LOOKING FOR A SOURCE FOR A CUSTOM, MINIATURE SLIP RING. SLIP RING HAS 74 CIRCUITS, POTTED CONNECTORS AT BOTH ENDS, A SWIVEL GAS JOINT GOING THRU IT, AND ROTATES A FULL 360 DEGREES. NEEDS TO SURVIVE MILITARY ENVIRONMENTS - NO FERRIS WHEEL SLIP RINGS. ANYBODY KNOW ANY GOOD SOURCES?