Matched Pair Transleteronic 6AK5 6J1 6J2 Vacuum Tubes NOS NIB Novar T07 almost-perfectly-matched pair of Sylvania-MANUFACTURED 6BL7GTA

almost-perfectly-matched pair of Sylvania-MANUFACTURED 6BL7GTA dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

The TV7- tubes measured 60

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

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

These three Sylvania 15CW5 / PL84 tubes tested as good on our Paul Hart-calibrated TV7/U

Matched Pair Transleteronic 6AK5 6J1 6J2 Vacuum Tubes NOS NIB Novar T07 almost-perfectly-matched pair of Sylvania-MANUFACTURED 6BL7GTAThis 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