Luc Lemmens (180)

1-07-1995 | This article proves that building a no-frills RF-signal generator has nothing to do with sorcery as many d.c. oriented constructors seem t...

1-07-1995 | Chaos is all around us: on the roads, in nature, in the weather, and in everyday life. Electronic systems may also show chaotic behaviour...

1-04-1995 | The detector makes sounds at frequencies of 10-300 kHz audible to human beings. The conversion is ca ried out either by a superheterodyne...

1-03-1995 | This article is intended as a brief introduction to digital signal processors (DSPs) and what makes them different from traditional proce...

1-03-1995 | Although it has no detector or alarm actuation device of any kind, the present circuit may still function as a deterrent against car thi...

1-02-1995 | Many car battery chargers costing not more than £12- £15 are pretty spartan devices. Car owners should beware of using such chargers whi...

1-12-1994 | Just a few components suffice to provide a car with a visible as well as an audible indication when it is being reversed.

1-10-1994 | The battery charger is intended primarily tor charging, and keeping charged, without supervision, lead-acid batteries of cars and motorcyc...

1-10-1994 | The very compact converter produces a stable 5 V direct voltage supply from an input of 2.5 V, and is thus eminently suitable tor use in p...

1-07-1994 | Any PC, however old, is too valuable to break down as a result of inadequate cooling, usually caused by fan failure. The alarm causes a...