This Realistic 42-2101A Stereo Hi-Fi Preamplifier is a vintage gem that has been tested and works perfectly. It is a great addition to any vintage audio and video collection. The preamp is made in Japan and is designed to enhance the sound of your vinyl records. It is perfect for audiophiles who are looking for a high-quality and reliable preamp. The Realistic brand is known for its high-quality audio equipment, and this preamp is no exception. It is easy to use and provides a great listening experience. The model number is 42-2101A, and it is a type of stereo Hi-Fi preamp. It is sold without the box, but it is still a great purchase. See the pictures for more details.