All items tagged with simple and time (19)

1-12-1993 | The timer is based on the well- known display driver LM3915, which has a logarithmic scale. This may seem strange, but is not because a s...

1-12-1992 | A tester for MIDI connections is a real asset for many constructors. The one presented here is kept fairly simple as shown in the diagram...

1-07-1992 | This signal generator provides a 440 Hz sine wave output at two levels. The power supply may lie between 1.5 V and 16 V, so that even a...

1-03-1992 | The circuit shown below is a simple, yet versatile, timer. lt allows loads drawing up to 5 A, for instance, a low-voltage power supply, to...

1-12-1991 | Overcharging of batteries is prevented by the timely switching off of the charger. A timer that can be set to within a minute can be bui...

1-12-1990 | The frequency of the sine wave oscillator shown here is determined by a direct voltage, Uc, of 0-15 V. The distortion on output signals o...

1-07-1990 | The purpose of this simple circuit is to deter potential car burglars simply by a brighlly flashing LED, implying that the car is fitted...

1-07-1990 | This simple bedside light is suitable for telling the time at night, findings one's way to the door, and so on.

1-04-1983 | programmable darkroom timer elektor april 1983 programmable darkroom timer convenient IC allows simple construction Many amateur photographe...