Burkhard Kainka (226)

1-02-2004 | Electronics hobbyists often wish to copy a circuit for which suitable coils or fixed inductors are not readily available. However, you can w...

1-01-2004 | It is a generally known and accepted fact that servos used in radiocontrolled models see very little or no use outside the model flying, rac...

1-12-2003 | Wireless communication using infrared light has many advantages over the traditional mess of cables. This goes not only for PCs and laptops,...

1-12-2003 | Did you know that the BBC transmits digitally on shortwave and medium wave? The only trouble is DRM (Digital Radio Mondiale) radios are not...

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...