[sdiy] Magnetic field

[Paddock, Toby]

I've had good cheap fun with Allegro hall sensors:
http://www.seanet.com/~tpaddock/mag2cv.html
http://www.seanet.com/~tpaddock/spin_lfo.html

Looks like the parts I used have been replaced by new ones:
http://www.allegromicro.com/hall/linear.asp

Later,
Toby Paddock

> 
> I know I've seen them in a databook somewhere but cant find them.
> 
> I'm looking for a little surface mount device that will measure the
> strength
> of a magnetic field.  This ring any bells with anyone?
> 
> The one I remember was physically very tiny, about 4mm square, 4 leads 2
> for
> power 2 for signal out.
> 
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