Yeah;the breadboard PC is what I thought you meant. It isn't hard to etch PC traces but in the prototype stage it probably isn't wise. Have you thought about what you would biuld with the extra trans? They told me they would take the extras back if you needed them too. Even if we found a good use there is still one extra unless someone else here wants to build their amp with it. They are real nice pieces of work so anyone out there it's not too late! And cheap too, you won't get anything like them for anywhere near the price. Now's the time to get rid of those cheap peanut tube pre-amps. Believe me I noticed a huge difference when I went from 12ax7 to 6sn7's in my home system.