Likewise, the pulse train fed to the base of transistor Q2 has a duty cycle less than 50 percent but is delayed one half period from the pulse train fed to {HEAD ~ the base} of {TAIL ~ transistor Q1} 
of
Likewise , the pulse train fed to the base of transistor Q2 has a duty cycle less than 50 percent but is delayed one half period from the pulse train fed to { HEAD ~ the base } of { TAIL ~ transistor Q1 }
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 OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL