22 Watt Audio Amplifier

  
The 22 watt amp is easy to build, and very inexpensive. The circuit can be used as a booster in a car audio system, an amp for satellite speakers in a surround sound or home theater system, or as an amp for computer speakers. The circuit is quite compact and uses only about 60 watts. The circuit is not mine, it came from Popular Electronics.
22 Watt Audio Amplifier - schematic

# The circuit works best with 4 ohm speakers, but 8 ohm units will do. # The circuit dissipates roughly 28 watts of heat, so a good heatsink is necessary. The chip should run cool enough to touch with the proper heatsink installed. # The circuit ope



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