{HEAD ~ a timing circuit} in electrical communication with {TAIL ~ said output means} of said electrical energy source 
{ HEAD ~ a timing circuit } in electrical communication with { TAIL ~ said output means } of said electrical energy source
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH