[sdiy] CA3130 in Polyfusion Noise module...should a new one work?

[JH.]

> The schematic is not OK...as drawn...the CA3130 stage will not work.

Strange drawing indeed. Just look at the second stage with that stupid
"white offset" trimmer. Why would you adjust the DC level, when the 
stage is AC coupled at input and output? And if for some obscure
reason you would, then why make the sensitivity of the trimmer 
3750V (!) per one full rotation ?? 

And the first stage (CA3130) will either work, half wave rectify, or
not work at all, depending on amount and polarity of the opamp's
offset voltage.

JH.