Voltage input and output on 9v train regulator - LEGO Train Tech - Eurobricks Forums
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power functions - What is the correct input voltage for the 9v Lego train speed regulator? - Bricks
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Electric, Train 9V RC Train Remote Control, Dark Bluish Gray Bottom, Yellow Buttons : Part 40529c01 | BrickLink
Transformer and Speed Regulator : Set 4548-1 | BrickLink
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Lego 9V Train - Transformer to Track Cabling Alternatives? : r/LEGOtrains
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Sheepo's Garage: Tips and Curiosities: Power Functions
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LEGO PART 2868b Hub / Controller, Train Speed Regulator 9V | Rebrickable - Build with LEGO
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