[sdiy] The Mighty Korg KR-55

[Tom Wiltshire]

Rafe,

At first sight it looks like you could certainly add some variation  
by sticking some pots in.
My suspicion would be that there will be interactions between one  
parameter and another; e.g. changing the pitch of a kick drum sound  
might well alter the length of its decay too, and vice versa.

How bothered are you about that sort of thing? Are you just after  
some variations, or does this have to be clinical?

Regards,
Tom


On 23 Oct 2008, at 12:34, Dj Sinistral wrote:

> Hi everybody!
>
> I'm pretty new to this list, and I've got a challenge for some clever
> circuit gurus!
>
> The Korg KR-55, reportedly used by Jean Michelle Jarre and others, has
> some great analog drum circuits, but no sound shaping controls like  
> attack,
> decay and tune.
> So can it be done??
>
> I've uploaded the schematics here: http://rafe.com.au/KR55schems/
>
> The circuits look pretty basic with clearly separated sections for  
> each
> instrument. Controls for the kick, snare and hats would be plenty.  
> I imagine
> a few well placed pots will do it.
>
> Thanks heaps!!!
>
> Rafe
>
> Brisbane, Australia
>
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