Simple 5W Mono Audio Amplifier

This mono AF amplifier uses a single 5-pin LA4425A IC to deliver 5-watt output through a 4-ohm, 5-watt loudspeaker. The datasheet of LA4425A recommends a 13.2V power supply to get 5-watt output. A suitable heat-sink may be used for the IC for protection, especially if a higher voltage supply is used. The author’s prototype is […]

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