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

Thursday, October 1, 2026

Transformation is Cultural


Many transformation programs focus primarily upon processes and technology. They redesign workflows, implement new software, and invest in equipment. These changes are visible and measurable. They can be planned, budgeted, and executed. Yet Engineering Sovereignty argues that lasting transformation occurs first within culture. 

Culture determines whether documentation is regarded as valuable or as bureaucratic overhead. Whether mentoring is encouraged or viewed as a distraction. Whether questions are welcomed or suppressed. Whether failures become opportunities for learning or occasions for blame. Whether engineers willingly share knowledge rather than protect it as personal capital. 

Without cultural transformation, technological transformation rarely endures. An organization may implement a knowledge management system, but if its culture does not value documentation, the system will remain unused. It may invest in digital twins, but if engineers do not trust the models, they will revert to intuition. It may establish mentoring programs, but if senior engineers are not rewarded for teaching, participation will be minimal.

Culture is not an abstract concept. It is the accumulated habits, values, and assumptions that shape how work gets done. Changing culture is difficult and slow—far more difficult than implementing new technology. Yet it is essential. Engineering Sovereignty cannot be achieved through processes alone. It requires a cultural commitment to learning, preservation, and stewardship that pervades the entire organization.