EMF- Korg 707 VCF, I don't get it. <sorry forgot the link>

[Theo]

Sorry forgot the circuit..
I couldn't find back the original on the EFM side, so I put up a temp page
for it.
http://tidaltemp.homestead.com/index.html

> Hi All,
> I've a question about the korg 707 VCF schematic from the EFM side.
> The CV input and CV cancellation is clear to me, as is the soft clipping
> buffer on the output.
>
> My problem is the filter function itself.
> I tried to draw a replacement L C circuits for  the LP, HP and BP
function,
> but somehow just don't get it.
> Could some one please explain?
>
> Cheers,
> Theo
>
>