Ton Giesberts (358)

1-12-2004 | There are plenty of mains filters available, with or without sockets, with or without a switch, etc. In any case, this filter is very versat...

1-11-2004 | In the three-part article for the ClariTy 2 x 300-W final amplifier, the various input and output filters were not described. In this articl...

1-10-2004 | As already mentioned in the previous parts of this article, this final amp needs more than just a heavy-duty symmetrical power supply. In th...

1-09-2004 | A pulse-width-modulated output stage with hi-fi characteristics is something rather special. We already described various aspects of this de...

1-07-2004 | If you ever thought of experimenting with pulse-width modulation, this circuit should get you started nicely. We’ve kept simplicity in mind...

1-06-2004 | This top-end amplifier proves that high power does not have to mean a large, heavy design. Although this amplifier is highly efficient (and...

1-12-2003 | It is often required to switch electrical appliances from a distance (the garage light, when you’re still in your car for example) without t...

1-12-2003 | The idea behind this economical flashing LED indicator is very simple: it uses a very low frequency oscillator to drive two LEDs. As can be...

1-12-2003 | The best-known ways to transmit a digital audio signal (S/PDIF) are to use a standard 75-? coaxial cable or Toslink optical modules with mat...

1-12-2003 | This simple circuit proves to achieve surprisingly good results when used with the IR–S/PDIF transmitter described elsewhere in this issue....