A minor correction if I may. A regular transformer has two separate
windings. An ignition coil is a special kind of transformer called an
autotransformer. That means the primary and secondary windings are actually
a single winding with a tap close to the primary end. I did a Google search
and found:
http://www.sentex.net/~mwandel/cannon/sparky.html for an example.
- Hugh
>
> An ignition coil actually consists of two different coils of copper
> wire. The primary coil is made up of, let's say, 100 turns of copper
> wire of a certain gauge. The secondary is made up of 2000 turns of a
> smaller gauge wire.
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