[SEL] Ignitor question

[Germoamer at aol.com]

In a message dated 6/29/2008 10:54:52 PM Eastern Standard Time,  
randmingold at hotkey.net.au writes:

If you  use the primary windings of a car coil, 12v battery, Bat- to earth, + 
to  the coil, to igniter,igniter, and the engine fires up ok, then you have a 
 
weak LT mag/generator


Reg,
 
I use this trick many times, but I have a question concerning this hook  up.  
Some ignitor points are normally open, and some are normally  closed.  The 
ones that are normally closed will burn the points when hooked  to the 
battery/coil because the circuit is closed until it trips.  The ones  that are normally 
open do not burn because the circuit is only closed for an  instant when it 
trips.  So, my question is what determines the normally  open points versus the 
normally closed points?  

Tom  Schmutz
Concord,  Va.
germaoamer at AOL.com




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