This cartridge has been fully restored by our senior consumer electronics technician. It is spendy because they are long since out of production so due to demand of those before you, our senior tech had to develop a repair bench jig to safely open the cartridge by drilling out the rivets. Next is full disassembly followed by removing all tarnish which has destroyed electrical conductivity over the decades. Then, the tech's secret sauce is applied to internal contact points to restore and maintain electrical conductivity of all internal electrical junctions which is an upgrade over what the factory did, which is nothing so oxidation destroyed all contacts. Next rubber parts are rejuvenated followed by testing and QC and lastly is final assembly by installing new rivets followed by final retesting.
Mounted, is an all speed 644-DeS73 needle while supplies last. This USA made exclusive offering has an elliptical diamond LP tip for noticeably greater fidelity vs. the original conical needle supplied when new. BLISS™ is the only lab that is restoring these cartridges. Purchase of this pickup in N.O.S. condition for your RCA player from any other source will likely result in cartridge failure.