| Many households have a utility supply with a separate day/night tariff, where the electricity board delivers cheaper power during the night...
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| Miniature radio controlled cars are great fun for the armchair rally enthusiast but once the novelty has worn off or the car suffers a mecha...
| Many of you will have an old mobile phone gathering dust. The circuit shown in this article gives the old mobile a new lease of life, enabli...
| The circuit uses the familiar LM2575 step-down regulator from National Semiconductor. This circuit converts a positive-voltage step-down reg...
| The switching threshold of the MAX6509 temperature switch from Maxim can be programmed over a range of –40 °C to +125 °C using an external r...
| If the effort of chasing out channels and replastering for a complete new circuit is too much, then this circuit might help. Normal operatio...
| Overcurrent sensors using external low-resistance sense resistors are fairly common. However, the members of a new family of ICs from Maxim...
| This circuit is for an unusually sensitive and stable proximity alarm which may be built at very low cost. If the negative terminal is groun...
| Readers of Elektor Electronics who have both a PC and children face a particular problem. Since the young tend not to be too circumspect in...
| Presettable times for train stops in stations are indispensable if you want to operate your model railway more or less realistically accordi...