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"The Battery Barn" – DC Component Tester
This simple device, made from household materials makes a perfect component tester for DC electronics! It's simplicity allows for easy modifications to fit just about any power output needs =D Materials: Cardboard Aluminum Foil Wire Pencil Test Batteries Wire Clippers / Strippers Duct Tape Xacto Knife Measuring Tape Glue Gun Rubber Band(s) -You may want more than one (Optional) Soldering Iron / Solder (Optional) Test Motor (Optional) Switch (Optional) .