| An extremely basic oscilloscope is better than none at all and sometimes it’s more important that the device is very small, standalone and e...
Burkhard Kainka (218)
| You occasionally see advertising signs in shops with a blinking LED that seems to blink forever while operating from a single battery cell....
| Hall sensors can of course be purchased but making them yourself is far more interesting (and satisfying)! According to the theory the cruci...
| 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...
| Anyone who designs, builds, or repairs radio receivers can make good use of a small AM signal generator. With a suitable signal waveform, yo...
| The WSPR (Weak Signal Propagation Reporter, pronounced ‘whisper’) radio transmission technique was developed to enable considerable distance...
| The final instalment of the short series on opamp basics explores some of the more unusual features of operational amplifiers. Another topic...
| Too many electronics enthusiasts harbour a certain reluctance to enter the world of microcontrollers and programming. It really is not so di...
| In many applications it is essential to use an opamp with extremely high impedance inputs. In these cases a standard bipolar device will not...
| This concluding part of our series on the Elektor SDR Shield 2.0 [1] is also the start of a new beginning. This automatically tunable receiv...