I tried the search term "fault-tolerant voter circuit NASA". The voter circuit itself is a single point of failure and I guess that NASA designed that to be fau

I tried the search term "fault-tolerant voter circuit NASA". The voter circuit itself is a single point of failure and I guess that NASA designed that to be fault tolerant. Figure 2 in this 1969 NASA report shows a TMR system with three voters but I'm not sure how that works https://ntrs.nasa.gov/api/citations/19690031505/downloads/19690031505.pdf https://ntrs.nasa.gov/api/citations/19690031505/downloads/19...