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This is a video on How I Built an HO Scale Slot Car Magnet Matcher and Shoe Tension Reader

We get asked all the time what are the different sizes? In this video, I

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what is a 3 slot graphics card SLOT CARS & RACING! 132 143 & HO scales! This spot is for our slot cars & racing, Me and my Sister do battle and race 132 143 & HO scale,