[sdiy] LFO with variable waveshaping

[Theo]

Think in this circuit it works better to have the speed pot as a voltage
divider.
You won't get good saw waves at low speeds this way.

Theo



From: Motohiko Takeda <takeda at aleph.co.jp>



> Hi all.
>
> > Check with the korg MS20 LFO for the basic principle, see Marjan Urekars
> > website for a good drawing.
>
> I had checked his page and I redraw his circuits like this.
>
> http://www.aleph.co.jp/~takeda/radio/work/LFO2.gif
>
> I tried type B on breadboard. But it dose not work well.  If frquency
> is hi enough then it's OK. but it go down then time of up to top and
> down to low takes long time. And if you use it VCO modulation then you
> can't find the deffelence of both.
> It's just a experiments, but it's so fun!
>
> Motohiko Takeda
> Tokyo Japan.