2-20 Watt Stereo Audio Power Amplifier by LM1875
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Description:
Here 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 but you can change this value by
adjusting the resistors at the feedback path that connects the pin-2
and pin-4.
The supply voltage for the maximum power output (25 Watts) is +/- 25V.
It mustn’t exceed +/- 30V at any time. We recommend you to use metal
film resistors and electrolytic capacitors that are rated at 50V.
Read More Source: http://sound.westhost.com/project72.htm
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