Quote:
Originally Posted by Maarten
I'd guess the 027 date code could be an IC that was replaced later on.
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I would've thought the same, but this is where it gets interesting. That board was built for a prop in a movie which was released in the spring of 1980. After which, the board was never used again. To make it more certain it wasn't simply replaced, there was a duplicate backup board which was never used and it has the exact same IC on it with the same 027P.
