RARE PAIR OF MULLARD ECC83 12AX7 mC1

LONG PLATES SQUARE GETTERS

mC1 B7A AND mC1 B7H CODES - BLACKBURN JANUARY AND AUGUST 1957

IN NICE CONDITION NOT NOS VALUES IN ANY WAY  BUT SERVICEABLE TUBES NONETHELESS



AVO VCM163 TESTED




TUBE 1 - Ia  1.2/0.8          gm 1.2/0.8

TUBE 2 - Ia  0.7/1.2          gm 0.8/1.6




 



100% = Ia 1.2   gm 1.6




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