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where the top sprocket is the sun
Spintronic junctions allow the current to branch
The Spintronics Power Pack gives you parts to charge your circuits with more power: an additional 6 V battery and two low-value resistors
These junctions use a planetary gear arrangement
Turing Tumble Marble Reloader spin where the top sprocket isThis tool makes it easy to pick up marbles from the bottom of the board and reload them back on topespecially if you have adult sized fingers! The end of the tube with the rubber band is for picking up the marbles. The other end of the reloader fits in the funnel. Just press the button to release the marbles, loading them into the top of the board.
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