Wiardgroup

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