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Building Instructions for a cable that connects LEGO Power Functions (PF) with Mindstorms NXT/EV3 - Christoph Bartneck, Ph.D.
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ABLEGRID 12V AC / AC Adapter For Lego Toy Transformer 70931 12VAC Power Supply Cord Cable PS Wall Home Charger Mains PSU - Walmart.com
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Amazon.com: 10V 700mA 0.7A Universal AC DC Adapter Charger For Lego Mindstorms EV3 NXT 45517 Power Supply : Tools & Home Improvement
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BrickLink - Part 70931 : LEGO Electric, Train Speed Regulator 9V (12 VAC) Power Adapter 120V 60Hz [Electric, Train] - BrickLink Reference Catalog
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