RCA 6BK7 6BK7B Vacuum Tube Valve NOS NIB For Your Schiit GM Delco It has 9AX date codes

It has 9AX date codes

We also have Soviet-era tubes to go with it

O getter and excellent flashing

These three milspec Hytron JAN-CHY-0C3 VR-105 VT-200 regulator tubes were tested on our Paul Hart-calibrated TV7/U

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 It has 9AX date codesThis 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