Ton Giesberts (354)

1-02-2010 | With personal PA systems there’s a fairly good chance of feedback howl. This occurs when the headset microphone picks up the sound from the...

1-02-2010 | When the load of a power supply is not purely resistive but reactive, or worse, non linear, the current through the load may not have the sa...

1-02-2010 | A minimum of parts is needed to turn a TDA7052 IC into a mini audio amplifier. Here's how.

1-11-2009 | During the winter many people suffer from Seasonal Affective Disorder (SAD), which is commonly known as the winter blues. With the help of b...

1-10-2009 | For the last few years we haven't worried too much about noise in audio any more. In the past, and we mean the pre-CD era, the noise fro...

1-10-2009 | The PWM power stage discussed in the previous instalment (June 2009) can be used perfectly well on its own. But a matching preamplifier with...

1-07-2009 | Considering its low cost, a commercial walkie-talkie (PMR) set are very suitable for use as a wireless baby monitor, with the addition of se...

1-07-2009 | This circuit was specially designed to be used with the FM Audio Transmitter found elsewhere in the Summer Circuits 2009 issue, but it can a...

1-07-2009 | One way to detect AC power current and generate a reasonably constant voltage independent of the load is to connect a string of diodes wired...

1-07-2009 | Here's how to use commercial wireless audio/video modules to transfer an S/PDIF signal. The S/PDIF signal is connected directly to the video...