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Published on Mar 2, 2012
http://mrhmag.com: Kevin Rowbotham disects a 9 volt battery to get the connectors from it to use building an audible track short circuit detector. The audible detector beeps when it is connected to model railroad track with a short. Great for finding short circuits as you wire the track of your model train layout. This video is a companion to the March 2012 Model Railroad Hobbyist magazine. http://mrhmag.com