In {TAIL ~ a preferred embodiment} {HEAD ~ the rectification function} may be carried out by diodes and low pass filtering may be provided by respective resistor capacitor pairs 
In { TAIL ~ a preferred embodiment } { HEAD ~ the rectification function } may be carried out by diodes and low pass filtering may be provided by respective resistor capacitor pairs
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH