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If only we could ask the engineer designed the module “why did you design it this way”?

Perhaps something to think about when writing code. It’s not always enough to know what it’s doing. Leave a comment with the why :)

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I guess the obvious next question is whether NASA has documentation for this stuff which might be obtainable. (I don't recall whether Ken has already answered this in some other forum/thread.)

Mike Stewart has made a huge effort to dig up Apollo documentation from various archives. For the updata test box, he eventually found a high-level functional specification. It mostly confirmed what we had already figured out. We haven't found any detailed information on this box, and nothing about the internal modules. But maybe we'll be lucky and some will turn out.

The virtual AGC site has links to a lot of Apollo documents, with a focus on the AGC: https://www.ibiblio.org/apollo/links2.html

In the process of archiving every document on that page, thank you! I'd love to have a full collection of Apollo documents; any other resources/websites I should know about?

The real resource is the National Archives and Records Administration (NARA). The problem is that you need to give them the number for the document you want and then pay up to $4 per page.

As far as scanned Apollo documents, archive.org has a bunch.

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