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Reply To: Electrical riddle no.5 – DC Control systems and polarity

#1182
JimmyDee

    I’ve never thought of this concept. I remember early on in the automobile when they were first adding electrical devices to them, a few had positive grounds. Probably didn’t take long for them to find the corrosive action, becaue of this configuration and negative ground became the standard world wide. Without this information you have posted, I would never have really know why. Thanks for sharing this. Sometimes we do things because its the way we have always done it. Now we can all know why. Jim