[sdiy] keyboard question

[Samppa Tolvanen]

On Mon, Apr 13, 2009 at 12:26 AM, Ian Smith
<taciturn_unquiet at hotmail.com> wrote:
>
> Hi all,
> I'm thinking of making a controller for my synth. I'm going to fashion it after a concertina. It's going to be a CV controller, not MIDI. I want to etch the buttonboard like a commercial keyboard to reduce the amount of rat's nest. My question is this: The black stuff that covers the contact points on commercial keyboards, what is it? where do I get it? and Is it really necessary?

Well, Dan.

Or was it Ian.. think it over. Goo to copper is so yesterday and You
still need a matrix to read that sort of keyboard. Move one.

Samppa