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Old 11-10-2008 | 09:40 PM
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nitro joe
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Default RE: $25 CDI

ORIGINAL: Bigboat

Most common hallsensors are uni-polaire.
A uni-polaire needs only a south form the (neodymium) magnet to switch on / off
A bi-polaire sensor needs a south to switch on and a north to switch off.

http://parts.digikey.co.uk/1/1/87891...37-wl-7-b.html
Thank you,Bigboat.
I've wondered about that,nicely put.
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