[sdiy] ICL8038 VCO?

Jess Balint jbalint at gmail.com
Thu Jul 7 16:19:56 CEST 2005


His site, unfortunately, has finally bit the dust.....

Jess

On 7/7/05, Scott Gravenhorst <music.maker at gte.net> wrote:
> They have a reputation for not being very linear.  Thomas Henry has a
> circuit at: http://www.midwest-analog.com/diylvco.html but this is a
> _linear_ CV circuit, not expo.  This circuit linearizes the device.
> 
> Have I tried it?  No, I have some ICL8038 here, and I want to - when I
> finally have some time.  I like the multiwaveform feature of the chip.
> 
> Some here have made LFOs out of them.
> 
> <rkmoore at memphis.edu> wrote:
> >Has anyone successfully used an ICL8038 function generating IC (or any
> >variant, like the AD MAX038) to make a VCO?  They're not cheap (about
> >$7), but it looks like you could easily make a wide range multiwaveform
> >VCO with really clean output and FM.  Is there a catch that I'm not seeing?
> >
> >Thanks,
> >
> >Richard Moore
> >
> 
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