Set of 3 12AU7A and 12AU7 vacuum tubes, made in Japan. - Model: 12AU7A x 2, 12AU7 x 1 - Country of Manufacture: Japan - Quantity: Set of 3 These are from an estate and their operation has not been confirmed due to the lack of a measuring instrument. They are being sold as-is. Please check the condition in the photos. Please understand and purchase accordingly. These are old items that have been stored at home for a long time. No returns accepted. 10