Vintage Simmons Drums (UK) Users Group

Actually it could do a lot more sounds then 
the SY1 or a  typical simmons!

For example,a drum voice could consist of two Sine/triangle VCO,
one can do FM , lin or log, each VCO have a VCA, then one
variable Noise source with its own VCA, a 2pole self 
oscillating HP/LP filter wich can be FM by both VCOs,
a mixing output stage, a decay generator for every VCO freq,
and VCA level, and VCF freq, with variable decay time amp level
and velocy. And a simple klick generator. Since there would be 
3 way FM the requrements for inharmonic structures are satisfyied
to create bell, chime, ride and cowbell etc sounds.

One can do an awful lot of sounds with such a simple architecture.
You could do most of the old/new Kraftwerkian type of sounds.

KD

--- In Simmons_Drums@yahoogroups.com, "dalenkarl" <dalenkarl@y...> 
wrote:
> --- In Simmons_Drums@yahoogroups.com, Paul.Maddox.Mail-list@S... 
> wrote:
> > KD,
> > 
> > > I wonder, would there be any interest/market for a remake
> > > of a set of simmons drums, either as a DIY kit or as ready
> > > made?
> > 
> > Aside from the copyright issues, I'm sure people would go for it, 
> if it sounded good.
> 
> Well, there is no copyright issue "exept" "perhaps"
> for the name simmons, we could name it Limmons for instance! :-)
> 
> > good.
> > The biggest problem is going to be cost.
> > If you're talking just the drum brain, then it'd have to be less 
> >than £250 to
> 
> Well, i just had a look at it, base the VCA and VCO VCF on 13700
> and we are dirt cheap, one side does VCO the other does VCA 
> "including" sine shaper and 2 quadrant modulator FM as default 
> in VCO, drums dont need tempcos so we save an awful lot of money
> there. Nor do we need perfect tracking so standard components
> will do for every thing. 
> 
> Sequencer brain including user interface (pot scan),
> demux for drum voice controll can stay at 8 bit all 
> done with one of your favourites, AT MEGA16 for instance.
> Dirt cheap, all depends what one would charge for the 
> software development? 
> 
> > compete with the stuff that goes on e-bay. and that's going to be 
> the hardest
> > part..
> 
> Actually, i was more into of an "modern" programmable analog/digital
> drum diy synt more into the voice architecture of the Pearl
> syncussion SY1 but with the capability of making the typical
> simmons sounds.
> 
> I dont consider the hardware the biggest cost, a quick look 
> says 8 voice module including evrything, brain etc could be
> done well under 250euro! Thats the "raw" cost, no profit, 
> no taxes, etc.
> 
> KD