More about time (745)

1-07-1991 | This simple circuit, based on a single opamp in non-inverting mode, is a precision rectifier extension for digital voltmeters. The circu...

1-07-1991 | The tester in the diagram can be used to test virtually any kind of semiconductor device, ranging from switching diodes to power transis...

1-07-1991 | Many model train enthusiasts find the mechanical reversing system for trains in the HO series from Märklin and other manufacturers primi...

1-07-1991 | The present circuit was developed to make it possible for different sensors to be added ro an existing alarm installation. These sensors...

1-07-1991 | To prevent the dynamo-driven lights of your bicyle going out when you stop in the dark for, say, traffic lights, the simple circuit here...

1-07-1991 | Many people still use the old C64 computer to play games on, but get frequently annoyed by the constant need of changing over the joysti...

1-07-1991 | Many electronic circuits frequently require the brief delay of a pulse. Such a delay, here between 100 µs and 100 s, is easily provided...

1-07-1991 | The pump in sorne central-heating systems has two or even three speeds. At the lowest speed, not much hot water is pumped around the cir...

1-07-1991 | There are nowadays so many different standards for buses and networks that it was thought useful to present an overview of the most current...

1-07-1991 | Telephones are now readily and cheaply available: two identical ones and a handful of components enable a simple house-telephone to be s...