Great John! Just be aware, I do not know what the true interstage impedances really are. Maybe that has been calculated or stated in the past but I have not seen it that I remember. The actual impedances should be used and not just assume it is 50 ohms. I assumed that only for this proof of concept. It is pretty clear from the traces if you assume 600 ohms for the filter though, you will be close enough.
WA8TOD
