a solder bead connecting said inner edge to {HEAD ~ said cylindrical tube} for conducting heat from said cylindrical tube to {TAIL ~ said thin plate} 
a solder bead connecting said inner edge to { HEAD ~ said cylindrical tube } for conducting heat from said cylindrical tube to { TAIL ~ said thin plate }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL