I found this part of the article interesting in its "spareness": > Final assembly was quite challenging because you have to put all of the resistors and diodes

I found this part of the article interesting in its "spareness": > Final assembly was quite challenging because you have to put all of the resistors and diodes in one side and then try to slide them across and into the right hole on the other side. It’s a rather tedious process, but it works. That description seemed to echo "cordwood construction" for those modules, but I wanted to know if this was actually the case. The best I could find was this image of a CDC 6600 logic module: https://upload.wikimedia.org/wikipedia/en/thumb/6/64/CDCcordwood1.jpg/300px-CDCcordwood1.jpg https://upload.wikimedia.org/wikipedia/en/thumb/6/64/CDCcord... ...cordwood construction. From what I understand, such modules allowed for greater part densities (and probably better airflow for cooling), but at the cost of repairability: Since they were made with thru-hole components, soldered on one side, if a component in the middle of the board failed, it was a very time consuming task to unsoldered all the parts on one side to be able to separate the halves to repair the module.