[sdiy] Touch switch and theremin chips

[Fraser, Colin J]

> -----Original Message-----
> From: Toby Paddock [mailto:tpaddock at seanet.com]
> Sent: 23 February 2000 14:54
> To: 'synth-diy at mailhost.bpa.nl'
> Subject: [sdiy] Touch switch and theremin chips
> 
> 
> I saw these chips and was wondering if anyone had tried them.
> QProx (tm) Charge-Transfer Capacitance Sensors
> Quantum Research Group Ltd
> http://qprox.com/
> 
> Touch switches:
> QT60320 - 32 key matrix
> QT110 family - single channel
> Would this be useful to repair dead switches on synths?

I see their sample matrix has a '15-segment interpolated fingertip slider
control (replaces a volume control)'.

I wonder how many segments they can manage max ?
Stick led bar graphs under a panel of sliders, and you could have a cool
synth programming interface, with visual feedback of recalled patch
parameters...

Colin f