Doepfer

That does not indicate that they could sell a sufficient number of
them. A Roland employee once made clear in Analogue Heaven that for a
large company like Roland it is not economical to serve a niche market.

--- In Doepfer_a100@yahoogroups.com, David Bulog <d2ba@...> wrote:
>
> 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@...> 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
> >
> >
> > 
> 
> 
> 
> [Non-text portions of this message have been removed]
>