| Most people wilt have seen the desk-top ornament/toy known as a `Newtons cradle` (see figure 1), which consists of usually five steel balls...
| Most people wilt have seen the desk-top ornament/toy known as a `Newtons cradle` (see figure 1), which consists of usually five steel balls...
| In most windscreen wiper delay circuits the wiper speed is indepen-dent of the speed of the car. However the faster the car travels, the mor...
| The following circuit is intended as an infra-red lock for house doors, garage doors, etc. Since the `key` is almost impossible to copy, it...
| Multiply X and Y and you get XY -all very simple and straightfor-ward -at least on paper. But what if X and Y are analogue voltages, which m...
| Circuits for synthesising peak pro-gramme meters by using light emitting diodes are certainly not new, but the design shown here offers simp...
| Il est souvent très utile de vérifier la valeur d`un condensateur suspect ou non marqué, ou de déterminer la valeur d`une inductance que l`o...
| Derrière ce titre se cache un jeu d`adresse bien connu, dans lequel deux joueurs tentent chacun de faire passer un anneau le long d`un fil s...
| For microcomputer enthusiasts and anyone working with large scale digital circuits, a ribbon cable tester can prove a usefu I aid.
| In the world of model railways, electronics is playing an increasingly important role, and it is only a matter of time before the micro-proc...
| With the aid of the following circuit a seven-segment display can be gener-ated on an oscilloscope screen. The height and width of the digi...