The Yamaha YP-D 51 is a direct drive turntable that was popular in the 1970s and is recognized for its sturdy construction and good sound quality. It features a quartz-locked speed control system which helps maintain accurate playback speeds. The turntable is equipped with a heavy platter that reduces vibrations for improved audio fidelity. It offers a range of adjustments including tracking force and anti-skate settings, allowing for a customizable listening experience. The YP-D 51 typically includes a standard 1/2 inch cartridge mount, making it compatible with a variety of phono cartridges.