SparkFun Solder Off – YouTube Posted on December 29, 2017 by administrator Spread the love Solder-Off! Four of SparkFun’s faces square off to see who’s got the best iron chops. SMC Challenge kits graciously provided by Drew Fustini of OSH Park. Rate this item:1.002.003.004.005.00Submit Rating No votes yet. Please wait... No related posts.