| Some designs, because of lack of space or for some other reason, do not use a power supply transformer. Instead, an ‘AC voltage dropper’ in...
Sjef van Rooij (10)
| After one too many flooded basements, the author of this design was fed up. The mechanical float switch for the sump pump, which pumps the w...
| Completely ‘self-supporting’ garden lamps using solar cells as their energy source are gradually becoming more and more common. How do they...
| By now, loyal readers probably expect that every year around the holiday season, Elektor Electronics will come up with a playful circuit tha...
| It happens very often that there is a marked change in the sound level when you change the audio source. However, you can quickly put an end...
| This time, Velleman have sent us a car burglar alarm construction kit for evaluation. This is a fairly simple but highly functional circuit,...
| Seiko recently introduced a new line of wristwatches under the somewhat cryptic name of ‘kinetic auto relay’. The internal construction of t...
| This device is an outstanding choice for a talking doorbell or any other application in which a short text of your own choice must be repeat...
| A small effort and an even smaller outlay is required to throw an electronic gadget together that’s sure to make a great gift for Valentine’...
| Electrical components cannot deal especially well with static charges, which is a good reason to treat such charges carefully and with respe...