| About twenty years ago I recycled and modernised a vintage clock with Nixie tubes built by my father in the nineteen seventies. I replaced t...
All items tagged with Tubes and Gerber (3)
| Measuring temperature and humidity with a modern sensor and displaying the values on a retro display — it’s all described in this article. A...
| Herwe use a green glowing valve as a CPU activity meter. Power and control are both provided by the USB port. A simpler variant on the circu...