| Before setting off for (hopefully) sunnier climes, many prospective holidaymakers use a UV lamp to acquire an initial tan. Unfortunately, th...
| Before setting off for (hopefully) sunnier climes, many prospective holidaymakers use a UV lamp to acquire an initial tan. Unfortunately, th...
| The circuit described here is a versatile timer/controller, capable of switching 4 separate outputs on or off at 4 pre-programmed times ev...
| Boiling eggs is one of the more delicate of culinary occupations, especially since the ideal consistency of a boiled egg can be the subject...
| Another programme which will shortly be made available on the same disc as the clock programme is for a reaction timer. With the aid of t...
| Developing photographic films can be something of a chore. Not only is it necessary to measure the total development time, but it is also...
| Although there is no shortage of designs for darkroom timers, many of these suffer from the twin drawbacks of a linear timing scale and...
| Using only a few components and an inte- grated switching circuit it is possible to construct a high-performance voltage- f...
| Anyone possessing a frequency counter with a facility for period measurement can build this simple add-on unit to measure capac...
| Wherever there is a mass market for a complex digital circuit, an LSI chip is sure to appear. It should not come as a...
| Relatively few components are used in this eggtimer. The `boiling time` is automatically determined according to the size of the egg an...