[sdiy] xr2206

[anthony]

I think maybe my query was a little too open-ended.

I've seen the Thomas Henry thing with the 8038, but nothing struck me as 
particularly germaine to what I'm wanting to do. Which is a many-functions 
stuffed in one box - VCO. His trick with the power on the 8038 was way more 
clever than I think I could ever mange.

I actually think I have a pretty good start with the circuits I've seen. I 
just have this feeling that the XR2206 can do more than they mention in the 
datasheet. Long ago I remember someone saying as much.

Someone has a web page "Birth of a Synth". It mentions an XR2206, but I 
couldn't find any details.

Maybe I am overthinking this.


> On Fri, Jan 21, 2005 at 03:31:47PM -0500, anthony wrote:
>> Anybody ever seen anything cool and unusual done with the XR2206?
>
> Look at Thomas Henry's site at his 8038 circuit.
> http://www.midwest-analog.com/diylvco.html
>
> The same approach to making an 8038 not suck can be applied to the 2206 
> and
> as mentioned before on the list there is an upcoming book from Thomas 
> Henry
> about abusing the 8038 and 2206.
>
> I've built several of the 8038 vcos to play with.  The waveshapes are 
> nice,
> but the chips are relatively expensive and since I make PCBoards anyway 
> the
> minor additional wiring of just building a 4069 based VCO makes it
> preferable.
>
> I do have some XR2206 VCOs, they are plain-jane Jameco function generator
> boards which I use as LFOs.
>
> -- 
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>