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Dumont 6BQ5 EL84 Stereo Tube ************************************************************************ Tested on our new proprietary tester , the E3444 Triplett/Westmore 501 : Its a Triplett 3444 / Westmore 501 that has been enhanced. This tester uses regulated power sources for the bias, plate, & screen voltages, as well as modified operating & testing procedures. Filament voltage is also controlled. Tubes are tested in accordance with the manufacturers specifications; measurements closely align with a laboratory tester built to rigorously measure vacuum tube characteristics. Tubes can be accurately matched for gm & plate current at the manufacturers specified test points or at other specified test points. ***** This tester was prepared by Mr. Paul Hart of Falls Church , Virginia. ***** Industry Bogey transconductance = 11,300 mhos & Industry Bogey plate current = 48 mA Results = 10,700 µmhos ~ 46 mAUSA Shipping $6 I have many other types of tubes ~ No Additional Shipping Charges All tubes Guaranteed Thank you! 315~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes