Brand New, Single Tube 1974 Mullard ECC82 12AU7 MINT NOS NIB halo Getter with Amperex Label and Box. Etched Blackburn Production Date Codes Gf2 B473. Made in GT. Britain. Box is a bit fragile due to age.
Tested and matched on Dynamic Mutual Conductance Tester Hickok 600A. Brand new 12AU7 on this tester is rated tests between 1800-2200 mmhos depending upon the make, era, construction etc.
835 - Mullard ECC82 12AU7 Single Tube 1974 MINT NOS NIB Halo Getter Amperex Label. Blackburn GT. Britain - 1950-2000 mmhos
Price = $60 for the Single Tube as Shown.