Doepfer

--- In Doepfer_a100@yahoogroups.com, Bakis Sirros 
<synth_freak_2000@y...> wrote:
> dieter says:
> "thank you for the poll results. We will try to meet
> all the requests but we have to discuss the details.
> E.g. for the A-154 the suggestions of non-Yahoo group
> members are completely different, especially no CV
> inputs for first/last step. For the other new

i voted for additional cv inputs, but i'm also happy
with the earlier stated version.


> suggested modules (max/min, polarizer) our ideas seem
> to cover with the results of the polls (i.e. function
> display for the polarizer). At the moment Christian
> Assall is about to test the first planned SOU
> functions with a modified A-156 Quantizer (some
> additional potentiometers and sockets). This saves the
> development time for the first prototype. At least the
> next two weeks we will be busy with building and
> testing the prototype of the new Hammond keyboard we
> plan for fall 2003 (yes - there is a life beyond
> A-100). After this I hope the prototype pc boards for
> the max/min and the VC polarizer module will arrive
> and Roland Mayer will be able to built and test the
> prototypes. We will even test a modified version of
> the A-138a/b. The difference is a jumper for the first
> potentiometer so that it could be used as offset
> control provided that no plug is connected to the
> corresponding socket, and an additional inverted
> output.

then we will see lots of used a138 for sale in the future ;-)

> One important question is if we will redesign the
> A-154 (add. CVs and controls for first/last step) or
> publish it as it is. The A-154 in the current state is
> nearly ready, a redesign will delay the module
> publication for several weeks. We will see ....
> The manual gate module will cause no problems as it is
> a very simple module concerning the electronics. As
> soon as the final version is fixed (i.e. how many and
> which type of buttons/outputs/LEDs) the module could
> go into production very soon as we expect no
> problems/redesigns of the electronics - in contrast to
> more complicated modules like A-107 or A-154.
>  
> I also read some articles about chaos theory. We will
> try some patches to simulate a chaotic voltage based
> on the so-called "logistic equation" and on FM
> cross-coupled VCOs. I have a "theoretical" A-100 patch
> for the logistic equation but we did not yet test it
> so far (I could put it on our web site or send it as
> an email attachment if anyone is interested). We also

yes please.


> simulated the so-called "Chua's circuit" with Pspice.
> This is a special kind of oscillator that generates
> different chaotic or non-chaotic waveforms according
> to the setting of a "chaos" parameter. Details for the
> whole chaos area will follow as soon as we have the
> first "real" results.
>  
> We are also about to design a prototype for a PLL
> module. But I have no details so far. As soon as we
> have a rough idea regarding the controls I will put a
> front panel sketch and a short description on our web
> site.

very cool :-)


ingo