A circuit board from the Saturn V rocket, reverse-engineered and explained

https://www.electronics-lab.com/circuit-board-saturn-v-rocket-reverse-engineered-explained/

Ken Shirriff writes on his blog: In the Apollo Moon missions, the Saturn V rocket was guided by an advanced onboard computer system built by IBM. This system was built from hybrid modules, similar to integrated circuits but containing individual components. I reverse-engineered a circuit board from this system and determined its function: Inside the […]