You are purchasing a vintage Hammond 12AU7A vacuum tube, made in the United States. This single tube comes from a working Hammond Organ, making it a valuable find for collectors and enthusiasts of vintage audio equipment. Known for its high-quality sound and durability, the Hammond brand is highly regarded in the vintage electronics community. This particular tube is a rare gem that can enhance the sound of a vintage organ or amplifier, adding a touch of nostalgia and authenticity to any audio setup. Please check out our feedback and buy with confidence.