Matched Pair General Electric GE 6X5 6X5GT Black Plate Vacuum Tubes Valves Rectifiers February 26 2021 These six US-made 7B8 tubes

These six US-made 7B8 tubes tested as follows on our Paul Hart-calibrated TV7/U where minimum (65%) is 29 and 100% is 45:

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 over 20% stronger than the first

rectangle top mica spacers with chevrons

Transconductance measured 3900/4500 micromhos

Matched Pair General Electric GE 6X5 6X5GT Black Plate Vacuum Tubes Valves Rectifiers February 26 2021 These six US-made 7B8 tubesThis matched pair of GE 6X5GT rectifier tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. They measured 48 49 and 51 49 where minimum (65%) is 40 40 and 100% is 62 62. They have black plates; side, D getters; excellent flashing and round, crenelated top and bottom mica spacers. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER