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Bruce’s story about his foot and a half long board reminds me of a couple of things. First, Bruce, I appreciate and understand why you built it this way and it is more important to do this than to worry about small size and not do it at all. Do what works for you.
In general, when I attempt to make a prototype the finished unit the result is failure in terms of “packaging” and appearance. It is better to use the prototype as a parts source and when the operation of the circuit is up to snuff then rebuild it on a new board. I have also learned to build the circuit then find a box to put it in, not the other way around. If I pick a box first things don’t seem to fit after the circuit is built.
The other thing the “long and narrow” board brings to mind is a story about a pilot and co-pilot who found themselves in a situation requiring an emergency landing. A runway was sighted but it was very short. They both sweated and strained to bring the plane safely down and after they came to a stop inches from the end of the runway they reflected on the experience. The pilot remarked “That sure is a short runway, must only be a 100 yards or so long.” The co-pilot looked side to side and said “Yah, but it must be a mile wide!”