After looking at documentation for several versions of the BITX and others based on the original design, I decided to use the circuit of the BITX version 3b. First board I started with was the
Audio /Balanced Modular. I am using 'Muppet' style layout for the circuit boards, using double sided circuit board material. This should give a nearly solid shield between stages.
Most of the 'Muppet' boards I have seen use Express PC software to do the layout, but since I am more familiar with Eagle cad I went with that. Only drawback was that I had to manually layout the ground pads.
After playing with the layout for a while I realized this will be a fairly crowded board, and even had to stretch it out a little to get everything to fit. I did the layout as if I were going to use 1206 size surface mount components, and then placed a .1" square over each pad. This will give me the option of using either leaded or SMT components if I desire..
After etching the board I installed the connectors and checked how well it fit on the back-plane.
The board fits nice and comes down to the top of the back-plane, hopefully this will give adequate shielding between stages.
Not to start stuffing and testing the board.