The Hitachi HT-21 is a vintage turntable that was part of Hitachi's lineup in the 1970s. It features a direct drive mechanism, which provides consistent speed and precision for vinyl playback. The design incorporates a solid wooden cabinet that enhances aesthetics while providing stability. The turntable is equipped with a high-quality tonearm that supports a variety of cartridge types, making it versatile for different listening preferences. The HT-21 utilizes a heavy platter that contributes to its rotational stability, minimizing vibrations during playback. Additional features may include adjustable tracking force and anti-skating controls, which allow for fine-tuning of the playback experience. This model of turntable is appreciated for its build quality and sound reproduction capabilities, appealing to collectors and enthusiasts of analog audio equipment.