Matched Pair General Electric GE 12SN7 12SN7GTA Vacuum Tubes NOS-Testing 6K6 I BUY TUBES IN BULK

I BUY TUBES IN BULK

3 rather than 12

Tube One measured 61/60 while Tube Two measured 68/68 where minimum (65%) is 50/50 and 100% is 77/77

WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES

Matched Pair General Electric GE 12SN7 12SN7GTA Vacuum Tubes NOS-Testing 6K6 I BUY TUBES IN BULKThis matched pair of new old stock testing General Electric GE 12SN7 12SN7GTA dual triodes was tested on our Jackson 648 Mutual Conductance tester for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 95% 93% and 95% 94% for Tube Two. (New 6SN7s typically test from 2600 micromhos and the Jackson expresses this as a percentage.) I am playing them as I write in my Alan Eaton single ended 45 amplifier with RCA Living