{HEAD ~ The controller} 52 uses this approximate average to control {TAIL ~ the magnitude} of power to both electrodes 
{ HEAD ~ The controller } 52 uses this approximate average to control { TAIL ~ the magnitude } of power to both electrodes
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH