There's an almost current schematic on the "Theory of Operation" page: http://moonbaseotago.com/onerng/theory.html http://moonbaseotago.com/onerng/theory.html

There's an almost current schematic on the "Theory of Operation" page: http://moonbaseotago.com/onerng/theory.html http://moonbaseotago.com/onerng/theory.html few (any?) chips that do 2.5GHz RF come in chips with traditional pins (too much inductance). QFNs are completely hand solderable (with hot air, solder paste and a pair of tweezers)