| The Conrad Electronics company has a light flash stroboscope kit in its product line (number 580406) which can be easily expanded with an el...
Bernhard Oehlerking (12)
| Miniature radio controlled cars are great fun for the armchair rally enthusiast but once the novelty has worn off or the car suffers a mecha...
| Oscillators are ten a penny, but this one has something special. Its frequency can be adjusted over a range of 800:1, it is voltage controll...
| The circuit presented here (in two versions) uses a light barrier as a position sensor. In the first version (Figure 1), the light barrier c...
| A radio camera on a model railway should transmit constantly while the train is moving and continue transmitting for a few minutes after the...
| Many of you will know that a digital oscillator built from unbuffered inverters in a 74xx04U IC has to be followed by a ‘normal’ gate. Both...
| Small switch-mode power supplies are often available at a low price from jumble sales, electronics surplus outlets and high street electroni...
| It is generally known that the forces of nature can be destructive, as proved time and again by storms, tsunamis, tornados, tidal waves and...
| In situations where a PC is used as a dedicated controller the user-interface can often be simplified. Just a few input buttons together wit...
| This pulse generator, which can be programmed using Visual Basic 5.0, employs the simplest imaginable hardware but offers capabilities that...