Meet Jan de Jong, a longtime Elektor reader and retired electronics enthusiast who has spent decades repairing with ...

Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides clear results in just seconds. For related tutorials and step-by-step build ...

Explore how a basic LED can be used as a tiny solar cell, generating measurable voltage under sunlight. This hands-on ...

The Arduino is a great way for hobbyists and pros alike to experiment with programmable objects, but it can be confusing for beginners without these tools.

The 34450A 5½ digit multimeter from Agilent Technologies is designed to turbocharge electronic test and measurement applications for industrial and educational use. The Agilent 34450A is the fastest ...