slip-ring, electric swivel / rotary joint
I am looking for a device that can transfer electric signals in a 360 degree rotation. 4 conductors. You commonly see it in the dollar-store for the phone adapters that stop a telephone cord from becomming spiral/corded onto itself - because it has disks inside with springs mounted to it to allow electrical flow while allowing rotation.
I need 4 conductors. Trying to build a small toy (it spins around, with lights that are controlled digitally - somewhat like a pan/tilt operation on a video- camera). The piece should cost just a few bucks.
Unfortunately, I cant seem to find anyplace that sells these - the ones I have found want to sell me something for hundreds of dollars that is some type of professional robotic grade.
If I managed to describe this well, I was wondering if anyone could advise or send me some links to try and check around, please thanks.
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