alt Hacker NewsEric is a very well-known reverse engineering hobbyist. He's RE'd several boards over the past several years, all are on his github. He also has built several novel designs from scratch (Such as the Graphics Gremlin - a FPGA-based MDA/CGA card that outputs to a VGA monitor).
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naturalmovement • yesterday at 6:57 AM
Cool.
Still doesn't change the fact that this is an untested board design that relies on a difficult-to-source obsolete chip.
If some pins are swapped by mistake e.g. power and ground you are screwed.
Caveat emptor — unfortunately this was buried in the description.
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You didn't mention that he also co-authored the book "Open Circuits" that shows cross sectional images of a wide variety of electrical and electronic components. The pictures are beautiful.
His "secret" is basically sanding. Lots and lots of sanding.
https://www.amazon.com/Open-Circuits-Beauty-Electronic-Compo...