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BG5EHX:挖一下,问大佬一个问题,修过的机子,校正时校不到位,S只能到069,Z只能到059,R88-90全都会调到头,这是不是二极管还没修好?[表情] 现在测50欧的标准负载是正常的,但是75欧的非标假负载就不对头了,12.5 .. (2013-02-24 00:30)
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BA7IA:''你所说的精密电阻箱只是在直流状态下呈现出是精密的电阻特性,但在高频下它们除了呈现出电阻特性以外,由于引线及周围元件的影响等,还会呈现有电容和电感特性,这样用于校准时, .. (2009-07-07 09:06)
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