Ton Giesberts (358)

1-07-2006 | This circuit (admittedly a big word for three connectors), was born out of necessity. Many years ago, when reliable scanners were still bein...

1-07-2006 | There are many circuits for low voltage regulators. For higher voltages, such as supplies for valve circuits, the situation is different. Th...

1-07-2006 | 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...

1-07-2006 | As opposed to the widespread Baxandall circuit (dating back to 1952!) a ‘paraphrase’ tone control supplies a straight frequency response as...

1-06-2006 | Even the most experienced electronics engineer will undoubtedly come across these: short-circuits in places where they don’t belong. And the...

1-04-2006 | The most dreadful electronics part is perhaps the toroidal core. Anyone who has wound one themselves can relate to that. Particularly if mor...

1-02-2006 | A few months while scrutinising a great design for a pulse-width modulated audio amplifier with a 2x100 W power rating and a very small encl...

1-02-2006 | Some people find electric arcs scary, while others find them especially fascinating. If you’re not afraid of a few kilovolts and observe due...

1-02-2006 | This design tip describes a simple equation to compose a desired resistance from two parallel connected resistors.The formula for parallel c...

1-01-2006 | Despite the digital revolution there continue to be many photographers who still prefer to work with an ‘analogue’ SLR camera. While most of...