| What’s this, a professional-looking keyboard with no legends on the keycaps? This is intentional, so that you can choose the function perfor...
| What’s this, a professional-looking keyboard with no legends on the keycaps? This is intentional, so that you can choose the function perfor...
| This is a DIY version of a device that can be found in various forms in the clinics of physiotherapists and massage institutes. It produces...
| The Lego Robotics Invention System has been available for a while already. This system enables every computer hobbyist to design, build and...
| The tiny medium-wave (MW) receiver described in this article is an ideal construction project to while away the dreariness of a rainy winter...
| A small solar power installation consists of at least three components, namely a solar panel, a storage battery and a charging regulator. Th...
| The integrated output amplifier described in this article consists of little more than one integrated circuit. It is intended especially for...
| If you have a general coverage shortwave receiver available and would like to extend its frequency range with the two-metre amateur radio ba...
| Awkward keyboard commands and uncomfortable mouse control can spoil even the most attractive PC game. The ideal solution would be simple ope...
| There’s nothing better than a long-wire antenna for shortwave reception, but not everyone has the necessary space. The active loop antenna d...
| The general-purpose transformer board described in this article has space for two small mains transformers, two mains filters and two fuse h...