3 Fisher Mullard 12ax7 Vacuum Tubes as pictured.

Tested on THE E3444 Triplett .

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 =   
                                                          
                                                  
                                                  1345/1610µmhos & 1.66/1.28mA    
                                                 1650/1400µmhos & 1.69/1.04mA
                                                1355/1610µmhos & 1.66/1.28mA


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