keyboard contact rubber fun

[Martin Czech]

:::Dear Martin 
:::know I know why the contacts sometimes need changing .
:::I think it would be possible to use reed contacts and magnets to replace
:::the rubber contacts ....might it also be possible to use hall effect
:::devices ?

No, it must be passive, 76 keys gives 76 times the power consumption
of an otherwise nice hall sensor, much too much for the often
cheap power supplies.

Yes, velocity means two reeds, one magnet.

m.c.