An electronic switch is associated with each ignition coil and has {HEAD ~ a trigger} which is operative in {TAIL ~ response} to an applied trigger voltage signal to cause the switch to conduct and discharge the capacitor through the ignition coil 
is operative in
An electronic switch is associated with each ignition coil and has { HEAD ~ a trigger } which is operative in { TAIL ~ response } to an applied trigger voltage signal to cause the switch to conduct and discharge the capacitor through the ignition coil
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH