ribbon controllers

[Steve Varner]

There is information on building a ribbon controller in "Electronic Music
Circuits" by B. Klein. This one is basically a rheostat using a long strip
of conductive foam such as you find protecting semiconductors from static
charges. The foam is placed on non-conductive material (wood, etc.) and two
metal plates are attached at each end. One plate is connected to ground and
the other to a +15V supply. Now, at a slight distance above the foam you
place a piece of metallized mylar film that leads to the Control Voltage out
jack. When you press on the mylar film it makes contact with the foam
somewhere between 0 and 15V. As you slide your finger along the film, the
voltage changes. I haven't made one of these, but I plan to.

SV

Hallgeir Helland wrote:

> Hi there, it's me again :o)
>
> I was wondering if there is some good info
> on ribbon controllers around somewhere.
> How they work, how to make, where to find,
> and such DIY related info.
>
> I'm going to have a joystick on my school-
> synth-project (from one of those radio
> control thingys they fly their model
> airplanes with), and it'll be neat.
>
> But it'd also be cool to have a ribbon ;->
>
> Has anyone done this before?
>
> Thanks,
> Hallgeir
>
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