| When a bicycle speedometer must be rugged, accurate and, above alt novel and a Iittle unusual, the 'high-rech' computerized LeD units fou...
| When a bicycle speedometer must be rugged, accurate and, above alt novel and a Iittle unusual, the 'high-rech' computerized LeD units fou...
| The regulated power supply and four identical current sources shown in the diagram enable the simultaneous charging of four 9-volt NiCd b...
| One instrument no electronics hobbyist can do without is a regulated power supply. This month we present a no-frills design that should...
| The tester, which is very useful for testing parts of electronic circuits consists of an oscillator that generates a 1 kHz test signal an...
| Simple battery chargers and power supplies are not normally provided with a current Iimiter. In many cases, however, it would be advanta...
| Digitally coded switches are useful and have many applications: for the individual who does not want to carry a heavy bundle of keys for...
| The power supply for the delay circuit is derived directly from the mains by a bridge rectifier; D1-D4. The rectifier must be able to han...
| 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...
| Texas Instruments' TPIC2404 is a monolithic, high-voltage, high-current, quadruple switch especially designed for driving peripheral loads...
| Dissipation in electronically regulated power supplies, manifested by heat, is a problem that is normally tackled by providing external he...