The second output terminal 131 of the microprocessor 13 is connected to a base electrode of {TAIL ~ the sixth transistor} 144 via {HEAD ~ a diode}  
The second output terminal 131 of the microprocessor 13 is connected to a base electrode of { TAIL ~ the sixth transistor } 144 via { HEAD ~ a diode }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH