[sdiy] Bat-signal re:Rozendal Fritz Double Well Chaos

[Ian Fritz]

Sounds like it's working properly. Great! Sorry I can't help with Timo's additions,  but don't hesitate to ask if there are other issues that come up.

Ian

> On Jun 30, 2025, at 1:34 PM, Richard Moore <rkm31415 at yahoo.com> wrote:
> 
> 
> Thanks for the response, Ian, and for sharing your very cool circuit designs!
> 
> Yes, I believe it operates properly when I feed it an external input. 
> 
> That is, when I put my scope into X-Y mode and increase the "external input" volume I see the trace progress from a path about a single potential well to an orbit about two potential wells.
> 
> -rkmoore
> 
>> On Monday, June 30, 2025 at 12:02:38 PM PDT, Ian Fritz <ijfritz at comcast.net> wrote:
>> 
>> 
>> Sorry, I don't have any info on Timo's version. Does it run OK with external drive?
>> 
>> Ian
>> 
>> 
>>> On Jun 30, 2025, at 11:14 AM, Richard Moore via Synth-diy <synth-diy at synth-diy.org> wrote:
>>> 
>> 
>> Hi fellow synth-heads,
>> 
>> I got Timo Rozendal's PCB/panel and built the Double Well Chaos module.  While linked pages give the schematic for the chaotic double integrator core circuit, I have not been able to find a full schematic.  In particular, there is a pot labelled "Internal Frequency" which isn't in the schematic of the core circuit, and which function I haven't been able to determine.  
>> 
>> Anybody have the full schematic for this one?  Or know what the "Internal Frequency" control is for?  The OG design has to be driven by an external oscillator.  Does this one include an internal LFO normalized to the external input or something?  If so, mine does not appear to be oscillating.
>> 
>> Thanks,
>> rkmoore
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