Elektor Team (9518)

1-07-1977 | This little circuit will produce a DC output that is almost twice the supply voltage. A square-wave input is required of...

1-07-1977 | This simple aerial amplifier can be used to boost the level of weak FM signals. It has a gain of 22 dB, and the extremely...

1-07-1977 | This simple aerial amplifier can be used to boost the level of weak FM signals. It has a gain of 22 dB, and the extremely...

1-07-1977 | The signal-to-noise ratio of an FM broadcast received in stereo is considerably worse than that of the same broadcast received in mono...

1-07-1977 | The signal-to-noise ratio of an FM broadcast received in stereo is considerably worse than that of the same broadcast received in mono...

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 | 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:...