Wiardgroup

Dave,

How do you like the Comdyna?

As a matter of fact, I almost bought a Comdyna, but was concerned
about the relative restricted range of function when interfaced to a
10v vc system, so I haven't yet, waiting for a wizard to appear to
magically address these issues. 

Aside from the obvious logic circuits and how they are useful in pulse
and control voltage patches, I am very interested in filter design.  I
could see investing in an analog computer just to have a multi channel
VC filter patch that I could tweek.

Gary


--- In wiardgroup@yahoogroups.com, "grantrichter2001" <grichter@a...>
wrote:
> 
> Music synthesizers are actually a subset of analog computing in 
> general. The combination of a multiplier and an integrator gives 
> you voltage control. For example you can patch up an EML state 
> variable filter with two multipliers, two integrators and a summer.
> 
> What is really needed is an analog computer designed explicitly 
> for electronic music. That would make each integrator voltage 
> controlled with some over all routing control. I did this with my 
> Lab Electronics model X3 "Analog Computer Trainer".
> 
> http://www.labelectronics.com/
> 
> by replacing each integrator input resistor with a Vactrol. I 
> uploaded a picture of a stock trainer to the photos section. I'll add 
> a picture of the modified trainer later.
> 
> I have used it to prototype different filters. An analog computer 
> can act as a test bench for weird filter designs.
> 
> 
> --- In wiardgroup@yahoogroups.com, "davevosh" 
> <davevosh@a...> wrote:
> > 
> > 
> > hello to all - 
> > a while back someone had posted something related to the 
> > (delightful)  "j.a.g." and mentioned analog computers.
> > now, i know grant has one, i have a comdyna gp6 as does at 
> least one 
> > other person on the list.
> > my question - does anyone else ? i`d be interested in hearing 
> about 
> > how they are being used -
> > thanks !
> > best,
> > dave