Trying to find Slip Ring

JimboZA:

AWOL:
For light-duty stuff, 3.5mm or quarter-inch jacks can be useful.

Could you explain that one please?- maybe a sketch or photo?

Jim

Well a 1/4" stereo phone plug and jack would give you three circuit connections that is free to rotate when plugged into it's matching jack.
http://www.parts-express.com/images/products/standard/092-0124_s.jpg

Lefty