Electronics > Beginners

Question about preamp for measuring noise.

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Kurski:
I really had some desperate need for that kind of circuit. I would like to bring some headphone amp breadboarding data on the big screen through Owon 1022i oscilloscope. Now the limit is 40-50mv. I would like to work with signals under typical audio interface noisefloor. Lets say - 120-130db. Accidentally just yesterday I got those chips from mouser.

Kurski:
Sorry. I just noticed you posted the info already! Thanks.

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