より洗練された電圧計時計
本記事では、アナログ電圧計を用いた独自の時計製作プロジェクトを紹介する。従来の電圧計時計の課題を改善し、より正確で見た目も美しい設計を実現するための回路構成や校正方法について詳しく解説している。
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A hobbyist salvaged vacuum fluorescent display (VFD) tubes from an old calculator and built a custom clock. The project involved reverse-engineering the tube pinout, designing a multiplexed driver circuit with a MOSFET and microcontroller, and using a 32.768 kHz crystal for accurate timekeeping. The finished clock was mounted in a CNC-milled wooden enclosure.
The article describes building a voltmeter clock where the design focus was as much on the wooden enclosure and aesthetics as on the electronics, highlighting that circuit design can be as much about craftsmanship as engineering.