the gate turn off {HEAD ~ thyristor} having {TAIL ~ low inductance connections} to the snubber circuit 
having
the gate turn off { HEAD ~ thyristor } having { TAIL ~ low inductance connections } to the snubber circuit
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH