I took a look at the A-110 boards. It should be possible to insert the
additional circuit into the 10 pin ribbon cable connection between the main
board and the small output board so that no soldering would be necessary.
But that's possible only if no additional amplifier is required.

Best wishes
Dieter Doepfer

remark: I'm not in the company for the next five days. So I cannot answer to
emails or comment messages of the group.

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von laryn91
> Gesendet: Donnerstag, 21. September 2006 18:55
> An: Doepfer_a100@yahoogroups.com
> Betreff: 1 Re: Possible A-110 mod for better sinewaves
>
>
>
> Yes - that'd be great!! I would buy 8 to upgrade all my VCO's.
>
>
> --- In Doepfer_a100@yahoogroups.com, <hardware@...> wrote:
> >
> > Tim,
> >
> > excellent work. Sounds very interesting - especially as the circuit
> > obviously does not need a power supply. Maybe we could built a small pc
> > board that can be added to the A-110 (provided that we get the

permission

> > from you). Only three wires are needed (tri input, sine output, GND).
> > Another solution would be a modification of the small output board of

the

> > A-110 (adding the additional parts to this board).
> >
> > Best wishes
> > Dieter Doepfer
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: Doepfer_a100@yahoogroups.com
> > > [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von Tim
> Stinchcombe
> > > Gesendet: Mittwoch, 20. September 2006 23:28
> > > An: Doepfer_a100@yahoogroups.com
> > > Betreff: 1 Possible A-110 mod for better sinewaves
> > >
> > >
> > > Hi list,
> > >
> > > After the recent thread about the 'purity' of the sinewaves from
> the A-
> > > 110, I started looking at how these could possibly be improved.
> I came
> > > across a simple conversion circuit, not that much more
> complicated than
> > > what is in there at the moment, and when I breadboarded it, I was
> > > stunned at just how good the sine waves from it are - I have
> created a
> > > new page at my website with a couple of scope traces:
> > >
> > > http://mysite.wanadoo-
> > > members.co.uk/tstinchcombe/synth/invest/invest.html
> > >
> > > (watch the line-wrap there!).
> > >
> > > I'm in the process of seeing how feasible it might be to actually
> > > modify an A-110 to incorporate the extra bits 'n bobs to do
> this. (I
> > > also want to get the original paper of the circuit, so that I
> can check
> > > that the component values are 'optimal'!)
> > >
> > > Tim
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>