Most preferably {HEAD ~ the filter tuning circuit} and the oscillator tuning circuit are formed on {TAIL ~ a single Integrated circuit} 
are formed on
Most preferably { HEAD ~ the filter tuning circuit } and the oscillator tuning circuit are formed on { TAIL ~ a single Integrated circuit }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL