| Ruminations on the use of a device to tackle Phase and Earth issues in AC wall outlets.
| Ruminations on the use of a device to tackle Phase and Earth issues in AC wall outlets.
| For meetings that do not involve too many people the microphone built into the webcam or laptop is usually sufficient for conferencing, but...
| In the lab we don’t just design circuits. Technical questions also find their way to the heart of the company. Despite the fact that we do o...
| What’s impossible for an IR thermometer, such as those in last month's test, is a piece of cake for a so-called thermal camera, which is als...
| When we tested the Microphone Conferencing System described elsewhere in this edition we were initially satisfied with the results. However,...
| Generally speaking, audio-oriented enthusiasts tend to dislike noise and would rather see the back of it. However, for once it was the oppos...
| In September 2010 we published a digital multi-effects unit. This circuit can only be used with line level signals, such as those used by ke...
| “Know what you measure” is obviously derived from the phrase “know what you eat”, but that doesn't make it less true. During our IR thermome...
| Cameras with night-vision capability are not all that cheap. Webcams are. Can you modify such a webcam so that it becomes suitable as a nigh...
| When my friend Grégory showed me a 64×32 pixel two-colour LED panel picked up from an Internet retailer for about 50 dollars, I immediately...