Step one was to organize all the parts. I labeled all the packs and laid them out according to part number. I also printed out several build photos for reference, and laid out all the tools.

I check each part as it comes out of the bag to make sure it has the proper value. I even measured the resistance of each resistor. This was certainly not necessary, but gave me peace of mind in knowing there were no mistakes.

During layout I made sure each component value could be seen in a photograph. Others may want to build based on this work, so I wanted to make sure they could check values. If you build from these photos, NOTE that there are several wires under the board that were not originally that way in Ramiro Silva's drawings. I ran wires up into the turrets from below to get a clean layout.

Here is a close-up of my component attachment technique. We make sure to get a very good mechanical connection. None of the joints in the photo have been soldered. The amp would be noisy, but would probably work with no joints soldered.

Here are the results of the first board build session.
Next we'll add the ground plane and the rest of the connector wires.