ECC32 MULLARD

MADE IN ENGLAND 

1185-EO FACTORY CODE (VERY FAINT TO LEFT OF ECC32 LABEL)

TEST:

OVER 100% MICROMHOS OR GM @ 2.5MA/V; 2.6MA/V , BOTH TRIODES. NOS IS 2.3MA/V

THIS MEANS THE TUBE IS VERY GOOD WITH REGARD TO STRENGTH AND TUBELIFE.

EMISSION IS PERFECTLY MATCHED AT 80% , BOTH TRIODES : 4.8MA; 4.8MA.  NOS IS 6.0 MA   

THIS TUBE'S EMISSION IS LOWER THAN NOS VALUES BUT STILL USABLE FOR DESIGNER SPECIFICATIONS.  MANY OLDER POST WW2 VINTAGE  NOS TUBES CAN HAVE LOWERED EMISSION LEVELS WHILE STILL HAVING 100% VALUES FOR TUBE LIFE.

NB: small black deposit on inside crown of glass, probably a getter flash deposit; non functional

TEST RESULTS ARE POSTED ON THE TUBE; PLEASE SEE PICTURES

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