Matched Pair Sylvania Black Plate 6CL6 Vacuum Tubes 26HU5 NOS NIB This Sylvania 6BS8 tube tested

This Sylvania 6BS8 tube tested to spec on our Paul Hart-calibrated TV7/U

I have played it in one of my ArtSound 805 monoblocks and it sounds excellent

Transconductance was 1900 for Tube One and 1800 for Tube Two where new/nominal is within one standard deviation of 1900

There were no shorts or gas and transconductance measured as follows:

Matched Pair Sylvania Black Plate 6CL6 Vacuum Tubes 26HU5 NOS NIB This Sylvania 6BS8 tube testedThis matched pair of Sylvania black plate 6CL6 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas.. They measured 44 and 48 where minimum (65%) is 30. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST