[sdiy] LFO VC Skew?

Ben Riggs benalog1977 at gmail.com
Mon Feb 17 15:54:59 CET 2020


https://www.aleph.co.jp/~takeda/radio/morph/

References all the people who have played with the idea.

Ben.

Sent from my iPhone

> On 17 Feb 2020, at 7:33 pm, ackolonges fds <ackolonges at hotmail.com> wrote:
> 
> 
> Hi All,
> 
> I'm a big fan of the 'skew' (sweep from sawtooth, through triangle, over to ramp wave) function of some analogue LFOs and find it indispensable. I would love to be able to CV the skew function though it generally doesn't seem to be an option. Some circuits seem to control skew by having a pot control the balance between current flowing each direction via two diodes with opposite polarity (eg. the MFOS VCLFO circuit, or the Nicolas Woolaston LFO circuit), which seems like a particularly tricky thing to be able to voltage-control.
> 
> I was wondering if anyone here knows of any existing circuits which provide that functionality, or have any ideas as to how one may go about making it happen?
> 
> Thanks a lot for any input 🙂
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