[sdiy] High frequency VCO designs

[mark verbos]

Is it me or do a couple of those pitches sound out of the pocket when he's touching the header?
2% is pretty loose.

Mark




On Sep 24, 2014, at 6:22 AM, Tom Wiltshire wrote:

> I'm sure it's been tried lots of ways. A CPLD is the obvious solution in my view, like this:
> 
> 	http://majolsurf.net/wordpress/?p=1992
> 
> But the PIC way is also cheap and simple, if you can sort out the vibrato clock problem. Hence the original question.
> 
> NOS chips and clones seem to cost around £40 - I'm sure I can buy twelve PICs for less than that, and I don't need any dividers. So it's still a reasonable solution, even if not particularly elegant or original.
> 
> Tom
> 
> On 24 Sep 2014, at 08:35, Oakley Sound <oakleylist at btinternet.com> wrote:
> 
>> Some one has had a go of this already. I've not tried it, but his other little octave chiplets are very useful.
>> 
>> http://www.flatkeys.co.uk/MK50240.html
>> 
>> Tony
>> 
>> http://www.oakleysound.com                 DIY Synths
>> http://takla-makan.bandcamp.com            My Music
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