| The battery discharger published in the June 1998 issue of this magazine may be improved by adding a Schottky diode (D3). This ensures that...
More about Magnetic (153)
| Credit cards, Eurocheque cards, other types of bank cards and car park tickets: even if many of these cards contain chips, they all have mag...
| In 1888, the American researcher Oberlin Smith (1859–1934) published his thoughts on magnetic recording, which in 1898 led Valdemar Poulse...
| Towards the end of the 19th century several researchers were developing ways and means of converting sound into electrical signals. The fi...
| One of the problems that designers of portable equipment face is generating a regulated voltage whose level lies between those of a fully...
| It took the genius of Gauss, probably the greatest mathematician who ever lived, to see the proper importance of the discoveries of Oersted...
| The combination of a wire loop with the size of an A4 sheet, coupled to a carefully matched and easily tuned amplifier offers high-qua...
| These days when electronic circuits can be found almost anywhere, there is, some people fear, a different kind of environmental poll...
| Have you ever designed a printer circuit board for a project, especially a high-frequency RF one, only to find that when you have built th...
| The Type UGN3140 Hall-sensor from Sprague enables a magnetic- field detector to be constructed that is conspicuous by its simplicity.