More about power (1010)

1-10-2003 | Genuine power valves such as the EL84, EL95, ECL80 and ECL86, and in particular the PL504, do of course offer more power output at low anode...

1-09-2003 | In recent years the LED has seen many improvements so that we see them fitted in more and more situations where filament lamps were traditio...

1-07-2003 | This circuit senses AC audio voltage supplied to the car-radio loudspeakers and displays it as power using a LED bar graph, achieving at the...

1-06-2003 | Although the amount of power drawn by electronic circuits is steadily decreasing, there are still many devices that need a large amount of l...

1-04-2003 | This circuit can be built into a power bar and used to remotely switch six socket-outlets. It is controlled via an RS232 interface and uses...

1-03-2003 | This compact stabilised power supply was specifically designed to obtain the best performance from the recently described subwoofer that for...

1-03-2003 | This processor-driven automatic fan controller does not just run in parallel with the toilet light, but instead allows the user to adjust th...

1-12-2002 | Portable radios, CD-players and cassette recorders that can also be operated from mains power often do not have a mains power switch, but in...

1-12-2002 | In order to monitor multiple power supply voltages it is possible to use one comparator per voltage, coupled with some logic to combine the...

1-12-2002 | This circuit represents a general-purpose automatic shut-off switch. The author uses it in his car to ensure that any lamp left on by accide...