| Most meter modules using a liquid-crystal display (LCD) and some using a light-emittingdiode (LED) display need a power source that is is...
All items tagged with Simple and Power (23)
| A variable power supply is described that in spite of its simple design has two clear benefits. In the first place, it is built from d...
| The circuit is intended for carrying out harmless experiments with high-voltage pulses and functions in a similar way as an electrified...
| The tester checks whether a transistor, n-p-n as weIl p-n-p , works or not. If it does. the buzzer emits a squeak.
| The I/O card provides 8 inputs at TIL level, 8 outputs with data memory and power buffer and 8 preset I/O addresses.
| This circuit provides a simple means of implementing a 'soft-start' on heavy mains loads. Basically, this is achieved with the aid of hig...
| It is not always necessary to resort to special les when TTL logic is to be connected to an RS232 interface. Here, a simple adaptor is pro...
| The best known alternatives to a 'quick and dirty' power supply are tbe three-pin flxed voltage regulator and the zener-plus-transistor...
| Print files, whether they contain text, graphics or both, seem to become larger and larger as the programs that output them, and the print...
| Over the last few years, a variety of low-power Helium-Neon (HeNe) laser tubes has founds its way in into the electronics surplus trade circ...