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

Saturday, March 21, 2026

Completing the Circuit


And so, here we are.

The full schematic of a life. Traced connection by connection, component by component, from the boy with the first spark to the man with six engineering books and a lifetime of memories.

Every path had a purpose, even when I couldn't see it at the time. The sacrifice that led me to the Air Force. The training that defined my skills. The mentors who taught me to see. The apprentices who carried the knowledge forward. The wife who believed when it was all she could offer.

The circuit is complete. Not finished—life continues, and who knows what new components may yet be added? But complete in the sense of coherent. Understood. Traced and mapped and made visible.

I look back at the journey and feel only gratitude. For the challenges that strengthened me. For the people who shaped me. For the work that gave me purpose. For the readers who made the writing worthwhile. Nothing that happened was wasted. Every moment contributed to the whole.

That's the beauty of a full schematic.

 

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