Matched Pair Tung-Sol 6K6 6K6GT Vacuum Tubes Black Glass NOS-Testing May 07 2022 but has GE 188-5 and

but has GE 188-5 and a sutured top

Please be sure your device has enough current to run them

Three of these four new old stock

I just cleaned this LP on our VPI 16

These four new old stock

Matched Pair Tung-Sol 6K6 6K6GT Vacuum Tubes Black Glass NOS-Testing May 07 2022 but has GE 188-5 andThis matched pair of Tung Sol black glass 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 21. 3 milliamps' plate current while Tube Two drew 23. Transconductance was 1890 for Tube One and 2000 for Tube Two where new nominal is within one standard deviation of 1900. As I write, I am playing them in my Mini Mite 2013 and they sound great. WE HAVE SCORES OF THOUSANDS OF VACUUM