Up for auction is this strong testing quad of Tung-Sol 12AU7/ECC82 audio vacuum tubes. All four tubes were tested on my TV-7 tester where 56 is the required minimum and all four tubes had no leaks or shorts. All four tubes would make a super nice addition to anyone's collection or to use either one. Please look at the pictures above for the test results as well as the overall cosmetic condition of each tube. Thanks For Looking! All International Shipping Will... Go Thru The Global Shipping Program, If You Do Not Like This Method Then Please, Do Not Bid!