Use a voltage inverter, like the A175.

-Monroe

On Wed, Oct 27, 2010 at 2:02 PM, mr_marble_madness <
kinetic-arts@... > wrote:

>
>
> Hi, I'm a newbie to the group and to doepfer products but I thought I'd
> have a little go building a theremin/synth hybrid machine from (mostly)
> doepfer parts. I've got the thing more or less put together:
>
> (2 a-178 theremin modules, a a-114 ring modulator, a a190-2 midi unit and
> doing most of the work the a-111-5 mini synth voice, the panel version of
> the Dark Energy)
>
> There's also a space for a bucket bridge analogue delay but I'm still
> saving my pennies for one of them.
>
> I was originally going to build the thing around the Dark energy.
>
> Anyway.. It's working quite nicely but does anyone know a nice clean way of
> inverting the CV from one of the theremins so it will perform like a classic
> theremin and kill the sound when your hand approaches the volume antenna as
> opposed to making the sound louder
>
> http://i652.photobucket.com/albums/uu243/MarbleMad/therasynth.jpg
>
> Are there any additional mods to the theremin modules I know they have a
> bit of a rep for not being very linear. One of my modules was second hand
> and has some kind of mod involving the antenna but I can't figure out what
> it's all about and as far as i can tell it performs just like the new one.
> I've already replaced the horrible transistor radio aerials with some nice
> antenna made from gas pipe and they work very nicely but I would like to get
> the volume behaviour right.
>
>
>

[Non-text portions of this message have been removed]