Vintage Simmons Drums (UK) Users Group

K,

> Well, there is no copyright issue "exept" "perhaps"
> for the name simmons, we could name it Limmons for instance! :-)

Hehe.

> 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.

:-)
To get that 'simmons' SDS-V sound, you need a 4 pole filter, preferably a
moog ladder (SSM2044)

> 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.

Pretty cheap, yes..
Then theres the PCB, Power supply, Case and assembly costs.

> 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.

Go for it, But I think you'll be in for a surprise when you goto manufacture
it..
I recently tried to build a polysynth, to make an 8voice digital/analogue
poly was going to cost around £2500 to make, which meant I'd have had to
sell it for over £3000, and not many people will pay tthat for an 8 note
polysynth these days :-(

Paul