ELECTRONICS AS A PORTAL TO OTHER HOBBIES

Electronics as a hobby is unique in that it touches upon just about every other technology or area of potential interest, from photography to cycling. Don’t feel you need to stick with pure electronics. Get out of your comfort zone and explore some of the many related technologies.

BUILD A BASIC AUDIO DISTORTION ANALYZER

Over the years with different companies I’ve worked for, I always had access to high-end audio THD (Total Harmonic Distortion) analyzers. I found these very useful for design work, debugging, and repair of audio equipment. Oftentimes, I have need for one but could never afford to own one — not even a used one. I thought this would be a worthwhile project, so this article describes how to construct one.

HOW TO SUCCEED AT CIRCUIT DESIGN BY LEARNING FROM THESE MISTAKES

Getting better at a craft often requires you to learn from your mistakes. Follow along with this circuit design to see where the problems and pitfalls occurred, so that you can accelerate your learning from someone else's errors.

THE PERCEPTRON CIRCUIT

The Perceptron circuit provides a hands-on way to demonstrate the principles of neuron operation, and also allows you to explore basic Boolean logic functions. Last but not least, it is a cool gadget to have sitting on your desk to impress your hacker and/or nerdy friends.

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