AW: Re: AW,2:Re: AW: Another VCF Finished

[Mikko H.]

> 
> >     without the 100K/220 linear-mode input resistor dividers on the 3080
> >     inputs? Is this to utilize the negative feedback to keep the
> >     differential input voltage on the 3080 to zero, thereby eliminating
> >     any non-linearities? Is there any danger to the 3080, during
> >     slew-limited clipping for example?
> 
> 
> If you like this effect or not is just a matter of taste. But building a 
> filter with
> 100k/220 dividers gives you no choice: you're always on the save side.
> OTAH, with  22k/220 dividers, you have the choice to have a clean
> filter or an overdriven filter, depending on input attenuation.
SSM-2040 filter uses 100k/200 at input stage for attenuation with 10k feedback
from first buffer output to (-) input of gm stage, rest of stages use only
10k/200 attenuation with 10k feedback resistor, and last output summing 
inverter stage has 10k/100k resistor divisor (10X amplification), maybe
this is way to go (or not). Max differential input with CA3080 is 5V.

-Mikko