Doepfer

If the positive/negative gain isn't an issue, couldn't you just route 
the audio thru an A132 VCA and get voltage control of the gain that 
way?

--- In Doepfer_a100@yahoogroups.com, "Tim Stinchcombe" <timothy@t...> 
wrote:
> Hi Ethan,
> 
> > I own an A136 and have been using it more lately and it occured to 
> me
> > that the most radical timbre changes are caued by turning the 
center
> > "A" knob.  Does anybody know why this feature is not voltage
> > controllable? Also, is there a simple mod to add a "CV in" to the 
> A136
> > "A" knob?
> 
> As you turn the 'A' knob, not only do you alter the gain, but at 
it's 
> centre point, the gain actually changes sign. Whilst this is 
> relatively easy to do with the pot and op amp configuration used in 
> the module, doing it with voltage control (especially the changing 
> sign bit) is probably a considerably more complicated proposition 
> altogether. Thus from what I know of the module, and with my 
> understanding, I think a 'simple' mod is probably not possible.
> 
> Tim
> 
> (... and hopefully this time I won't change my mind 2 seconds after 
> hitting the send button...)