Interesting

Dear Beth,

I liked your method of comparing zappers. I ended up buying Dr. Clark's zappers also.

In regard to your statement,"Sine waves should not be so effective since each covers only one particular frequency. But has Dr. Clark ever tried square wave that alternates between positive and negative? Removing the DC component and let the square wave alternates between positive and negative will not reduce the power in the pathogen’s band, so it should still be effective."

Dr. Clark's zappers as you know are totally Positive offset by 1/4 of a volt. This is to be sure that the voltage never dips below and becomes negative offset. She says that even a small percentage of negative spike will ruin the effect of killing parasites and do more harm than good while zapping.

I think you might enjoy reading Dr. Clark's Syncrometer Science Laboratory Manual. In this book are many experiments using sine wave with square waves and their effectiveness when used together.
Also, sine wave used alone. Sine waves were effective when directed towards a particular frequency such as killing tapeworms.

Thanks for your input.
CP

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