Matched Pair RCA 6K6 6K6GT Vacuum Tubes Valves Gray Bottle July 04 2024 This album has a fair

This album has a fair amount of surface noise

Zenith-LABELED 6C8G dual triode was tested on our Paul Hart-calibrated for shorts

These mesh plate National Union number 78 tube were tested on our Paul Hart-calibrated TV7/U for shorts

WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES

These three Sylvania 7J7s tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair RCA 6K6 6K6GT Vacuum Tubes Valves Gray Bottle July 04 2024 This album has a fairThis matched pair of RCA 6K6GT tubes was tested on our Maxi Matcher tube tester with 325 volts on the plates and a bias of 36 volts. Tube One drew 19. 1 milliamps' plate current while Tube Two drew 19. 4. Transconductance was 1530 for Tube One and 1430 for Tube Two where new nominal is within one standard deviation of 1900. These tubes have tall bases; 952 and 0 39 date codes; gray bottles and bottom, D getters. As I write, I am playing them in my