I didn't realize it says pulse generators up there, because it didn't used to say that! Sorry! (It used to say something along the lines of Zapper Support Forum , Plate Zapping). I guess it must be allowed if it says that up there! (sorry vtool) I don't know the difference between a pulser and a Beck or Rife myself, and I'm not a newbie Zapper, but I feel overwhelmed a little by all the details sometimes and I think it would be helpful to differentiate between the different types and researchers behind them. I don't mean to offend anyone!