This RCA Electron Tube 6AF4A is a vintage piece of electronics that has never been used and is in pristine condition. The tube is a type of electron tube made by RCA and is perfect for vintage audio and video equipment. The model number is RCA 6AF4A which is known for its high quality and durability. This tube is a great addition to any vintage collection or for anyone looking to replace a worn out tube in their equipment. The brand is RCA which is a well-known and trusted name in the world of electronics. It falls under the category of Vintage Tubes & Tube Sockets, Vintage Parts & Accessories, Vintage Audio & Video, Vintage Electronics, and Consumer Electronics.