2-20 Watt Stereo Audio Power Amplifier by LM1875 This is a reliably high sound quality audio power amplifier project based on the National Semiconductor’s LM1875 IC. The circuit that we give is a similar form of the application circuit in the datasheet that NS provides. It is really easy to build and low cost. The voltage gain of the each monolithic channel is 27dB.

2-20 Watt Stereo Audio Power Amplifier by LM1875
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2-20 Watt Stereo Audio Power Amplifier by LM1875