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