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

[René Schmitz]

Hi HA, Rutger and all,

HA.Synth at t-online.de wrote:
> The  CA3130 is designed for unsymetric supply voltage. The schemo looks OK. 

No. The fact that the OP is run from V+ to GND, together with the fact 
that its input signal sits around GND is odd. The output would be 
clipped off at the negative side. (If the common mode permits that at 
all, I haven't checked.)
I would simply replace the OP by something which can run off +-15.

Cheers,
  René

-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159