In FIG 1 a received television signal is applied to {HEAD ~ an input} of a radio frequency and {TAIL ~ mixer section} 5, which is further coupled to an oscillator 3 
In FIG 1 a received television signal is applied to { HEAD ~ an input } of a radio frequency and { TAIL ~ mixer section } 5 , which is further coupled to an oscillator 3
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH