This is a 4 transistor audio amplifier circuit. Which is a 4-transistors complementary push-pull amplifier, that shows the basics of audio amplifier design.
This is a small Stereo amplifier 3W + 3W using BA5406-IC. It use 12V power supply as source of this project. and use a few part so easy to build.
This is the HIFI power amplifier circuit using the popular TDA2003 IC from SGS Thomson. The normal operation of the integrated circuit,the music amplifier for car audio radio sound. Which it…
Simple A/D amplifier circuit!