I believe that the unit with the brown paper mother board was a "homebrew" board,
now that I re-read the item (photos) I posted.
However the unit looks neat and well-done.
Roland F. Harriston, P.D.
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From: "Harvey White madyn@... [Homebrew_PCBs]"
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T
>Anyway, I know I could get away with being inexact here. But the point of the exercise is to get as close to original as possible, which is why I went to the trouble of getting 1973 vintage chips.