Odp: [sdiy] Reed Switch and Magnet Keyboard

[Roman]

One of my customers makes pedal boards for church organ and he uses
reed switches with great success. However the distance between adjacent
reeds is over 3cm and still he had problems selecting proper reed switches
and magnets. The smaller the better (reeds and magnets).
I don't know exactly what kind he uses, that's his secret.
He hasn't used any magnetic shielding tho.

Roman

----- Original Message -----
From: Scott Stites <scottnoanh at peoplepc.com>
To: <ifixaudio at hotmail.com>
Cc: <raywilson at comcast.net>; <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, December 10, 2003 4:07 PM
Subject: RE: [sdiy] Reed Switch and Magnet Keyboard


> Hi Ray, Jim, List,
>
> The reed switch idea actually hasn't gotten implemented.  IIRC, it was at
the
> time Harry gave the excellent tip about the 800 mA Power One's at MPJA, I
saw
> they had little round button magnets and reed switches, and I was mulling
it
> over.  I got sidetracked and never ordered any.  The reed switches are
there, but
> the little round magnets don't seem to be there any more (though there are
some
> smaller rectangular 'catch' type magnets for 30 cents apiece there that
might
> work):
>
> http://www.mpja.com/
>
> I'm sure I've seen the little round magnets at surplus houses as well.
>
> I recall having a bit of concern that adjacent magnets might trigger
adjacent
> switches, also.  In the time since, though, I either dreamed I read or
actually
> read of at least one commercial design that used reed switches for a
musical
> keyboard.
>
> Anyone on the list having more information on this subject, please let us
know!
>
> Cheers,
> Scott
>
>
>
> On Wed, 10 Dec 2003 09:40:59 -0500, "Tim Johnson" wrote:
>
> >
> > Hi Ray,
> > I like the idea. Where can I get the switches.
> > (I scrapped a LOT of defective optical pickups when I worked at SONY and
> > have 5mmx5mmx2mm  magnets but no switches.
> >
> > Jim
> >
> > >From: "Ray Wilson" <raywilson at comcast.net>
> > >To: "Scott Stites" <scottnoanh at peoplepc.com>
> > >CC: "Synth-Diy" <synth-diy at dropmix.xs4all.nl>
> > >Subject: [sdiy] Reed Switch and Magnet Keyboard
> > >Date: Wed, 10 Dec 2003 06:11:17 -0700
> > >
> > >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
> > >
> >
> > _________________________________________________________________
> > Our best dial-up offer is back.  Get MSN Dial-up Internet Service for 6
> > months @ $9.95/month now! http://join.msn.com/?page=dept/dialup
>
> ________________________________________________
> PeoplePC:  It's for people. And it's just smart.
> http://www.peoplepc.com