For example, an output signal corresponding to, optionally proportional to, the extent of {HEAD ~ rotary adjustment} can be generated as {TAIL ~ a regulating function} 
For example , an output signal corresponding to , optionally proportional to , the extent of { HEAD ~ rotary adjustment } can be generated as { TAIL ~ a regulating function }
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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL