>- It is the positive offset that makes a zapper work, not a specific frequency!
OK great, We can tell Bob Beck, R.R. Rife, Ken Pressner, and Don Croft that they are all wrong and they can remove their products from the market.
I guess that I will have to remove our best zapper too as it does not use positive offset but actually reverses polarity. Such a shame that it works so much better and has to be removed but I know that you have done a tremendous amount of research on this and that your research has been verified by many other qualified researchers.