Matched Pair Ken-Rad 6K6 6K6GT Vacuum Tubes Black Glass NOS-Testing Choral Stereo LP SOME COUNTRIES DO NOT HAVE

SOME COUNTRIES DO NOT HAVE INTERNAL TRACKING

It teats below spec but should work fine in many applications

They tested to spec on our Paul Hart-calibrated TV7/U

Tung-Sol-MANUFACTURED) measured 30 while Tube Two measured 31 where minimum (65%) is 22 and 100% is 34

new in box Telefunken PL82 tube tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair Ken-Rad 6K6 6K6GT Vacuum Tubes Black Glass NOS-Testing Choral Stereo LP SOME COUNTRIES DO NOT HAVEThis new old stock testing matched pair of Ken Rad MANUFACTURED, OEM BRANDED 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 33 milliamps' plate current while Tube Two drew 34. Transconductance was 1710 for Tube One and 1960 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