This site covers a wide range of electronic materials and solution. They have many tutorials covering topics for beginners to more advanced topics. Some of the topics that are covered in the tutorials ...

Reverse polarity is one of the most common causes of circuit failure, from hobby projects to industrial systems. The good ...

The DIY Electronic Siren circuit described here can create three different US-style siren sounds: DIY police, DIY ambulance and fire engine. The desired sound can be selected using switch S1. The ...