自制LED筒灯测试器，提供接线柱和插座2种连接方式

需要如下配件

土八热熔螺母 M3*5*4 6颗

M3螺母 4颗

M3螺丝 10颗

电器：导线 若干，红黑黄多色

数字式交流电压电流表

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AC电源插座

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AC电源卡扣式插座

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音箱接线口

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双卡位双刀双掷开关

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单联船型开关

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