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BrickLink - Part 2868b : LEGO Electric, Train Speed Regulator 9V [Electric, Train] - BrickLink Reference Catalog
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BrickLink - Part 70928 : LEGO Electric, Train Speed Regulator 9V Power Adapter 230V 50Hz (Continental European) [Electric, Train] - BrickLink Reference Catalog
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LEGO® Power Functions IR Speed Remote Control 8879 | Other | Buy online at the Official LEGO® Shop US
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BrickLink - Set 4548-1 : LEGO Transformer and Speed Regulator [Train :Supplemental:9V] - BrickLink Reference Catalog
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