(57) A method of manufacturing a slip ring including the steps of forming a body (2) of
plastics material, forming a plurality of grooves (6) in a surface of the body, treating
the grooved surface to allow a metal skin (7) e.g. copper, to be deposited thereon
by an electro-less plating process, electro-less plating a layer of base metal (7)
on the treated surface of the plastics material, including the grooves (6) formed
in the plastics body, removing the plated material (8) from between adjacent grooves
to define individual tracks of the slip ring and electroplating the plated material
to overlay the grooves only with a layer (9) of a noble metal e.g. gold.
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