[sdiy] 566 Functional Replacement

[Dan Snazelle]

Honestly now that the Cem vco  is back in production , in prices lower than the 566 (especially in quantity ) I would think that chip would be a better bet. 

You basically want an OSC on a chip that has multiple waveforms right ?

Sent from my iPhone

> On Mar 17, 2018, at 1:27 PM, Tim Ressel <timr at circuitabbey.com> wrote:
> 
> Hi,
> 
> A while ago I asked for circuit ideas to use my rare 566s in. The more I got into the suggestions the more I realized just how useful the 566 was. And the more sad I got that its gone.
> 
> I am looking for a functional replacement for what the 566 used to do for us. A small, low part count vco design that covers more or less what the 566 did. I would prefer analog over digital because some uses, like noise modulation, may not work so well with a digital solution.
> 
> I have looked at the 4046 design but it requires some components, especially if you want triangle output. There was a tri-core design I saw somewhere online that was real tight. I think it was a 13700 based circuit. But I can't find it now. The is the KA331 but it is DIP only.
> 
> Hmm .. maybe I am out of luck.
> 
> -- 
> --Tim Ressel
> Circuit Abbey
> timr at circuitabbey.com
> 
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