The circuit in Figure 1 seems utterly simple but demonstrates unusual behavior. It produces an almost square wave of odd-integer quartz harmonics, including its main frequency. You can determine the ...

Everyone interested in analog electronics should find some value in this post. Of course, an effort has been made here to make the content understandable to relative newbies. Forget about complex ...

Oscillating chemical systems are present at nearly every popular chemistry exhibition – especially the ones that display striking colour changes. But so far there are very few practical uses for these ...