| Nowadays you can buy these things ready-made for a mere trifle – but here you can see how this was done in the past...
More about circuit (745)
| In a not yet dim past we started this series with an ‘energy-efficient relay’. Here is a variation on that topic, and a super-simple one at...
| Simply forgot to water it – and then you can wave goodbye to that expensive bonsai. A pity about all the work that went into it… But this dr...
| There will have been a time when you needed to drill a few holes in a wall to hang something up – but what about those electrical wires neat...
| April 1 is quickly approaching again, and in these uncertain and virus plagued times, a little bit of light-heartedness can do no harm. Hen...
| With the compliments of the Elektor Labs and Editorial teams, here comes another ‘fresh’ article that's free to download by all registered E...
| The prospective short-circuit current (PSCC) is the maximum current that can flow through a shorted electrical circuit. The PSCC value is ne...
| The alarm clock (radio) has seen two significant improvements since its invention. The first is the snooze button, and the second we present...
| Practically any amateur musician will be familiar with the old-fashioned mechanical metronome and its nice ‘double tick’ sound. Here were pr...
| Long ago, before semiconductors became run-of-the-mill, a small neon lamp and a capacitor were used to generate a sawtooth…