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

Sunday, March 15, 2026

A Personal Thread

Through all these years, through all the work and teaching and quiet accumulation of expertise, another story was unfolding.

I had joined the Air Force to support my family after my father's heart attack. That commitment never ended. Even after my siblings graduated, found their jobs, married, and moved away, I remained. As the eldest son, I took on the role of caregiver for my aging parents.

After father passed on, I continued to care for my mum, to be present, to fulfill the role I had accepted so many years before.

It wasn't easy staying single all those years.

My mother, like mothers everywhere, would often bring up the subject of starting my own family. Gently at first, then more persistently as the years passed. She worried. She wondered. She hoped.

I would just smile and tell her, "When it comes, it comes."

And then, in my early forties, it came.

Through the help of a friend, I got to know this wonderful woman. Her name was Bernice. She was kind, intelligent, patient—all the qualities one hopes for in a life partner. We connected in ways I hadn't expected, hadn't even realized I was missing.

A little late, perhaps. Most people start families earlier. Most people have decades together before retirement approaches.

But as they say: better late than never.

 

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