{HEAD ~ a relay} having {TAIL ~ a coil} connected to the collection terminal of the transistor and a switch connected between the power output terminal and the power output socket 
having
{ HEAD ~ a relay } having { TAIL ~ a coil } connected to the collection terminal of the transistor and a switch connected between the power output terminal and the power output socket
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL 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 OTH OTH