I would imagine there must be a very cheap source of hall effect
devices, as most floppy and CD-Rom drives use typically three of them
in their hub motors.
Also don't forget to consider reed switches, which are pretty cheap.

On Wed, 27 Feb 2002 10:56:32 -0800, you wrote:

>Thanks for the tip. Those look interesting but they certainly aren't
>cheap. Any input on how these stack up in performance against Hall
>Effect or Reed devices? (dis)Advantages? Thanks. Cheers, Kevin
>
>Larry G. Nelson Sr. wrote:
>
>> Take a look at GMR devices from http://www.nve.com.
>> They have switches "digital output" and analog outputs.
>>
>> At 10:21 PM 2/20/02 +0000, you wrote:
>>
>>> Has anyone had experience with Magnetically activated switches? I am
>>> looking for experience and insight with a "behind the panel" =
scenario.
>>> Just need one input. Specifically I'd like to learn about good =
devices,
>>> hidden 'gotchas', low cost alternatives, etc. Thanks and appreciate =
any
>>> and all insights. Have a great day
>>>
>>> Cheers,
>>>
>>> Kevin
>>>
>>> PS: If this is really and [OT], just let me know and I'll be happy to
>>> change the subject. Thanks.
>>>
>>> --
>>> http://www.piclist.com hint: To leave the PICList
>>> mailto:piclist-unsubscribe-request@mitvma.mit.edu
>>
>>
>> Larry G. Nelson Sr.
>> mailto:L.Nelson@ieee.org
>> http://www.ultranet.com/~nr
>>
>> --
>> http://www.piclist.com hint: PICList Posts must start with ONE topic:
>> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
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>>
>>

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