The power source includes {HEAD ~ a timing pulse generator} which synthesizes {TAIL ~ the timing signals} from the power source electric power frequency at the frequency required for defining 360° per machine cycle 
The power source includes { HEAD ~ a timing pulse generator } which synthesizes { TAIL ~ the timing signals } from the power source electric power frequency at the frequency required for defining 360 ° per machine cycle
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH