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Do It Yourself (DIY) paradise for tube and SET project builders.

RE: attenuation probe...

10:1 is 20dB attenuation.

I have built a few soundcard probes, both active opamp based and passive and they give such attenuation.

The probe needs to be of a low impedence going into the soundcard input.

I check with my scope and the soundcard control panel for clipping at the input of the soundcard.





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