The annual Hood to Coast running relay is understandably celebrated as a signature Northwest event. But if you’ve ever participated, you know that it involves a lot of motor vehicles. What a hassle!

Interested in DIY a simple electronic impulse relay module? T. K. Hareendran designs an impulse relay circuit that mimics the functions of a conventional electromechanical impulse relay. This module ...

With a few mouse clicks you can easily purchase Solid State Relays (SSRs) online. Or you can make one at home with a handful of different electronic parts. The question is– should I buy it or make it ...

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