Re: Making Zappicator with computer and audio software...

>- I just need to know if I have to convert AC to DC?

To achieve any effectiveness, yes. You will need a positive offset square wave.

>- Also will a diode make that conversion possible?"

NO. It will convert the signal to positive half sine wave or negative half sine wave depending on orientation. It will not produce a positive offset or a square wave with harmonics which is what you need.

>- I have doubts about the effectiveness of zappers

Zappers work, zappicators do not. At least none of the ones I have tried.

However, zappers are not perfect and there is a tremendous variation between units, especially with standard zappers. This is due to the accuracy limitations of the circuitry as the ones based on 555 timers or other RC timers are not exact.