This question should probably be posted to the Buchla Yahoo group since it is likely there will be people on there who not
only have the module but may have the manual.

Obviously looking at the Wiard Wogglebug may be of use, since it has it's basis in the SOU.
I am sure that it's creator has information but I don't know whether the two designers have a relationship or not.

From my point of view, I would just combine the two version into one module and let the musical questions answer
themselves by usage.

TD

> During my holidays I dealed a little bit with the
> different features of the two Buchla SOUs 265 and 266.
> From my point of view both versions are very
> interesting. We think about a module (or even more)
> that include the features of both modules. E.g. the 2
> power N and 2N+1 was not available for the 265. We
> also think about more outputs (e.g. the "noisy
> triangle" output) of internal functions of the SOU.
> Any ideas from the group, especially from
> users/experts of both 265 and 266 SOU. At the moment
> it is a little bit a problem for us to find out which
> functions are more or less useful for A-100 users. We
> understand all the electronics of both Buchla SOUs
> (different noise and random sources, S&H's, low
> frequency vactrol filters and LFOs). But we have some
> problems to see the musical applications of all these
> functions. E.g. we understand how the 2 power N and
> 2N+1 voltages are generated but we cannot see what
> they do in musical respects. OK, they are quantized
> analog voltages derived from the outputs of a shift
> register that works as a slow digital noise (like a
> slow A-117 with different weighed shift register
> outputs) but what does this mean from the musical
> point of view - e.g. compared to an A-118 random
> output processed with the Quantizer A-156. If anyone
> has available the user's manuals of 265 and 266 (not
> the schematics) this would help us to understand the
> musical side of the circuits.
>
> B.t.w. the SOU use vactrol techniques too (low pass
> filter, rectangle oscillator) so that we could combine
> a little bit the vactrol and SOU research. But
> probably we will do some jobs of the SOU with
> microprocessors (e.g. digital noise, 2 power N and
> 2N+1). But the filtering will be pure analog with
> vactrols."
>
>
> SO, IF ANYONE CAN HELP DIETER ON THIS...
> BAKIS.
>
>
>
>
> =====
> synthfreak(parallel worlds)
> athens-greece
> 1 group owner
>
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