Posted by Janicholson on September 29, 2018 at 06:09:23 from (97.112.33.126):
In Reply to: what does it do posted by pinball on September 28, 2018 at 22:19:58:
RM-MN is on to it. The spark across the plug in these "Kettering" ignitions jumps more than one spark at points opening instant. The voltage generated by the magnetic collapse is seriously AC like as the energy dissipated. Look up ignition spark lines primary and secondary. The coil and condenser can be said to "ring" between them, with the first blush of current being absorbed by the condenser. As the high voltage energy goes away, the voltage between the now open points is back at ignition circuit level, and allows the points to close on that much lower voltage. The ringing voltage can approach 300 volts peak to peak. Jim
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