fischertechnik adapter for slewing ring and fslip ring

Slip ring for electrical contacts to allow for rotation.

On ebay:
12.5mm 6 Wires 6 Circuits 2A Compact Slip Ring Capsules 240V AC/DC 300RPM

You can finf others with 12 oder 24 wire conncetions on ebay.
6 is for a contruction toy a lot.


http://www.ebay.de/itm/131649897907

Feature:
The Capsule slip ring is a standard, off-the-shelf series product, that uses gold contacts at the rotary interface. Color-coded lead wires are used on both the stator and rotor for simplified electrical