> Hi - I'm wondering what the options are very VERY slow (several minutes hopefully) are for VCLFOs that produce sine
> waves. At the moment I'm using the Triangle waves from A 143-4s but sometimes sines would be more pleasing. It is about
> creating slow changing drones. I'm using a sine wave going to an FM Aid where it is folded before going into an A116
> which is being modulated by the Sawtooth from the same oscillator. The FM Aid is using an other (harmonically related)
> sine to modulate the first sines folding. Various parts of the process are in turn very slowly being modulated by the
> LFOs so that slow drifts occur. ItS especially interesting watching it on the oscilloscope :-) Very slight (+/- 1 hertz
> or so) variance in the FM Aid's modulating sine's frequency gives lovely "waterfall" effects on the oscilloscope screen -
> waves running one way and then slowly stopping to run in the other direction. It would be nice to be able to project the
> oscilloscope trace onto the walls and ceiling :-)
>
> I'm gonna get an A113 so that I can have Sawtooth Waves to drive the A116 with phase related but much lower frequencies.
> But I'm wondering - what would it be like to take the basic Saw out the A113 into my A137-2 and then very slowly move the
> phase of the Saw about with other LFOs
>
> David
>
> www.movingisliving.co.uk

When an external negative CV is applied the A-143-9 can be used for very slow sine waves. Alternatively the internal frequency
offset trimmping potentiometer P3 can be re-adjusted for very slow frequencies without the need of an external negative CV.

Also the planned A-110-4 will be able to generate very slow sine waves when you adjust the linear frequency control near to zero Hz.

Best wishes
Dieter Doepfer