[sdiy] Keyboard style switches for synth keyboards? Keys from PBT plastic?

[Ben Stuyts]

> On 6 Feb 2021, at 03:31, Brian Willoughby <brianw at audiobanshee.com> wrote:
> 
> I like the idea of polyphonic aftertouch using Hall effect or even optical - if anyone is making the latter.

Didn’t someone make a replacement keybed switch pcb for a Minimoog at one time, using optical sensors?

… ah yes: Chris Hewitt did that: http://www.thisoldsynth.com/Optokey.html

Ben