Two vacuum tubes, 12AX7 and 12AX7A, made by Toshiba, ideal for Hi-Fi use. - Brand: Toshiba - Model: 12AX7 - Type: Vacuum tube - Application: Hi-Fi - Quantity: 2 tubes These are from an estate and their operation has not been verified 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. 24