{TAIL ~ fourth connecting means} connecting the emitter of {HEAD ~ the power} semi conductor to one of the terminal posts  
{ TAIL ~ fourth connecting means } connecting the emitter of { HEAD ~ the power } semi conductor to one of the terminal posts
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH