I've spent a couple of hours comparing the schematic to the board Adrian, and I can't find any errors. I think the 1205 100pf caps are a nice touch; gets rid of the stray capacitance. Farhan, those Omron relays are cheap and pretty good, I hope you keep those in there, and not just because I have some in my junk box.Hi, Hi. If Farhan doesn't find any errors, I Think I'll run some of these boards. Do you have a top part screen? Jerry K5LRU