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haog131:我的PNV 740V用的空心巴伦,使用一段时间后测试发现馈线居然短路,于是拆下检查。发现是馈线接头短路了。重新接上14.27完全OK,但是7.050驻波大于3完全不行了。 (2012-05-02 09:45)
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