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LM3914的4引脚和6引脚之间精密电阻电阻

Other Parts Discussed in Thread: LM3914

LM3914的4引脚和6引脚之间精密电阻电阻阻值,资料介绍应该是10K,实际测量11.4K左右,阻值相差太多这是为什么呢