Elektor Team (9512)

1-07-1977 | This ingenious touch switch is operated, not by skin resistance or capacitance effects, but by heat. The circuit utilises the neg...

1-07-1977 | Mains frequency is often used as a reference for digital clocks and other digital circuits. Unfortunately problems can arise...

1-07-1977 | Mains frequency is often used as a reference for digital clocks and other digital circuits. Unfortunately problems can arise...

1-07-1977 | The 723 is an extremely useful voltage stabiliser. It can be used for a wide range of supply voltages, with one limitation:...

1-07-1977 | The 723 is an extremely useful voltage stabiliser. It can be used for a wide range of supply voltages, with one limitation:...

1-07-1977 | Circuits which use photosensitive devices such as LDRs, photodiodes or photo- transistors to sense rapid changes in light l...

1-07-1977 | Circuits which use photosensitive devices such as LDRs, photodiodes or photo- transistors to sense rapid changes in light l...

1-07-1977 | This sawtooth waveform generator which is built round a current controlled oscillator is distinguished by its large sweep range....

1-07-1977 | This sawtooth waveform generator which is built round a current controlled oscillator is distinguished by its large sweep range....

1-07-1977 | Electric motors up to around a quarter horsepower can often be picked up very cheaply (ex-domestic appliances). They are...