A pick up cartridge 1, wherein the support member abutment means comprises an annular shoulder in the cavity formed by the interface between two different diameter portions thereof, and the sleeve member abutment means comprises {HEAD ~ a mating shoulder} formed by {TAIL ~ the interface} between two different diameter portions thereof 
A pick up cartridge 1 , wherein the support member abutment means comprises an annular shoulder in the cavity formed by the interface between two different diameter portions thereof , and the sleeve member abutment means comprises { HEAD ~ a mating shoulder } formed by { TAIL ~ the interface } between two different diameter portions thereof
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