turntable - technical definition

A playback machine for vinyl phonograph records, which were a major music distribution medium throughout the 20th century. The turntable contains a rotating platter to hold and spin the disc and an arm that holds a cartridge and needle (stylus). The needle is a diamond chip attached to a metal cantilever that causes a coil or magnet to move inside the cartridge as it bounces along the sound wave undulations "carved" in the V-shaped grooves of the vinyl.

Records Degrade With Usage
A major problem with vinyl records is the wearing of the inner surfaces of the groove by the needle. Over the years, an enormous amount of mechanical engineering went into the design of turntables and needles that would track the grooves with as little pressure as possible.

Still Made
Analog turntables are still being made and used by people who have extensive vinyl record collections as well as by disc jockeys (DJs). See record player, LP, Laser Turntable, USB turntable and DJ turntable.