I've only done 2 builds. Back when I was an early teen. I bought 2 of those light kits that made lights flash in time with the music. The instructions were a little fuzzy concerning the orientation of the rectifier. I put it in the way it looked good to me, but when I first went to turn it on, it blew up in a pile of smoke. The second one, I turned it around and it worked just fine.

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