RARE MATCHED PAIR OF EARLY 1955 BRIMAR 12AX7 CV492

RED PRINT GREY PLATE SQUARE GETTER

 2J5/573 AND 3J5/573  DATE CODES A WEEK APART FROM OCTOBER 1955

EACH TESTED STRONG AND WELL BALANCED 




AVO VCM163 TESTED




TUBE 1 - Ia  1.2/1.35                  gm  2.2/2.2

TUBE 1 - Ia  1.2/1.25                  gm  2.2/2.2






100% = Ia 1.2   gm 1.6




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