At the time, we pointed out that there was a triangle waveform ... pulling the output voltage high. And vice-versa for a high input voltage. This makes a rudimentary logic inverter.

In the timing diagrams of Figure 7.22 it is assumed that the first two represent the inputs are A and B and those below represent their complements, ANDing, ORing, NANDing, NORing, XORing, and XNORing ...

In many cases, you should examine the output of your circuits and vote on the outputs only. In some cases (like the Saturn computer) the logic was split into parts and each part was voted.

These circuits are part of a family of circuits that include differentiators, integrators, clipping and clamping circuits, pulse-timing and delay circuits, logic circuits, and switching circuits ...