More about switch (472)

1-12-2002 | This circuit is a switch for electric motors, which can be operated by a R/C model remote control unit. The electronics are very simple, and...

1-12-2002 | Inexpensive receivers for standard infrared remote control units for television sets and video recorders are available in the form of integr...

1-12-2002 | This proximity switch employs a reed switch as the sensor device and the good old CD4017 decade counter for pulse processing. When the circu...

1-12-2002 | At last there is another project for caravan owners. They are probably all aware of the problems of a flat battery when they’ve forgotten to...

1-07-2002 | This compact design forms a remotely operated switch that receives its control signal via the mains voltage. The switch is operated using th...

1-07-2002 | This circuit is intended as an extension for (pre-) amplifiers, to increase the number of inputs. Ever since the introduction of MD-recorder...

1-07-2002 | Old PCs are usually not immediately discarded after the purchase of a new one, but often remain in use for certain tasks. To avoid being tie...

1-07-2002 | The circuit shown here was born out of necessity after one of our colleagues had just renovated his kitchen and realised afterwards that the...

1-07-2002 | This circuit acts like a two-position switch but is operated using a pushbutton. After power has been applied, the circuit is in the followi...

1-12-2001 | This article is mainly about the board and the uses to which it can be put. The circuit is simplicity itself and consists of four phono sock...