Thank you for viewing. Vacuum tube 12BY7A Toshiba 3 tubes, collector's item. Please check the product name, manufacturer, and condition in the photos. I read it from the label, but please forgive any discrepancies. There is no box. I haven't been able to confirm the operation, and it has been stored for a long time, so I don't know if it will work properly. Please consider it as a collector's item or junk item. There is no guarantee of operation. Therefore, "collector's item" is included in the product name. If you agree, please purchase.