Ludwig,
I've looked at all of the linked pages.? I don't see any of the obvious things as problematic for me, but I'm not happy with the solder joints on the binocular T507 transformer so I pulled it off of the board.? I've re-wrapped it and I've ordered a length of 22 awg bare copper wire and some 1 mm i.d. PTFE tubing to make the primary legs.? I don't like the fiddly-ness of trying to scrape the enamel and get everything exactly right, so hopefully the bare wire with tubing makes for a more reliable solder joint without excessive fuss.? Should arrive on Thursday or Friday after assembly, we'll see how the SWR sweeps go and I'll post the results... As always, thank you for your generous advice.
73,
Spencer WD4AWD