General integrated amplifier circuit external components and need more larger heatsink. This paper presents a simple amplifier circuit, made easy. TDA2822 amplifier integrated circuits used in music players, portable DVD and other audio playback; power is not great but you can satisfy the requirements of the hearing, and the circuit is simple, good sound quality, wide voltage range of characteristics such as the amateur production Small amp better choice.
This is a small amplifier using TDA2822 chip. Including volume control. A 12 volt power supply is ideal for supply, which can be a source with batteries or transformer. It is not necessary to use heat sink.
Circuit audio amplifier in bridge (bridge) using the ic tda2822 with volume control – 2 watts
Printed circuit board for mounting the amplifier tda2822 1:1
For a stereo version is only set up two identical circuits, and a dual pot to adjust the volume.
List of components for assembly of the amplifier tda2822
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