A projector can prevent a flicker from being caused by rotation of a rotating phosphor plate. The apparatus employs a wire that is optimized for strength, an electrode optimized for biocompatibility, and a termination sleeve with a closed distal end for coupling the wire to the electrode, while eliminating the potential for galvanic corrosion, enhancing weld quality, and facilitating manufacture of the apparatus. The vent opening is free of any projection of substantial length extending inwardly from any inner edge. ATM VCCs which comprise the AAL2 path group are transported on a virtual path together with ATM VCCs of a different type.