{TAIL ~ The output} of the transformer is rectified by a diode and then filtered by {HEAD ~ a large capacitor} 
{ TAIL ~ The output } of the transformer is rectified by a diode and then filtered by { HEAD ~ a large capacitor }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD