Matched Pair Transleteronic 6AK5 6J1 6J2 Vacuum Tubes NOS NIB Novar T07 new in box GE 6J6

new in box GE 6J6 / 6J6A tubes tested to spec on our Paul Hart-calibrated TV7/U

not included) and Tubes Two and Three sounded excellent and should work fine as a stereo pair in an amp in which each tube is biased separately

52/34 and 56/47 where minimum (65%) is 40/45 and 100% is 62/69

Tube Two lacks most markings and I believe it was military surplus and had its markings removed as memories of the war were a little too fresh

This is an early-production 12AU7 -- not a 12AU7A like most 12AU7s we see these days

Matched Pair Transleteronic 6AK5 6J1 6J2 Vacuum Tubes NOS NIB Novar T07 new in box GE 6J6This new old stock, new in box matched pair of Transleteronic 6AK5 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 27 while Tube Two measured 28 where minimum (65%) is 22. These tubes are the equivalent of the Chinese Russian 6J1 and 6J2. I am playing them now in my Mini 2013 as I write and they sound excellent. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S