Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes Valves NOS-Testing CD Compact Disk I am listening to it

I am listening to it with Pink Floyd's "Obscured By Clouds" and it sounds great in my Schiit Audio Vali 2 headphone amplifier

but should work fine

Tube One measured 64/64 while Tube Two measured 66/66 where minimum (65%) is 50/50 and 100% is 77/77

Transconductance measured 3100 micromhos with a plate current draw of 37

Matched Pair General Electric GE 6SJ7 6J8P Vacuum Tubes Valves NOS-Testing CD Compact Disk I am listening to itThis new old stock testing, matched pair of GE 6SJ7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 64 for Tube One and 68 for Tube Two tubes where minimum (65%) is 40. They have NU 188 5 and 3 09 188 5 date provenance codes, respectively. I am playing them as I write in my Musical Paradise MP 301 MK3 and they sound excellent. WE HAVE SCORES OF THOUSANDS OF