Two Matsushita-made 12AT7 vacuum tubes. I purchased these on Mercari and used them in a vacuum tube control amplifier. I'm selling them because I'm replacing my amplifier. I no longer have the corresponding model, so I can't confirm their operation, but they were working without any problems until now. In the unlikely event of a defect, I will accept returns. After removing them from the amplifier, I stored them at home. These are old products, so please understand the contents before purchasing. I will take great care in packaging for shipping. I am a non-smoker and do not have any pets. Please understand that these are used items.