The control voltage is selected in such a manner that it is dependent on {HEAD ~ the size} of {TAIL ~ return stroke} in order to compensate the alteration in the return stroke 
The control voltage is selected in such a manner that it is dependent on { HEAD ~ the size } of { TAIL ~ return stroke } in order to compensate the alteration in the return stroke
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH