In {TAIL ~ an alternative embodiment}, {HEAD ~ apparatus} 38 may have three discrete operating states: “HIGH,” “LOW,” and “OFF” which may be selected by “flipping” an appropriate switch 
In
In { TAIL ~ an alternative embodiment } , { HEAD ~ apparatus } 38 may have three discrete operating states : “ HIGH , ” “ LOW , ” and “ OFF ” which may be selected by “ flipping ” an appropriate switch
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH