Consider the circuit shown above. The output should be the vote of the three flip flops. The switch to the right lets you inject a failure by selecting the invert output on that one stage ...

What he really needed in this case is a flip-flop but lacking a chip ... We’ve embedded video of the circuit controlling an LED after the break. This IC ends up in a lot of projects so dig ...

Fairchild and Raytheon are currently selling evaluation quantities of the first logical elements in their respective six-block lines—a Micrologic flip flop by Fairchild and a NOR logic circuit ...