2 Vintage Matched JRC RCA 12AU7 ECC82 Black Plates D Getter 1956 Vacuum Tubes
$ 31.15
Description
2 Vintage Matched JRC RCA 12AU7 ECC82 Black Plates D Getter 1956 Vacuum Tubes **Very 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 µ mhos & Industry Bogey plate current = 10.0/10.0 mA Results = 2170/2150 µ mhos ~ 11.6/12.0 mA 2150/2060 µ mhos ~ 11.7/10.4 mA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ USA Shipping $6 ~ Higher Overseas I have many other types of tubes ~ Just Search MY store No Additional Shipping Charges *** All tubes Guaranteed THANK YOU 202 ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirl's Guaranteed VintageTubes
