Does anyone have any good tricks to help reduce or eliminate crossover distortion like in your class B tube driver and/or modulator other than biasing the tubes more positive or using typical negative feedback? You see a lot of articles on the web for doing such using pre-bias, diodes, and etc., but using transistors and their bases always have a positive voltage applied anyway. With tubes you have negative bias voltages at the grids so it’s not positive. You can run the tubes less negative so they are not completely in cutoff, but that has it's disadvantages. I have seen some designs though where they used added transistor circuits in series with the cathodes to drive them and that's sort of what I'm curious about. . [doublepost=1475156221,1474905115][/doublepost]Here is a patent for eliminating it, but its all solid state. Then here are two amps doing a similar thing with tube finals. They are cathode driven. What I’m wondering is if there is a way to do a similar thing, but using all tubes with tubes in series with the final cathodes or in a buffer configuration. .