a control and amplifier means, said {TAIL ~ controller} and amplifier means being in electrical, functional communication with said electrical power source and with said first oscillator and with said second oscillator, and being further in {HEAD ~ functional communication} with said analog switch 
a control and amplifier means , said { TAIL ~ controller } and amplifier means being in electrical , functional communication with said electrical power source and with said first oscillator and with said second oscillator , and being further in { HEAD ~ functional communication } with said analog switch
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH