If you have ever read advanced textbooks or papers about electronics, you may have been surprised to see the use of complex numbers used in the analysis of AC circuits. A complex number has two par… ...

This schematic diagram is from one of the many available on the internet. As it turns out, countless versions of this celebrated design are easily obtainable as readymade model railway CDU modules. In ...

When a fuse is in good order, the indication circuit is off because the fuse shunts it. When a fuse burns out, the indication circuit starts working. Capacitor C 1 reduces the ac-mains voltage, and ...