> To my knowledge there are no systems that generate the secondary voltage
> directly from the magnet/coil arrangement - and spark timing would be a
> major problem with this system anyway.

Hmm.  I'll have to examine my lawnmower more closely.  I had so far thought
it had only a magnet on the flywheel going past a stationary coil, but there
could be a primary and contacts buried somewhere I haven't gone yet.

As far as the timing though, I don't see why that would be a problem.  The
magnet has to be mounted at the right angle on the shaft, but that is no
different from the care needed to mount whatever opens the contacts.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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