| Overcharging of batteries is prevented by the timely switching off of the charger. A timer that can be set to within a minute can be bui...
| Overcharging of batteries is prevented by the timely switching off of the charger. A timer that can be set to within a minute can be bui...
| One instrument no electronics hobbyist can do without is a regulated power supply. This month we present a no-frills design that should...
| This is an improved version of the slave mains on-off control published in the July 1990 issue of Elektor Electronics. The circuit has be...
| Programming pocket computers is normally a tricky job, owing to the small keys and the small memory. The pocket computers from Sharp, whi...
| Amplifiers that have no capacitor at their output may, in case of a defect, apply a direct voltage to the loudspeakers and this can destr...
| BURR-BROWN's REF200 provides in one 8-pin DIL package two Independent current sources, either of which can supply 100 µA, and a 1:1 curre...
| This little circuit, designed and marketed as a kit by ELV, provides a visual warning when the maximum drive power to a loudspeaker is...
| The Acorn Archimdes, well-known far its speed and good graphics facilities, has a video interface that allows programmers to design a va...
| Ni-Cd batteries are now used in so much everyday equipment that most households need at least one suitable charger. The one presented her...
| Digital Research has recently introduced what can safety be called the most memory-efficient operating system for PCs. Apart from being a...