I've had some requests for PCB patterns and I'm sorry to say that I don't have any. This was a 'one-off' project from the beginning, so I didn't put a great deal of effort into extensive documentation. But I did scan what's left of my original notes and scratchings and hopefully this will help a little. All of the patterns are 'foil side' and not to scale, although a good picture editing program may be able to scale the patterns to etching size. The templates are drawn on 1/10th inch spacing graph paper.
The first drawing is of U3 through U7, and the actual template I used is next. This is the template for U1, U2 and the DAC. This is the template for the Logamp. And the template for the VCO is here.
Sorry, I wish I had more to put up, but this is it. We have a racecar that pretty much has all of my spare time now, but perhaps in the future I'll be able to devote some more time to my electronics projects.
Thanks for the emails and it gives me a good feeling that someone else may be able to get some use out of the sweeper. I used the heck out of it and it has a permanent place on my workbench.