RCA 6BK7 6BK7B Vacuum Tube Valve NOS NIB For Your Schiit GM Delco O getter and excellent flashing

O getter and excellent flashing

They measured 52

I just cleaned this LP on my VPI 16

Transconductance measured 67 in Section One and 65 in Section Two for Tube One and 67/69 in Tube Two where minimum (65%) is 50/50 and 100% is 77/77

RCA 6BK7 6BK7B Vacuum Tube Valve NOS NIB For Your Schiit GM Delco O getter and excellent flashingThis new old stock, new in box RCA 6BK7B tube 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. This variety has gray, winged plates with one rectangular hole per plate; copper support rods; shields between triodes to eliminate crosstalk; great flashing and goal post getters. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO