5 Watt speaker. The power amplifier circuit section is taken from the Texas Instrument’s LM386N datasheet. In the above image, we can see a screenshot from LM386N datasheet from Texas Instruments. The ...

[John] also used some more garden-variety op amps and the ubiquitous LM386N chip for audio amplification.

LM386N-1 and LM386N-3 have an operating supply range of four volts to 12 volts (maximum 15 volts) and LM386N-4 has an operating supply range of five volts to 18 volts (maximum 22 volts). Maximum power ...

[nickinoki] Made a light show using some amplifiers and an arduino. First he created a microphone circuit based around a LM386 Audio Amplifier. After amplifying the output of the microphone a ...