Amperex  7025 Tube 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 =   

                                                          

                                                    1610/1465µmhos & 1.07/.91mA

                                                   

                                                    

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