In the audio power amplifier, volume control is an essential part, especially now with the microcomputer-controlled, multi-channel AV amplifier, generally use more than one chip-channel volume control to adjust the volume, but according to the standard requirements: the volume for each channel need both the overall tone also require a separate fine-tuning. Pulse potentiometer can rotate 360 degrees, adjust the volume rate of programmable control, it is long life, does not produce noise, simple circuit, this is carbon film potentiometer can not be compared.

编码电位器怎么个编程.txt

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