Dear Reader

The following is an excerpt from the Preface of my memoir. I have named it Dear Reader to sound personal to those who may decide to pick up the book and read the story of my engineering journey. Here you go...

The book you hold in your hands began not as a book but as a series of moments—small decisions, unexpected turns, challenges faced and overcome. For much of my life, I did not think of my journey as remarkable. I was simply doing what needed to be done: learning my craft, supporting my family, solving the problems that landed on my workbench.

It was only later, after thirty years in the engineering trenches, after I had written six technical books and begun to reflect on the path that brought me there, that I realized my story might have value beyond the circuits and schematics.

This is a book about electronics. But it is also a book about life. The two, I have come to understand, are not so different.

A circuit is a system of connections. Components linked by traces, signals flowing along paths designed for purpose. When the system works, we barely notice it. When it fails, we must face and resolve the issue—tracing the broken connection, identifying the failed component, understanding why the expected behavior has stopped.

Life is the same. 

We are all systems of connections: to family, to work, to dreams and duties and the people who depend on us. When life proceeds smoothly, we take it for granted. When crisis strikes—as it did for me, weeks after my polytechnic graduation, when my father's failing health rewrote my future—we must take charge and make sense of our own existence.

Why am I here? What matters most? Which way do I go when the path I planned is suddenly closed?

I am an engineer. I think in systems, in connections, in causes and effects. But I am also a son, a brother, a husband, a writer, and a witness to my own time. This memoir is my attempt to trace the full schematic of my life—to show you the components, the connections, the unexpected paths that current can take when it encounters resistance.

My life has had its share of setbacks and unforeseen circumstances. Yours likely has as well. That is the human condition—to face challenges we did not ask for, to walk roads we did not choose.

But here is what I have learned:

The road still leads somewhere. The circuit still completes. And the person you become along the way—the skills you develop, the wisdom you gather, the strength you never knew you had—that person is no accident. That person is you, forged by experience, connected to all that came before and all that will follow.

Keep your spirits high, reader. The path ahead may not be the one you planned. But it is yours, and it is leading you exactly where you need to go. Remember: you are never alone. Many have walked the journey before you, and many more will follow after you. "How can you be so sure?" you ask.

Well… I offer my story as proof.

 

Feeling Lost? Get the Memoir!

Recently, an ex-colleague from ST Electronics called me out of the blue. He sounded troubled and not the usual, confident person I knew a decade ago. After talking with him for five minutes, I realized he's feeling lost and apprehensive at the prospect of retirement. He is the same age as me.

Such feeling is not unique to people facing retirement after years of working; it can also happen to young graduates who are just stepping out into the world. What should I do? Which company should I join? Where can I find my place in the industry? And many myriads of questions that overwhelm the mind, be it starting out afresh, changing runway mid-career, or entering into the final phase of a work life.

This is the reason I wrote a book about my own engineering journey that spanned three decades from the air force days to the home-grown defense industry, and into my passion and calling as an author. For the first time, readers of my PCB-RE books can now take a peek into the inner world of the writer and understand why he took the paths, whether through necessity or by appointment. Friends who knew me since the early school days had read it and found gems of inspiration, and a better appreciation for the person I am.

For anyone who has ever wondered how things work—or how a life is built—this memoir offers a rare glimpse into a world of precision, problem-solving, and the hidden connections that shape us all.

Get your copy today! 

Retrofitting

Retrofitting is the process of adding new features, components, or systems to an existing product—features that were not part of the original design. One of the most significant retrofitting project I've done in my twenty-fives years with ST Electronics is upgrading the disc drive system on the RADCOM test station for the Republic of Singapore Air Force (RSAF).

Believe it or not, the RADCOM test programs—the very heart of its ability to diagnose E-2C avionics—were stored on magnetic cartridges. Not hard drives as we know them today. Not solid-state memory. Magnetic cartridges, about the size of a three-stacked 15-inch pizza, mounted in an HP7906 disc drive and run off an HP1000 host computer.

Over time, the disc access heads of the HP7906 drive built up ferrite dirt. Microscopic particles, accumulated through normal operation, clinging to the heads that read the magnetic media. And when those dirty heads passed over the cartridges, they could cause a head crash—the read head literally scraping against the magnetic surface, scratching it, destroying the data.

It happened more often than anyone liked. Cartridges that had worked for years suddenly became unreadable. Scrap. Trash. Years of test programs, lost to a few microns of ferrite dust. The RSAF was desperate. They had approached Grumman Aerospace—the original equipment manufacturer—for help. Grumman came back with an interim upgrade solution. Price tag: 1.5 million US dollars.

The RSAF project manager reached out to us. After researching for alternative solutions, we decided on the magneto-optical (MO) drive. It uses laser and magnetic technology together, writing data to discs that were far more robust than magnetic cartridges. No head crashes. No ferrite dirt. No scratched media. More importantly, it could be configured to emulate older storage devices. To the host computer, it would look exactly like an HP7906 disc drive. The system wouldn't know the difference. The test programs would load and run exactly as before.

Over the following months, we transferred hundreds of test programs from their vulnerable cartridges to the robust MO discs. Each migration was verified. Each program was tested. By the end, the entire RADCOM test suite lived on media that wouldn't scratch, wouldn't crash, wouldn't fail. 

The cost to the RSAF? Less than half of what Grumman had asked.

The project manager called me after the final acceptance to personally thank me. I appreciated the sentiment. But the real reward was seeing those MO drives spin up day after day, month after month, never losing a single byte of data.

Another obsolescence issue resolved—this time through retrofitting.

Ps: You can read the details and more in my latest book, A Memoir of Electronics, Discoveries, and a Life Less Ordinary by clicking on the book title.

Ron's Way

No matter how urgent some jobs may require our immediate attention, Ron would always insist on finishing the task on hand first. This seemed counterintuitive at first. When a commander makes a direct request, doesn't everything else stop? Isn't that how the military works?

Ron had a different perspective.

"If I drop everything every time someone asks for something," he explained once, "I'll never finish anything. And unfinished work creates more problems than urgent requests solve."

But he wasn't rigid about it. He had a system.

He had served overseas attachments in Japan, learning from technicians whose approach to craft bordered on the spiritual. He had worked in the repair bay of an aircraft carrier, where space was tight, resources limited, and the stakes as high as they get. He had done tours back in US military airbases, seeing how different units organized the same work.

He had seen more than any of us young technicians. And he had learned, from all of it, how to handle both people and work with clarity and confidence.

That's something I learned from him. Close up. As his personal apprentice. 

Mr. Ronald Paul Dykeman

Ron's coffee mug

Ron was, quite simply, one of the most experienced and meticulous engineers you could ever find. He had been with Grumman for decades. He had worked on the E-2C since its early days. He knew the RADCOM the way a master craftsman knows his tools—intimately, completely, with a depth of understanding that came from years of hands-on work.

But experience alone doesn't make a great teacher. Ron had something more: patience. The willingness to explain something five different ways until it clicked. The ability to stand back and let you make mistakes, then guide you through understanding why they were mistakes. The quiet confidence that came from knowing he didn't need to prove anything.

He didn't give answers. He gave directions. He taught us to think like diagnosticians, not just button-pushers. He taught us to understand the systems, not just operate the equipment. It was the best education I ever received.

Ron taught me about radar and communications and automated testing. But he also taught me something else: that the best teachers are also human beings, with humor and warmth and the ability to laugh at themselves.

I carried both lessons forward.