5-tube set of 12BH7A vacuum tubes, ideal for audio equipment. - Model: 12BH7A - Quantity: 5 tubes - Brand: Toshiba - Model Number: 30-13200 These are from an estate and their operation has not been confirmed as there is no measuring equipment. The box appears to be sealed, and unopened. Only a photo of the outer box is available. Please understand and purchase accordingly. These are old items that have been stored at home for a long time. No returns accepted. 14