[sdiy] ICL8038 VCO?

[Scott Gravenhorst]

That's strange, it worked for me.

laxt57 at aol.com wrote:
>
>
> 
> Hi Scott
>  Mr. Henry's site is alas, no more!
> Jeri
>-----Original Message-----
>From: Scott Gravenhorst <music.maker at gte.net>
>To: synth-diy at dropmix.xs4all.nl
>Sent: Thu, 07 Jul 2005 07:02:22 -0700
>Subject: Re: [sdiy] ICL8038 VCO?
>
>
>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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>
>-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
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>

---------------------------------------------------------
- Where merit is not rewarded, excellence fades.
- Hydrogen is pointless without solar.
- What good are laws that only lawyers understand?
- The media's credibility should always be questioned.
- The only good terrorist is a dead terrorist.
- Governments do nothing well, save collect taxes.

-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
-- Linux Rex         | RedWebMail by RedStarWare
-- FatMan: home1.gte.net/res0658s/fatman/
-- NonFatMan: home1.gte.net/res0658s/electronics/
-- Autodidactic Master of Arcane and Hidden Knowledge.