I purchased this on Mercari and have been using it. The print has come off, but it is a NEC 12AU7. I am selling it because I have gotten rid of the amplifier I was using it with. It was working without any problems, but I no longer have any equipment to test it. In the unlikely event of a problem, I will accept returns. I will put it in the white box it came with when I purchased it and pack it with bubble wrap for shipping. I am a non-smoker and do not have any pets. Please understand that this is a used item. The following is the comment from the seller at the time of purchase. For your reference. Vacuum tube 12AU7 NEC 3 tubes Power-on check with TV7D/U 76/50 (~99%) 76/50 (~99%) 76/50 (~99%)