SV: Re: [sdiy] Quad VCA Chips ( was quite erroniously Quad Op-Amp Chips!!!)

[mark verbos]

The patching is not stored. All the knobs positions and switches/modes 
are stored. If you want to store patching you have to route the cabling 
through the matrix module. It stores the connection between several ins 
and several outs. The module includes a matrix for audio and one for 
control.

mark




karl dalen wrote:
> How did Buchla solve the problem of programability?
> Did he scan each and every modulator trough ADC or just rout'ed
> everything on inside busses and just sensing the insertion of the bananas?
> 
> KD
> 
>  
> 
> --- mark verbos <mverbos at earthlink.net> skrev:
> 
> 
>>Aaron,
>>
>>I really doubt that Buchla added those SSM chips to the OBMX. From what 
>>I understand he was required to work with the parts they had and 
>>besically re-design the existing synth that the previous engineers 
>>couldn't get to work properly.
>>
>>Mark
>>
>>
>>
>>
>>Aaron Lanterman wrote:
>>
>>>On Wed, 17 May 2006, mark verbos wrote:
>>>
>>>
>>>>The Buchla 291e uses these. I was surprised to see them when I look 
>>>>inside.....
>>>
>>>
>>>Hmmm... I'm actually not too surprised. Buchla was involved in the 
>>>ill-fated OB-Mx project, and it uses SSM2024s (predecessor to the 2164, 
>>>although definitely not a drop-in replacement) all over the place, 
>>>notably the state variable filter.
>>>
>>>The OB-Mx does use vactrols in the panning section, though...
>>>
>>>See http://users.ece.gatech.edu/~lanterma/obmx for schematics.
>>>
>>>
>>>- Aaron
>>>
>>
> 
>