Korg Poly800/EX800 Users

Hopefully AtomSmasher is out there,

The Moog Slayer mod seems to be picking up pin 7 of the op amp (IC4)
that is being driven by DCO1 output. This I believe to be the square
wave output of DCO1.

Did you ever try to use pin 1 (DCO1 triangle wave)?

You are feeding that DCO1 wave into VCF LIN (pin 13). I suspect this
is a linear control line for the VCF cutoff.

How did you arrive at the 5K POT and 1K fixed resistor values? Was it
trial and error or what method did you use to arrive at those values?

The reason I ask is because the digital pot I am considering using is
a 10K and so I may need to rework the bias resistors. Any light you
can shed on this would be much appreciated.

The good news is that with digital controls, we'll be able to set up
single and double modes to work consistently with the VCF cutoff. And
the other good thing is that we may be able to send the noise
generator into the VCF LIN signal too. So I am going to start circuit
bending this weekend and see what I can come up with.

12/24db filter is also definitely going to be included.

Mike.