Burkhard Kainka (226)

1-07-2011 | The ring oscillator comprises a number of inverting transistor amplifier stages connected in series, in which the output of the final stage...

1-07-2011 | Hall sensors can of course be purchased but making them yourself is far more interesting (and satisfying)!According to the theory the crucia...

1-07-2011 | In days gone by a radio amateur always had a dip meter close to hand in his ‘shack’. Now that people can afford oscilloscopes, the poor old...

1-07-2011 | A shortwave audion receiver using only two transistors and a single 1.5 V battery — that must be the ideal entry level into shortwave receiv...

1-07-2011 | If you’ve read old textbooks on electronics basics you may recall how it’s possible to create a multivibrator from just a neon lamp and a ca...

1-06-2011 | The first device that springs to mind when thinking about measuring radioactivity is the Geiger-Müller tube. However, these counter tubes ca...

1-12-2010 | Anyone with an interest in radio DX-ing whether it be long wave, VHF or anywhere in between are faced with the same questions: which aerial...

1-09-2010 | It’s a simple fact: every recording sounds better with the right sound effects. Here we prove that it’s possible to generate a variety of ef...

1-07-2010 | Many radio amateurs in practice use two receivers, one portable and the other a fixed receiver with a PC control facility. The Elektor DSP r...

1-06-2010 | Photography and electronics make good companions. If you want to photograph fast events with high time resolution, you can’t manage without...