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Published on Mar 2, 2009
After getting this second bridge a year later, I now know that there are two versions of this bridge—an early and late version. Fortunately I assembled the later version first so that I know how to retrofit the electric switching to micro switches, instead of a Mickey Mouse flopping-around brass leaf switch which had no hope of working. The older version uses a 6-Volt motor, the newer, a 12-Volt motor.
For some reason my camera added a low frequency fluttering sound when the bridge is moving upward. This sound is not there in real life.