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Re: PC soundcard zapper
ParaZapper Views: 2,289
Published: 15 years ago
This is a reply to # 654,999

Re: PC soundcard zapper

There is a commercial unit that does this but I consider it and anything similar to be potentially dangerous.

Stereo amplifiers are designed to produce power which is not wanted and can electrocute anyone using it. Also, there is a significant frequency roll off in these power amplifiers so that you end up with only a couple of harmonics above 30 kHz at the most. You really need to get over 20 harmonics at 2.5 kHz in order to achieve reasonable effectiveness.

Observe the signal with a scope and you will see junk.

>- $10 zapper rather than take the hours to round up the parts and build it,

The $10 zapper is much better but will not match the 555 version in capability.


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