Burkhard Kainka (212)

1-11-2003 | Just knowing that electrostatic charges can damage and destroy expensive components is fine, but being able to measure them is even better b...

1-11-2003 | A class-A FET amplifier can be made to sound as good as a valve amp when you follow the right design principles. This amp may not have a par...

1-10-2003 | It is not just power amplifiers that can deliver the much sought-after warmth of the ‘valve sound’ — headphone amplifiers can too. What is s...

1-10-2003 | GoldCap capacitors offer an interesting alternative power source when compared to conventional disposable or even rechargeable batteries. Th...

1-10-2003 | Genuine power valves such as the EL84, EL95, ECL80 and ECL86, and in particular the PL504, do of course offer more power output at low anode...

1-09-2003 | Is it just nostalgia, or are valves really somehow better than transistors? Recently valves have been making something of a comeback in many...

1-09-2003 | It’s probably the worst nightmare for all PC owners: The fan has been quietly doing its job keeping the PC internals nice and cool but over...

1-02-2003 | Ordinary proximity detectors use infrared sensors which respond to the warmth of the human body. But there’s a simpler way: we can use ambie...

1-12-2002 | Inexpensive receivers for standard infrared remote control units for television sets and video recorders are available in the form of integr...

1-12-2002 | External components have to be used whenever the number of port lines on a microcontroller is insufficient. And when you need to process ana...