Audio Circuits

See simple intercom circuit using transistors and a few parts. So easy build and cheaper than ICs. For a small home and learning. Read more

This is 2 watts + 2 watts Stereo small LM386 amplifier x3 ICs. It is cheap and easy to builds for BCL amplifier,mobile,MP3 player using 6V battery (AA x 4) […] Read more

This TDA2009 amplifier circuit can do stereo at 10W+10W or 18W BCL for 4-ohm load. It supports a wide range of voltages of 8V to 24V at 1-2A. Read more

Relatively easy to build up to 30W Amp OTL by TDA2030 transistor is packed into this project.the power dissipation of 20W at 8 ohm or 30W at load 4 ohm Read more

Good transistor audio amplifier circuit, at 40 watts OCL RMS using 2N3055+MJ2955 is easy to build,and very inexpensive. To use Power Supply +35V -35V 2A. Read more