| A power supply is described whose output can be switched to the six most common output voltage requirements and which can provide a contin...
| A power supply is described whose output can be switched to the six most common output voltage requirements and which can provide a contin...
| Water pipes can be descaled withb the aid of a magnetic field or an electric filed. The present descaler uses an electric field, which is...
| Opinion is divided on the subject. Some say it's extremely useful, while others hold that it is only for restless TV addicts. Picture-in-pic...
| A dongle is a small plug-in device which must be attached to your computer's printer port to be able to run a certain program. Over the ye...
| In this series we look closely at digital electronics, what it is, what it does, how it works, and its promise for the future.
| The principle of the circuit is that on the basis of the current drawn by a mains-operated master equipment another appliance, the slave,...
| Thee starting current of heavy-duty d.c. motors can be 3-8 times as high as the normal operating current, which puts a heavy load on the...
| Printer buffers serve to ensure that the data to be printed are taken from the computer as quickly as possible so that th e computer can...
| Parallel inputting of data into a PC is not straightforward , unless an 8-bit slot is available into which an easily available card with...