Ton Giesberts (357)

1-12-2010 | Power LEDs are getting more and more powerful. Although some can be pricey, we wanted to see for ourselves what one of these modern ‘heavywe...

1-11-2010 | In this second and closing instalment we get real with two times 32 NE5532 opamps paralleled to form a high-end audio power amplifier with e...

1-10-2010 | Here at Elektor, for more than 20 years we’ve held the opinion that electrolytic capacitors have the worst properties for audio signal paths...

1-09-2010 | An important advantage of the Elektor DSP radio over other world receivers is the flexibility the user has to change its characteristics, bo...

1-09-2010 | For the Unilab power supply module, we have developed a special meter circuit in the Elektor Labs with a four-line display that shows the ou...

1-07-2010 | The purpose of the circuit is to ensure that AC power is not supplied to devices connected to K3 unless the device connected to K2 is drawin...

1-07-2010 | The indicator described here is specifically designed for adjusting the dynamic limiter described elsewhere in this edition and checking whe...

1-07-2010 | This circuit is a revised version of the Audio Limiter published in the 2002 Summer Circuits edition, which is intended to limit the (possib...

1-06-2010 | Why couldn’t you just connect two standard switch-mode power supplies in series to create a symmetrical power supply for a power amplifier?...

1-05-2010 | The article 'Blinded by the Light?' in last the February 2010 edition showed that LED lamps didn’t exactly present a clean load to t...