Doepfer

not looking for precision vco's. only lfo's and polyphonic experiments. i have precision vco's when i need precision. this thing looks perfect. 

--- In Doepfer_a100@yahoogroups.com, <yahoo@...> wrote:
>
> > Hi all
> >
> > Dieter Doepfer schrieb:
> > > The A-143-4 was planned as a VCLFO but not as VCO.
> > I think we should take in account, that there is an essential aspect
> > missing which is necessary for a real VCO:
> > There is no fine tune. I assume the Frequ.-knob would cover a range of
> > around 5 octaves or more. I doubt that the four oscillators could ever
> > be tuned to a real common pitch as it would be required for unisono or
> > polyphonic use.
> >
> > Florian
> 
> Right, there is a discrepancy for the traditional frequency control
> behaviour for LFOs and VCOs (provided that only one frequency control is
> available, but not a set of e.g. fine tune, coarse tune, octave switches).
> Usually the controls of a LFO cover a range of several octaves whereas the
> frequency control of a VCO should cover a smaller range as the pitch of a
> VCO is mainly controlled by a CV coming from the sequencer, keyboard,  Midi
> interface or whatever. We added a jumper for the control range of each knob
> to pcb. As already said the A-143-4 is planned in the first place as a VCLFO
> that can be "abused" as a VCO too. The planned A-110-4 will be more VCOish
> (with octave switches, smaller control range of the manual frequency knob,
> sawtooth core, PWM).
> 
> Best wishes
> Dieter Doepfer
>