The actual length of the board was 49 cm, as opposed to 240.5 m for the real thing made from concrete and visible in and around Düsseldorf, Germany.). The PCB consisted of several sections to build the tower base, the control board, a small keyboard, and the tower proper ( Figure 3, Elektor’s stunning PCB artwork for the Rhine Tower project. DCF77 transmits Central European Time (CET).įigure 2: CPU and driver section schematic. From previous projects employing the DCF77 signal, we know that reception is just about adequate in South-Eastern parts of England, South Scandinavia, and most of Central Europe.” In fact, the most distant DCF77 reception report I got by mail was from a proud lab owner in Ryad. 1,609 km) from the transmitter location in Mainflingen, Germany. “DCF77 reception should be possible,” the article said, “within a radius of just under 1000 miles (ca. Contrary to the original Elektor project from 1998, the Rhine Tower Clock Mk2 was also able to work without the reception of the DCF77 time signal transmitter. The outline of the Rhine Tower can be seen in the drawing in Figure 1, which also shows the coding system used to display the time to bankers and lesser inhabitants of Düsseldorf city and surrounding areas. In the Elektor replica, the 39 lamps indicating the time on the real tower were replaced with yellow LEDs, and the restaurant and beacon lights, with red LEDs.
The resulting project was a tall success in Elektor’s publication history and is instantly recognized by many to this day. De Mülder spent about two years perfecting the software and defining the outlines of a massive circuit board after the 240.5-meter high (789 ft) Rhine Tower in Düsseldorf. Based on his original article in May 1998 called “ DCF-Controlled LED Clock ” freelance contributor D. Typical for many successful Elektor projects, the Rhine Tower Clock Mk 2 from January 2000 was the result of ripening.
The result is not only an eye-catcher but also one of the largest and most popular circuit boards ever sold by Elektor. This project, a replica of Düsseldorf’s iconic Rhine Tower, demonstrates the joint creative power of an Elektor freelance author and an Elektor Lab engineer.
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