Moreover, in accordance with the invention, overloading of {HEAD ~ the ECG amplifier} is prevented by provision of series connected and oppositely oriented zener diodes, and parallel connected diodes in {TAIL ~ series} with a blocking capacitor for blocking DC voltage 
Moreover , in accordance with the invention , overloading of { HEAD ~ the ECG amplifier } is prevented by provision of series connected and oppositely oriented zener diodes , and parallel connected diodes in { TAIL ~ series } with a blocking capacitor for blocking DC voltage
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH