[sdiy] 566 Functional Replacement

[Tim Ressel]

I hear ya, guess I miss having a tiny solution.

--tr


On 3/17/2018 12:00 PM, Dan Snazelle wrote:
> 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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-- 
--Tim Ressel
Circuit Abbey
timr at circuitabbey.com