Review on π Battery Power Supply Audio Mono Amplifier Module Board NJM386D LM386 by Louis Nakashima
Works as expected and has an on/off switch
A simple one chip amp works as expected and saved me the hassle of reassembling. I also like that there is an on/off switch. It also has a jumper selectable gain. It comes with 20x amplification, but as far as I remember there can also be 200x amplification. See the chip data sheet for details.
- Low Voltage Audio Power Amplifier Module based on NJM386D (LM386) chip.
- Doubtful
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