2 RCA Raytheon 6SN7 GT Black Plates Audio Tubes 2875/2640 2575/252
$ 23.23
Description
2 RCA Raytheon 6SN7 GT Black Plates Audio Tubes ***** Tested on our new proprietary tester , the E3444 Triplett/Westmore 501 : It's 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 manufacturer's 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 manufacturer's specified test points or at other specified test points. ***** This tester was prepared by Mr. Paul Hart of Falls Church , Virginia. ***** ********************************************************************* Industry Bogey transconductance = 2600/2600 µ mhos & Industry Bogey plate current = 9.0/9.0 mA Results = 2875/2640 µ mhos ~ 10.7/10.1 mA 2575/2525 µ mhos ~ 8.0/8.1 mA USA Shipping $6 I have many other types of tubes ~ No Additional Shipping Charges All tubes Guaranteed 30 Days THANK YOU ! 332 ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirl's Guaranteed VintageTubes
