Chief engineer
Shure engineers introduced several key phono cartridge design concepts. Chief engineer Ralph Glover discussed the pickup design relationship to record wear in a 1937 article in "Electronics" magazine entitled "A Record-Saving Pickup". Glover developed the "needle-tilt" principle with the assistance of fellow Shure engineer Ben Bauer, and considerations of needle angle, record wear, and fidelity were an integral part of Shure's cartridge designs. In 1966, chief engineer Jim Kogen published a research paper entitled "TRACKability" in "Audio" magazine, defining the concept as the ability of a cartridge to maintain contact with a record groove through any modulation.