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Thanks muchly guys.
I guess being new to the art of PCB fabrication, I’m trying to figure out how I could get as close as possible to the appearance of the (we think) vintage boards seen in my ebay link.
When I asked Don Lancaster about the boards he used in the prototype, he said this:
“The original boards were G10 green. Original artwork was 4x tape and dots followed by litho camera reduction.”
I guess my question is, can I get green copper clad boards that look like the ones in my photos? I’ve read through the laser toner process and it seems to me if I get boards that visually look similar the end result shouldn’t be that much different if I use a newer (easier) process. But in looking around ebay, etc I’ve not seen anything that has quite the right vintage look.
I’m also curious as to how the person that created those ebay boards got all the markings in white on the top side (ie. the SWTPC logo, transformer footprint, etc). Any thoughts on that? I’m guessing Don didn’t have anything like that with his prototype boards.
Speaking of which, I may get an answer on what the prototype boards actually look like. I emailed the research department of the Computer History Museum that has that unit, and they offered to attempt to open it to have a look, provided it was designed to be opened and no damage will happen.
Brad