Oops, just realised I put the last update on my DSO Shell build into the Mail Day Thread… 
Well, it’s sort of still not working, but I can occasionally get what looks like a signal:
I’ve no idea if this is how you’re supposed to use it or not, severe problem between keyboard and chair:
It just seems to pin the trace along the top of the screen:
I guess the next step is top go back and check that I put everything in the right place and that there’s no bad joints…