Put this Stylus on a Signet 1EA cartridge. The side walls of this stylus are thicker than the original Signet so I had to reverse the screws that hold the cartridge to the head shell. I couldn't get the stylus to seat correctly and thought I'd got an incompatible stylus until I realized the cartridge mounting screw were the problem. All that said I'm extremely pleased with the sound and performance of this Stylus!