Matched Pair Sylvania 6SJ7 6J8P Vacuum Tubes Valves NOS-Testing March 26 2023 I have played it in

I have played it in my Schiit Vali 2 headphone amp and it sounds great despite the fact one section tests just above the cusp and the other tests nearly x% stronger than the first

The performance is excellent and heart-felt

new in box matched pair of RCA 12SN7GTA dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

new in box Philco 12CA5 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box Hytron 35L6 tubes tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair Sylvania 6SJ7 6J8P Vacuum Tubes Valves NOS-Testing March 26 2023 I have played it inThis new old stock TESTING matched pair of Sylvania 6SJ7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 59 for Tube One and 60 for Tube Two where minimum (65%) is 40. Both have 939 date codes. I am playing them as I write in my Musical Paradise MP 301 MK3 and they sound excellent. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT.