Okay, I'm just rambling now!!!
I grew up right across from the Shogakukan Vacuum Tube Factory, which meant I was already exposed to it (laying the groundwork for my future as an engineer). At the time, all I knew about Shogakukan was that they produced boxes and boxes of small light bulbs and cathode ray tubes. It wasn't until when I was 7 years old (in 2008) that I learned that the light bulbs were actually vacuum tubes, and the cathode ray tubes were also vacuum tubes. As a primary school student, I didn't have much to do, so I would just wander around aimlessly. Because one of my classmates lived in the Shogakukan factory, I would often explore the different workshops. I remember seeing a wall in one workshop that looked very futuristic (it was an old workshop), and also saw various large containers filled with glass tubes being blown, which seemed fascinating. My classmate's family told me that these weren't just light bulbs; they were vacuum tubes, with things like anodes, cathodes, and grids inside, which could amplify signals. At the time, I didn't understand what any of it meant, but I knew that it was used in radio equipment. Then, my uncle was a skilled electrician, and he also loved working with various electrical products. He gave me many DIY projects to play with.
However, in 2010, I moved and changed schools, and I could no longer see those very cyberpunk-like scenes. I began to miss them terribly, so I started searching online for "vacuum tube," but I got completely lost and ended up on a strange forum called "Mineral Radio." (I also learned aboutAmateur radio), after three years of self-study, I had a basic understanding of the fundamental principles and design methods. In the same year (2013), I also obtained my first multimeter! I started by scavenging discarded circuit boards from scrap yards (don't do this!), and gradually began collecting electronic components (this is essentially DIY electronics). I then started building various circuits (with limited success), while also pursuing my studies in school. My textbooks were primarily ARRL's "Getting Started with Electronics" and "Radio Circuitry," which I used for theoretical learning. It wasn't until 2016 that I took the operating license exam, and I also met a close friend. @YofoaStudio I didn't realize we went to the same middle school until I started my amateur radio hobby, which is when our connection began.
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