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 9, 2026

Headhunted


As the run-out date drew near, emotions ran high among the pioneer technicians. We had been through everything together—the setup, the training, the pressure, the pride. Now we faced a future that was suddenly open, uncertain, full of possibility.

Discussions buzzed in the cafeteria, the workshop, the moments between tasks. Plans and options. What we wanted to do when we finally regained our civilian status. Some opted to recontract with the Air Force. They had risen to senior ranks, earned comfortable salaries, built lives within the service. Another six years meant stability, familiarity, and job security.

Others considered doing something completely different. Anything but engineering. Sales had appeal—more interaction with people, and less time hunched over circuit boards. Insurance promised commissions, flexibility, a clean break from the technical world. A few adventurous ones intended to start their own businesses. Small shops, trading companies, ventures that would let them be their own bosses.

And me?

I decided to stick with electronics. It wasn't a difficult decision. It wasn't really a decision at all—more of a recognition, an acceptance of something that had always been true. Electronics runs in my blood. Still does. I couldn't think of doing anything else.

My transition from the air force to ST Electronics, a homegrown defense industry, felt like divine appointment. It started with a late night phone call out of the blue, two months before my contract expired. The timing couldn't be more perfect.

It was later that I learned the RSAF had purchased two RADCOM systems. One, as I knew well, was in our squadron, used for daily operations. The other had been acquired by ST Electronics, for a different purpose: future local support.

ST Electronics had the contract. They had the equipment. They had engineers eager to do the work. But they lacked something essential: hands-on experience with the RADCOM. Real experience, the kind you can only get by operating the system day after day, troubleshooting real faults, learning its quirks and capabilities.

They needed someone with that expertise, and I was the man of their choice.

 

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