RARE MATCHED PAIR 6V6G MULLARD TUBES KT61 CV509 BLACK GLASS ENGLAND test NOS

RARE MATCHED PAIR 6V6G MULLARD TUBES KT61 CV509 BLACK GLASS ENGLAND test NOS
RARE MATCHED PAIR 6V6G MULLARD TUBES KT61 CV509 BLACK GLASS ENGLAND test NOS
RARE MATCHED PAIR 6V6G MULLARD TUBES KT61 CV509 BLACK GLASS ENGLAND test NOS
RARE MATCHED PAIR 6V6G MULLARD TUBES KT61 CV509 BLACK GLASS ENGLAND test NOS

RARE MATCHED PAIR 6V6G MULLARD TUBES KT61 CV509 BLACK GLASS ENGLAND test NOS
Have black glass and bottom foil getter. I have tested the tube on my TV7, tube test 76 and 82 were 46 is good or 65%.
RARE MATCHED PAIR 6V6G MULLARD TUBES KT61 CV509 BLACK GLASS ENGLAND test NOS