BLACKBURN MULLARD 12AT7 ECC81 TUBE as pictured, circa 1960, VF3-series it's in good condition (tested on my tube tester, where NOS tube normal ranged 105-110, min-good=65, max-good=120, tested tubes = 107/108 respectively, no short no leak) since this item is highly “MISHANDLING SENSITIVE” it is intending for professional (whom who know it well) and this selling is final (no return or refund) Please buy or bid accordingly. Thanks for looking.