In the spirit of the SDR Coherer photographed by Alberto I give you the SDR Crystal Set, the latest in SDR hardware technology. Very cutting edge.
No further comment... Someone might build it in a few months and tell us about it. If you do not see the circuit diagram click here: SDR Crystal Set <http://groups.yahoo.com/group/soft_radio/files/KA9RZA/Crstal%20Set%20SD\ R.gif> Dan
