Distortion is acceptable at around 0.2% (at 125mW for the LM386, or at 2W for the LM380). None are anything special, and they are fairly low power (the LM386 is only rated for 300mW into 8 ohms). The National Semiconductor LM386, LM380 and LM384 ICs have been with us for a long time, and are well suited to simple projects that can be up and running in an afternoon. Uses range from signal tracers, workshop monitor amps (to listen to distortion residuals for example), or just a simple project for the fun of it. It usually won't need to be anything special, but it will usually have to be cheap and easy to build. ![]() ![]() Every so often, you'll find a need for a low power amplifier.
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