All items tagged with simple and light (6)

1-07-2008 | On my mountain bike I always used to have one of those well-known flashing LED lights from the highstreet shop. These often gave me trouble...

1-07-2002 | This infrared alarm can be used to detect persons passing through doorways, corridors and small gates. The transmitter emits a beam of infra...

1-07-1998 | Simple triangle-wave generators have a weakness in that the waveform of their output signal normally cannot be modified. The circuit pre...

1-09-1996 | Although the human eye is unable to detect infrared light, this Kind of light is emitted by many apparatus around us in everyday life....

1-06-1996 | A simple switching clock which keeps one light on in the evening hours when you are not at home is no Ionger taken seriously as a burg...

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.