To My Readers



If this is the first time you're visiting my blog, thank you. Whether you're interested or just curious to find out about PCB reverse engineering (PCB-RE), I hope you'll find something useful here.

This blog contains many snippets of the content in my books to provide a more detailed overall sampling for my would-be readers to be better informed before making the purchase. Of course, the book contains more photos and nice illustrations, as evidence from its cover page. Hopefully, this online trailer version will whet your appetite enough to want to get a copy for yourself.

Top Review

I started doing component level repair of electronics with (and without) schematics more than 40 years ago, which activity often involves reverse-engineering of printed circuit boards. Although over the years my technical interests have shifted into particle beam instrumentation, electron microscopy, and focused ion beam technology fields, till this day——and more often than not——PCB repairs have returned multiple multi-million-dollar accelerators, FIB, and SEM instruments back to operation, delivering great satisfaction and some profit.

Many of the methods described by Keng Tiong in great details are similar to the approaches I've developed, but some of the techniques are different, and as effective and useful as efficient and practical. Systematic approach and collection of useful information presented in his books are not only invaluable for a novice approaching PCB-level reverse engineering, but also very interesting reading and hands-on reference for professionals.

Focus on reverse engineering instead of original design provides unique perspective into workings of electronics, and in my opinion books by Keng Tiong (I've got all three of them) are must-read for anybody trying to develop good understanding of electronics——together with writings by Paul Horowitz and Winfield Hill, Phil Hobbs, Jim Williams, Bob Pease, Howard Johnson and Martin Graham, Sam Goldwasser, and other world's top electronics experts.

Valery Ray
Particle Beam Systems Technologist

Monday, March 16, 2026

The Urge to Write


Being able to live a fulfilling life is one thing. Being able to pass on what you know to posterity is entirely another.

The urge to write had been growing for years. Quietly at first, then more persistently. It whispered to me during quiet moments at the workbench. It nudged me when I explained a concept to a junior engineer and saw understanding dawn in their eyes. It tapped me on the shoulder when I read technical books and thought, I could do this. I have something to say.

The urge to document. To capture what I had learned. To share it with others who might need it. But stepping out of my comfort zone—leaving a well-paid, promising career—was something most people would think twice about. Three times. Forever.

I was no different. I thought about it constantly.

I talked to Bernice about my dream of writing books. At first, she was taken aback. Her mind went to the obvious places: problems at work, burnout, the nine-to-five grind finally getting to me.

But after understanding where I was coming from, she advised that I take small steps instead of plunging headlong into it. I heeded her advice and arranged with my company to work part-time while attempting my first book.

This was another transitional phase of my career life. I looked forward to it with excitement and anticipation.

Will the dream of authoring my own book materialize? Or will it just be a temporary distraction—something I dabbled in and then abandoned when the reality of writing proved harder than the fantasy?

Only time would tell.

 

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