Doing MIDI With Discrete Logic Is Neat, If Not Particularly Useful

MIDI is normally baked into the chipset of a synthesizer, or something you use a microcontroller to handle. But that’s not the only way to speak the language! [Kevin] decided to have some fun…

A Simple EMF Detector And Electroscope You Can Make From Junk Box Parts

Electromagnetic fields are everywhere, all around us. Some are generated naturally, but in vast majority of cases, it’s we humans that are generating them with artificial, electronic means. E…