RCA 5963 12AU7 Black Plates D-Getter Vacuum Tube 1952
$ 22.18
Description
RCA 5963 12AU7 Black Plates D-Getter VACUUM Tube ~~ 1952 Strong & Balanced ************************************************* **** 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 = 2200/2200 Β΅ mhos & Industry Bogey plate current = 10.0/10.0 mA Results = 2460/2570 Β΅ mhos ~ 13.4/14.3 mA Unlimited combined Shipping USA $6 ~ Higher Overseas All tubes unconditionally Guaranteed Thank you π π π π π π π π π π π π π π π π π π w6 . ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirl's Guaranteed VintageTubes
