Ton Giesberts (354)

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....

1-12-2003 | There are circuits that consume only a little power or require power occasionally for short periods of time. An example of this last type is...

1-12-2003 | This addition to the receiver part of the ‘FM Remote Control’ is mainly intended for use as a simple intercom or P.A. system. With a few cha...

1-12-2003 | The ‘FM Remote Control Receiver’ has a connector where an analogue output is made available. To make a simple intercom or P.A. system the as...

1-12-2003 | This extremely simple transmitter, consisting of only an encoder IC and a 433 MHz licence-exempt TX module, was designed to remotely switch...

1-12-2003 | A number of years ago (November 1997), we published a design for a stereo microphone preamplifier with balanced inputs and a phantom power s...