{HEAD ~ The input end} 411 of the heating mechanism 41 is connected with a power source end 421 and {TAIL ~ the collector} of the transistor 422 
is connected with
{ HEAD ~ The input end } 411 of the heating mechanism 41 is connected with a power source end 421 and { TAIL ~ the collector } of the transistor 422
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH