This rare and valuable vintage audio tube is a quality product from Sylvania, a reputable brand known for producing high-end electronic components. Made in the United States, this particular vacuum tube, model VT-80, is new old stock (NOS), meaning it has never been used before and is in pristine condition. It is perfect for collectors and enthusiasts of vintage electronics who are looking to add a piece of history to their audio equipment. This tube is ideal for use in vintage audio amplifiers and other audio equipment that require vacuum tubes. Don't miss out on the opportunity to own this valuable piece of vintage audio history.