Doepfer

Im surprised that Roland does not make a limited production run of  
the TB-303 again
They are selling for US$2000 on ebay


On 11/12/2007, at 11:28 PM, <hardware@doepfer.de> wrote:

> > very interesting, thanks for the links.
> >
> > i cannot recall exactly from where i got the info, but
> > i think that also the slide circuit is somewhat unique.
> > a special ic was used for this, which is unavailable
> > for many years now. but again i cannot recall what
> > made it special, maybe a strange response curve.
> > probably there are some ways to mimic that slide circuit,
> > because it was not mentioned in the devilfish posting.
> >
> > best wishes
> >
> > ingo
>
> Another special feature of the 303 was a dual potentiometer for the
> resonance (i.e. two potentiometers with one common axis). The first
> potentiometer was used to control the resonance, the second  
> (simultaneously)
> the envelope amount applied to the filter frequency (post the ACCENT
> control). In addition this second potentiometer was not wired in  
> the usual
> way as an attenuator (with one terminal connected to GND) but kind  
> of "AC
> coupled GND": the terminal that is normally directly connected to  
> GND was
> connected via a 1uF capacitor to GND.
>
> Best wishes
> Dieter Doepfer
>
>
> 



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