| LEDs are used everywhere these days, not just as on/off indicators any more but now also as a source of light. Before you mount an LED in yo...
Ton Giesberts (354)
| Shoes that light up? No problem, these days you can buy (almost) anything. But it is of course much more fun and challenging to enhance a pa...
| In rooms without adequate heating but containing sensitive equipment it would be nice to obtain at least an indication as to whether the tem...
| Has a channel from your stereo failed, or you don’t hear anything any more from your headphones from your MP3 player? It could be a broken w...
| The idea for this adapter was really born out of necessity. The 24.576-MHz crystal oscillator that is used in the Audio ADC 2000, (24 bit/96...
| This circuit (admittedly a big word for three connectors), was born out of necessity. Many years ago, when reliable scanners were still bein...
| There are many circuits for low voltage regulators. For higher voltages, such as supplies for valve circuits, the situation is different. Th...
| This power supply was designed for use with the ‘Simple hybrid amp’ published elsewhere in this issue. It is of course suitable for use in o...
| As opposed to the widespread Baxandall circuit (dating back to 1952!) a ‘paraphrase’ tone control supplies a straight frequency response as...
| Even the most experienced electronics engineer will undoubtedly come across these: short-circuits in places where they don’t belong. And the...