MIDI-guitar (was: Touch Switches/TS instruments )

[Theo]

Tought about that too.
Srtings have to handel a lot of tention and are subject to mechanical wear.
All in all resistive wire strings seems not so easy.

Maybe resistive frets could be a possibility.
Some one knows about a hard reststive material?

Cheers Theo

----- Original Message -----
From: Ingo Debus <debus at cityweb.de>
To: <synth-diy at node12b53.a2000.nl>
Sent: Monday, May 15, 2000 3:53 PM
Subject: Re: MIDI-guitar (was: Touch Switches/TS instruments )


>
>
> Harry Bissell wrote:
>
> > Other people have tried the resistance of the string, constant current,
etc.
>
> Why doesn't this work? Seems quite simple to me: make strings of
> resistive wire (Konstantan etc.), connect all frets to ground, insulate
> the strings from each other and measure the resistance between end of
> the string (at the bridge) and ground. Maybe problems with bad contact
> between frets and strings?
>
> Paul Perry wrote:
>
> >Yeah, but, since the two frets are adjacent, you just need a bit of
> logic to
> >say, 'hey the 3rd string touches fret n and n+1, that means n'
> >Now, you're going to come up with a counter example where there are more
> >than one
> >touching the same fret.. but, given that there are only 6 strings &
> they are
> >only being fretted at a maximum of two adjacent points..
>
> Like for a conventional switch matrix, this would require a diode in
> series with each "switch". Maybe the strings and frets can be made of
> semiconductor, strings p-doped and frets n-doped? ;-)
>
> Ingo
>