Reporting question for Vacuum Tube - 12AX7 / B759, Genalex Gold Lion

Product:
Vacuum Tube - 12AX7 / B759, Genalex Gold Lion

Question:
How balanced are they for phase inverter position?

Answer:
Although it is possible that some of our current stock is balanced, the only brand that states their preamp tubes are checked for balance is Tube Amp Doctor.