Hi Adam, I uploaded on photos section,SCR Preselector, some pictures that could give an idea about. Also you can try how it works downloading the software program in my web site at projects page . It is an executable file, don't need be install, runs under Windows XP and Vista32. Now I am working on si571 oscillator. That lets sincronize the SCR Preselector with the LO, either working stand-alone or from PC via USB, then we will have the completed RX.
73s Juan M0WWA
