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点评
好久不见大侠您露面了!新春快乐
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点评
4W输出则8欧姆端子上的电压约为5.66Vrms,输入灵敏度按照0.5Vrms计算则增益约11倍,那么反馈电阻取值应为1.2k~1.5k之间比较合适,怎么会用到3.3K?
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