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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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Power Functions ADAPTER for 9V Battery Use - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
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LEGO® Power Functions Rechargeable Battery Box 8878 | Other | Buy online at the Official LEGO® Shop US
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