This vintage audio tube is a Ken Rad Type 27, made in the United States. It is a great addition to any collection of vintage electronics and comes with metal plates, foil D getter, and is NOS tested to ensure strong performance. This tube is perfect for those who appreciate the sound of vintage audio equipment and want to add a unique piece to their collection. It is a great buy for anyone looking for a high-quality audio tube that has been well-maintained and preserved.