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