Philco Star Light 6BK7 6BK7B Vacuum Tube Valve NOS NIB For Your Schiit 50L6GT Black Plate Both measured 54 were minimum

Both measured 54 were minimum (65%) is 36 and 100% is 55

Tube One (12B4

crenelated

new in box Italian Sylvania 12SN7GTA dual triode was tested on our Hickok 600A for shorts

Johnson porcelain

Philco Star Light 6BK7 6BK7B Vacuum Tube Valve NOS NIB For Your Schiit 50L6GT Black Plate Both measured 54 were minimumThis new old stock, new in box Philco Star Light 6BK7B tubes tested to spec on our Paul Hart calibrated TV7 U. I have played it in my Schiit Audio Vali 2 headphone amplifier and it sounded great. 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 FORMS OF SHIPPING EXCEPT