The world is digital, but sometimes the power of analog is just what is needed. The analog multiplier is a case in point with ...

You know what’s cool? Using your engineering knowledge to solve problems that you have while building something. This is exactly what [Reinis] did when his 3D printer’s endstop wasn’t working.

We are always impressed with something so simple can actually be so complex. For example, what would you think goes into an analog computer ... doesn’t load the circuit connected to Z.

Take, for instance, the analog multiplier. At its simplest, it’s a circuit that leverages two analog signals and produces an output which is their product. The same circuitry can also be used to ...