> I don't believe there is a cap, there is only one coil, TCI's ( Transistor Controlled Ignition) has no cap...the transistor control is rigged to 'Fire' at a predetermined current as flux builds in the coil. Those 'monolithic' systems are applied on the cheaper, less powerful chainsaws and lawnmowers. Luis's chainsaw has a three component CDI (Capacitive discharge Ignition) offering, (according to the chainsaw manual) a 'hotter and more precise spark (page 48), which is applied on Shindaiwas 'Larger, higher performance saws' The capacitor is intergrated into the 'Exciter coil' as they call it. On Mon, Nov 26, 2012 at 4:55 AM, KPL wrote: > That's how it's done on lawn mowers and similar equipment. No cap, and > coil dies quite frequently. > I would love some additional power available from there, for those > late evenings when you want to finish your lawn, but it is already > dark outside:) > > > > > I don't believe there is a cap, there is only one coil, and the magnet > produces the high voltage directly. The timing is done by the position of > the magnet relative to the coil. The magnetic field and the pole on the > coil are shaped to get the rapid change of magnetic field that is require= d > to generate the high voltage. > > -- > > > -- > KPL > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 Perry Curling-Hope Research and Development --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .