 Watt Hi-Fi Audio Amplifier Circuit using TDA2613
How to Make a Simple Amplifier Circuit without IC
Audio Electronics: Testing a Tripath Power Amplifier | audioXpress
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Audio Amplifier Circuits
50W DIY Hi-Fi Audio Amplifier with Protection Circuitry - Gadgetronicx
Amp Camp Amp – diyAudio Store
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diyAudio - My DIY projects
Miniature Audio Amplifier Circuit
Build Your Own Professional-Grade Audio Amp on the Sort of Cheap - IEEE Spectrum
DIY Compact Stereo Amplifier : 11 Steps (with Pictures) - Instructables
