AMPEREX 6227/E80L, PQ GOLD PIN, TUBE PAIR (2) TEST NOS, MADE IN HOLLAND 1961, NOS, NIB

 THE TUBES HAVE  BEEN TESTED WITH  HICKOK 536 AND MERCURY 1200 MUTUAL CONDUCTANCE TUBE TESTERS.

 AND TEST:  1.  104%/104%

                     3.  104%/104%

                         WITH 100% BEING NOS.

         THE TUBES HAVE MATCHING CODES OF   V D 4   MADE IN 1961

                                                                                 < 1 A 4      <  =  HEERLEN HOLLAND.

 A DIFFICULT TO FIND EARLY MATCHING PAIR.

 THE TUBES HAVE ALSO BEEN TESTED FOR GAS AND SHORTS.