[sdiy] Reed Switch and Magnet Keyboard

[ian esten]

the polivoks (a russian synth) also has reed switches that are closed by
magnets on the bottom of the keys. the magnets are a little bit wider
than the reed switches, and come fairly close to the switch when making
contact. it works really nicely. one thing to be careful of is to make
sure that you mount the magnets securely! one of the magnets fell off
when my polivoks was shipped to me, and stuck to its neighbouring
magnet, meaning that there was always a note on!
ian


On Wed, 2003-12-10 at 08:11, Ray Wilson wrote:
> Hi Scott (and list)
> 
> You mentioned that you had made a keyboard using reed switches and magnets.
> I want to outfit a set of piano keys in this manner and am interested to
> know how you kept adjacent key switches from being activated together. I
> have a source for some nice inexpensive reed switches and magnets of various
> sizes and would appreciate your suggestions (and anyone elses who wants to
> chime in).
> 
> Thanks