Excuse me Argitoth, but if you're so obsessed with pure sine waves, go
digital. Buy Max/MSP or learn SuperCollider.I thought we were using analogue
gear because of its colour and impurities
At least I am.
And I'll say it again: Buy an A143-9 if you want nice sinewaves.
It goes far into the audiorange.
Check the attached picture.. An A143-9 hooked up straight to my Focusrite
Pro26 firewire interface.

greets,

Ernst

On Tue, Nov 25, 2008 at 12:50 AM, Argitoth < argitoth@... > wrote:

> man, I feel jipped now. Every oscillator that doesn't have a clean
> sine is simply using cheap parts that suks.
>
>
> On Mon, Nov 24, 2008 at 4:43 PM, laryn91 < caymus91@... <caymus91%40mac.com>>
> wrote:
> > My Aries modular VCOs have a triangular core that also forms the square
> and
> > sine output.
> > There's a second sync'd core for sawtooth output (so no glitch). It's
> their
> > differential
> > transistor tri-to-sine converter that makes the high quality sine output.
> >
> > Moog, Arp, Polyfusion, etc. all used this standard circuit to make their
> > high quality tri-to-
> > sine conversions. Looking at Doepfer schematics, all his oscillators
> (except
> > the quadrature)
> > use that cheap simple diode converter. I'm guessing Dieter chose this for
> > cost rather than
> > quality reasons. I was expecting the expensive High-End VCO to be better
> > quality.
> >
> > BTW, I was really tempted to get Tip-Top, but that video shows a
> distorted
> > sine even
> > worse than Doepfer! Makes me wonder about the design quality inside...
> >
> > --- In Doepfer_a100@yahoogroups.com <Doepfer_a100%40yahoogroups.com>,
> Argitoth <argitoth@...> wrote:
> >>
> >> So far I think from best to wrost, (but I'm not so sure) it's
> >>
> >> 1. Plan B VCO Sine (good)
> >> 2. Tip Top Audio VCO (a little better than Analogue Systems Never
> >> owned one of these)
> >> 3. Analogue Systems VCO Sine (bad)
> >> 4. Doepfer A-110 (worse)
> >>
> >> Laryn91, your vintage MODULES or your vintage tabletop/rack/keyboard
> >> synths Don't forget that all my filter modules produce very clean
> >> sines. Also, I believe the quality of the sine has to do with its
> >> oscillator core. I think to get a clean sine requires a second VCO
> >> within a VCO... as in, one module has to house two different
> >> oscillator cores. One for square,tri,saw, and another separate one for
> >> sine... but I don't know anything about circuit boards, this is just
> >> my guess. I think this is easily done in a self-contained synth like
> >> your vintage gear because it's one whole system, not a bunch of
> >> modules... or something... know what I mean
> >>
> >
> >
>
> --
> www.elanhickler.com
>
> an,
>
>
>


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