This vintage audio tube is a must-have for any music enthusiast. Made by renowned brand TELEFUNKEN in Germany, this ECC83 tube is perfect for amplifying your sound to the next level. Tested on AVO160, it promises to deliver high-quality performance and reliability. Ideal for Preamp Tubes, this unit is a rare find and belongs to the Vintage Tubes & Tube Sockets category. It is also a valuable addition to Vintage Parts & Accessories, Vintage Audio & Video, Vintage Electronics, and Consumer Electronics categories. Get your hands on this impressive piece and enjoy an unmatched audio experience.