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The conclusion of my teardown of the donated Saturn V LVDC logic page assembly board. Here I go back to the workbench and finally get the right techniques for depotting, and I compare the actual logic devices on the board to available documents found online, and lastly I am able to build a working model of the AA logic package on a breadboard and demonstrate how it works.
Donate to help fund my YouTube Channel at http://www.frantone.com
Dave Jones at EEVBlog receives the LVDC page assembly board in Mailbag #561- http://www.youtube.com/watch?v=vCRHGr0RfkM
Read more details of what I found on my Science Blog here - http://www.frantone.com/designwritings/design_writings7.html #LVDC3
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
Fran's Daily Updates - http://www.contourcorsets.com/daily/daily.html
The conclusion of my teardown of the donated Saturn V LVDC logic page assembly board. Here I go back to the workbench and finally get the right techniques for depotting, and I compare the actual logic devices on the board to available documents found online, and lastly I am able to build a working model of the AA logic package on a breadboard and demonstrate how it works.
Donate to help fund my YouTube Channel at http://www.frantone.com
Dave Jones at EEVBlog receives the LVDC page assembly board in Mailbag #561- http://www.youtube.com/watch?v=vCRHGr0RfkM
Read more details of what I found on my Science Blog here - http://www.frantone.com/designwritings/design_writings7.html #LVDC3
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
Fran's Daily Updates - http://www.contourcorsets.com/daily/daily.html
Loved you investagation of this
For passive diode logic and individual transistors, you don't need VCC/GND. Whole cards were considered unitary devices, not single HICs (Hybrid ICs). At that time there were no widely acknowledged supply or logic voltage levels (even though TTL existed already).
Thank You for this!
Most interesting, I always assumed Rockwell produced most of the early electronics and maybe Raytheon as a second? Insight on legacy space systems does have educational value. Great post!
Goooolly, IBM documented the crap out of that little board. Interfacing should be a no-brainer. But no schematics. Guess it's reverse-engineering to the rescue.
welcome to the US government never what you see, it always what you don't see
i would send a sample of potting material to a chemical lab for breakdown, that would tell you the chemical composition that would melt the potting mat without destruction to the inter-workings
neet videos ,I wish you would show a modern chip insides next to the nasa board,interest stuff ,if the ever go back to the moon ,it would be great to See the differences,because we have come so far with computers ,it was great when they were going to the moon coverage when I was a lot younger.thanks for shareing
There’s nothing like figuring it out for yourself in real life. Too many people live online not in real life. I have that same multi meter in my tool box. One of my many.
Great work. Thanks for sharing! I recently visited Huntsville Space and Rocket center and was really intrigued by the Saturn V computing modules on display there. There wasn't any description of the logic type in their display, so I'm really happy to have found your videos on the LVDC.