vfo in the polyakov

DC: Polyakov The First DC receiver - Radio Frequency , ( full schematic , refer to last section , the bottom of this log) truly, i ever built some junk Superheterodyne already, but what is the best serious receiver for a beginner like me? ok,
DC-80 Direct Conversion Receiver for 80 Meters The DC-80 A Direct Conversion Receiver for 80 Meters with "subharmonic" VFO in the "Polyakov" style July 15, 2009 by Rick Andersen, KE3IJ [Revised February 23, 2010]