Matched Pair of Telefunken 12ax7 Ecc83 Vacuum Tubes as pictured 

Tested on THE E3444 Triplett , Prepared by Mr. Paul Hart of Roswell Georgia.

This tester NOW provides Industry Standard Results , NOT Proprietary results. 

These numbers were utilized by all the Vintage Tube Manufacturers.

Industry Transconductance Bogie = 1600/1600µmhos

         Industry Plate Current Bogie = 1.2/1.2mA

                                             Results =   
                                                          
                                                     1330/1245µmhos & .90/.82mA
                                                    1230/1210µmhos & .90/.83mA   
                                                     
                                             
                                              

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